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From [https://github.com/Bumblebee-Project/Bumblebee/wiki/FAQ Bumblebee's FAQ]: Bumblebee is a effort to make Nvidia Optimus enabled laptops work in GNU/Linux systems. Such feature involves two graphics cards with two different power consumption profiles plugged in a layered way sharing a single framebuffer.
From [https://github.com/Bumblebee-Project/Bumblebee/wiki/FAQ Bumblebee's FAQ]: Bumblebee is a effort to make Nvidia Optimus enabled laptops work in GNU/Linux systems. Such feature involves two graphics cards with two different power consumption profiles plugged in a layered way sharing a single framebuffer.


== Install Dependencies ==
The discrete GPU (NVidia) is turned off when not in use and activated and turned on though ACPI calls when demanding OpenGL applications require the extra power the discrete GPU can give. Demanding OpenGL applications might include such things as 3D games or 3D rendering software but would not include such things as a web browser or a video playback program like mplayer or VLC.
 
== How can you tell if you have an optimus notebook computer? ==
 
If you purchased a notebook with an NVidia sticker on it, you ''might'' have a optimus computer. If you don’t have an optimus technology computer nothing in this documentation is relevant to your PC. (Optimus was slated at one point to go in desktop PCs but the industry ended up rejecting that concept…)
 
To tell, after you have installed the OS, open a terminal window and type:
 
<pre>
<pre>
# yum install -y libbsd-devel libbsd glibc-devel libX11-devel help2man autoconf git tar glib2 glib2-devel kernel-devel kernel-headers automake gcc gtk2-devel
$ lspci | grep 'VGA\|3D'
</pre>
</pre>


You also need to install [http://www.virtualgl.org/VirtualGL VirtualGL]. Download the latest version for your arch at [http://www.virtualgl.org/Downloads/VirtualGL the VirtualGL download page] or use yum command
If you see two video cards in the output like:
 
<pre>
$ lspci | grep 'VGA\|3D'
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
02:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 940MX] (rev a2)
</pre>
 
And one is a Intel “Integrated Graphics Controller” and the other is a “NVIDIA Corporation” chip, then you probably have an optimus notebook.
 
To further verify, if you have the two VGA devices with one as Intel Integrated and other as NVIDIA, as root look for the /sys/kernel/debug/vgaswitcheroo/switch file. If it exists, then you have an optimus PC. If its missing, then you might not. (It might be that you have a card that nouveau can’t use yet because it is too new…)
 
== Before you get started ==
 
Most users will want to turn off “Secure boot” in the bios or UEFI screen when you need nvidia drivers or bbswitch-dkms. If you want to make your own public / private keys for kernel module signing you can look [https://docs.fedoraproject.org/en-US/Fedora/22/html/System_Administrators_Guide/sect-signing-kernel-module-with-the-private-key.html here] or [https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/sect-signing-kernel-modules-for-secure-boot.html here] for more information on the subject. If you end up doing that and use the closed source NVidia driver, you will need to edit the /etc/bumblebee/bumblebee-nvidia-sign.conf file.
 
Next, do a dnf update before you begin. And just to be safe, reboot your PC so that you are booted into the newest kernel. The reason for this is that you want the kernel-devel package to match the kernel you are running under. If you don’t reboot after a dnf update these versions may differ which will cause compiling problems.
 
== Installation ==
 
=== For free or open source solution ===
 
Some users [http://www.kroah.com/log/linux/stable_api_nonsense.html feel strongly] that they should not use closed source kernel modules. This is understandable. In all cases, [http://nouveau.freedesktop.org/wiki/Optimus/ PRIME] will work better then using bumblebee.
 


<pre># yum install VirtualGL </pre>
In fact, you can no longer use the bumblebee software with nouveau any longer even if you want to. See [https://github.com/Bumblebee-Project/Bumblebee/issues/773 issue 773] for further information about this subject. You '''MUST USE PRIME'''. The nouveau driver already handles power saving nowadays so bumblebee would just be superfluous…


If you want to run 32 bit apps on your 64 bit system, then also install:
=== For closed source solution ===


<pre># yum install VirtualGL.i686 </pre>
Do not use the NVidia video drivers from '''http://rpmfusion.org/''', '''http://negativo17.org/'''. I’m sure they are fine drivers and I am not trying to criticize them at all. But they '''DO NOT support or work''' with bumblebee without modifications. I have created a pair of drivers packages you may use that require no modifications to work. There is a managed version which contains a reasonably recent “long lived branch” driver blob. There is also a unmanaged repo which contains an empty drivers package. The unmanaged version requires you to download a “blob” from [http://www.nvidia.com/object/unix.html here] and then copy the file manually to the /etc/sysconfig/nvidia/ directory as root. You might need the “unmanaged” version if your laptop requires a “legacy” driver version or if you need the “short lived branch” driver for some reason. Do not install both the managed and unmanaged repos. You should pick one or the other depending on your needs. If you are unsure which to use, use the managed repo.
 
 
'''Special note concerning versions 355.11-375.10:'''
 
There is a bug which prevents certain versions from working with the unmanaged version of the bumblebee-nvidia shell script wrapper. I have opened a discussion thread
[https://devtalk.nvidia.com/default/topic/885657/linux/can-t-install-driver-to-work-with-bumblebee-with-version-355-11/ here] concerning this problem. See also [https://github.com/NVIDIA/nvidia-installer/issues/1 this issue] on github.com. If you use a version older then 355.11 or newer then 375.10 you should be ok. If you need one in between those you’ll have to patch and compile the nvidia-installer program yourself to get it to work. You’d need to disable the symlink check and the runtime check within the c code which is what we did for a while there with the “managed” version.
 
 
{{Template:Admon/tip|Be aware that:|You need to add the bumblebee repo from below (depending on what release you are on) '''and''' either the managed or unmanaged NVIDIA repo (depending on what release you are on).<br><br>If you only add the bumblebee repo you won't have the bumblebee-nvidia package and if you only add the NVIDIA repo, you'd get DNF/YUM error that nothing provides the bumblebee package, required by bumblebee-nvidia.}}
 
=== For closed source solution fedora ===
 
Add bumblebee repo:
 
<pre>
# dnf -y --nogpgcheck install http://install.linux.ncsu.edu/pub/yum/itecs/public/bumblebee/fedora$(rpm -E %fedora)/noarch/bumblebee-release-1.2-1.noarch.rpm
</pre>


== Install Bumblebee ==
Managed NVidia repo:
Install the Bumblebee yum repository


==== Fedora 20 ====
<pre>
<pre>
# yum -y --nogpgcheck install http://install.linux.ncsu.edu/pub/yum/itecs/public/bumblebee/fedora20/noarch/bumblebee-release-1.1-1.noarch.rpm
# dnf -y --nogpgcheck install http://install.linux.ncsu.edu/pub/yum/itecs/public/bumblebee-nonfree/fedora$(rpm -E %fedora)/noarch/bumblebee-nonfree-release-1.2-1.noarch.rpm
</pre>
</pre>


==== Fedora 21 ====
or Unmanaged NVidia repo:
 
<pre>
<pre>
# yum -y install http://install.linux.ncsu.edu/pub/yum/itecs/public/bumblebee/fedora21/noarch/bumblebee-release-1.2-1.noarch.rpm
# dnf -y --nogpgcheck install http://install.linux.ncsu.edu/pub/yum/itecs/public/bumblebee-nonfree-unmanaged/fedora$(rpm -E %fedora)/noarch/bumblebee-nonfree-unmanaged-release-1.2-1.noarch.rpm
</pre>
</pre>


==== Fedora 22 ====
'''Remember, you do not want to install both the managed and unmanaged repos. Pick one or the other but not both!
'''
 
No multilib fedora 23+:
 
<pre>
<pre>
# dnf -y install http://install.linux.ncsu.edu/pub/yum/itecs/public/bumblebee/fedora22/noarch/bumblebee-release-1.2-1.noarch.rpm
# dnf install bumblebee-nvidia bbswitch-dkms primus kernel-devel
</pre>
</pre>




==== Install Bumblebee: ====
Multilib on a 64 bit install fedora 23+: (You may need to add additional 32 bit packages to get your 32 bit applications to work with bumblebee/primus)
 
<pre>
<pre>
#yum -y install bbswitch bumblebee
# dnf install bumblebee-nvidia bbswitch-dkms VirtualGL.x86_64 VirtualGL.i686 primus.x86_64 primus.i686 kernel-devel
</pre>
</pre>


== Bumblebee with the NVIDIA proprietary drivers ==


The previous commands install bumbleblee with the nouveau drivers. If you want to install bumblebee with the NVIDIA proprietary drivers you must also follow these instructions:
You will need to reboot before you can test if its working. '''If you used the “unmanaged” repo don’t forget to copy the NVidia “blob” to /etc/sysconfig/nvidia/ before you reboot!''' Most folks will want the “managed” version rather then the “unmanaged” version.


Install the bumblebee-nonfree repository (the bumblebee-free repository is needed too):


==== Fedora 20 ====
== Using bumblebee software ==
 
'''General usage'''
 
<pre>
<pre>
#yum -y --nogpgcheck install http://install.linux.ncsu.edu/pub/yum/itecs/public/bumblebee-nonfree/fedora20/noarch/bumblebee-nonfree-release-1.1-1.noarch.rpm
$ optirun [options] application [application-parameters]
</pre>
</pre>
A potentially more up-to-date driver may be installed using the bumblebee-nonfree-shortlived repo:
 
For example, start a Windows applications with optimus named application.exe:
 
<pre>
<pre>
#yum -y --nogpgcheck install http://install.linux.ncsu.edu/pub/yum/itecs/public/bumblebee-nonfree-shortlived/fedora20/noarch/bumblebee-nonfree-shortlived-release-1.1-1.noarch.rpm
$ optirun wine application.exe
</pre>
</pre>


==== Fedora 21 ====
For another example, open NVidia settings panel with optimus:
 
<pre>
<pre>
#yum -y install http://install.linux.ncsu.edu/pub/yum/itecs/public/bumblebee-nonfree/fedora21/noarch/bumblebee-nonfree-release-1.2-1.noarch.rpm
$ optirun -b none nvidia-settings -c :8
</pre>
</pre>


==== Fedora 22 ====
For another example, open the java based Minecraft with primus bridge:
 
<pre>
<pre>
#dnf -y install http://install.linux.ncsu.edu/pub/yum/itecs/public/bumblebee-nonfree/fedora22/noarch/bumblebee-nonfree-release-1.2-1.noarch.rpm
$ optirun -b primus java -jar /PATH/TO/Minecraft.jar
</pre>
</pre>


Now install bumblebee-nvidia
For a list of the options for optirun, view its manual page:


==== Fedora 21 and older ====
<pre>
<pre>
#yum -y install bumblebee-nvidia
$ man optirun
</pre>
</pre>


==== Fedora 22 and later ====
In general, using the primus bridge gives better performance then using the default VirtualGL bridge. In bumblebee 4.0 (coming soon) primus will become the default bridge and VirtuaGL will need to be called explicitly if you still want it. Also beginning with bumblebee 4.0 (coming soon) the VirtuaGL dependency will be replaced with a primus dependency instead. So you might not even have VirtuaGL installed by default in the future.
 
For primus, there is a separate shell script you can use to invoke it called “primusrun.”
 
For a list of the options for primusrun, view its manual page:
 
<pre>
<pre>
# dnf -y install bumblebee-nvidia
$ man primusrun
</pre>
</pre>


"bumblebee-nvidia" is both a rpm package and a shell script. The "bumblebee-nvidia" package contains the shell "wrapper" script, init scripts to run it at bootup, and a SELinux security policy, and lastly a copy of the NVidia Linux binary driver "blob" downloaded from NVidia's UNIX drivers page. This is why the packages are so large compared to the bumblebee package.
<pre>
$ primusrun java -jar /PATH/TO/Minecraft.jar
</pre>


==== Reboot ====
and
Make your bumblebee works.


=== Testing Bumblebee ===
To verify you are now using the NVIDIA driver, run the glxgears demo (from mesa-demos):
<pre>
<pre>
optirun glxgears -info | grep "GL_VENDOR"
$ optirun -b primus java -jar /PATH/TO/Minecraft.jar
</pre>
</pre>
You should see some gears rotating.  In the terminal you should see "GL_VENDOR = NVIDIA Corporation" or something similar.


== Primus ==
are functionally equivalent commands.
For speed imrovements you can use primus. Primus is a shared library that provides OpenGL and GLX APIs and implements low-overhead local-only client-side OpenGL offloading via GLX forking, similar to VirtualGL. It intercepts GLX calls and redirects GL rendering to a secondary X display, presumably driven by a faster GPU. On swapping buffers, rendered contents are read back using a PBO and copied onto the drawable it was supposed to be rendered on in the first place. Currently primus requires the NVIDIA proprietary drivers.
 
It may become tedious to always use the optirun program in a terminal to launch 3D games or other 3D opengl applications. You may wish to create desktop launchers which use the optirun or primusrun commands in order to streamline this process.


Install primus:
For example, in MATE desktop environment, when you right click on an empty space in the desktop a popup menu is displayed. One option on this menu is “Create launcher..” which allows you to create a graphical launcher icon for your apps which can be left on the desktop or moved into some folder. Other desktop environments also offer this functionality though the methods differ from desktop to desktop.
<pre>#yum -y install primus </pre>


If you want to run 32 bit apps on your 64 bit system, then also install:
== Multi monitor setup with closed driver  ==
<pre>#yum -y install primus.i686</pre>


=== Testing primus ===
Optimus laptops have two video chips: an integrated Intel and a discrete NVidia one. If the port (DisplayPort / HDMI / VGA) is wired to the Intel chip, you do not need to do anything special to get external monitors to work.
Open up a terminal and run:
<pre>PRIMUS_VERBOSE=2 optirun -b primus glxgears -info</pre>
If primus is working properly, you should see "primus: profiling:" messages every so often in the terminal you ran it from.


== How to use Bumblebee ==
When the external port is wired into the NVidia chip, you cannot currently expand the screen over monitors without extra effort. Read on if you fall into this category…
 
Install the intel-gpu-tools package.


General Usage:
<pre>
<pre>
optirun [options] <application> [application-parameters]
# dnf install intel-gpu-tools
</pre>
</pre>


If you installed primus, then you can use the following command to take advantage of it:
Running ‘intel-virtual-output’ (from the intel-gpu-tools rpm) without any extra parameters will daemonize itself and detect attached displays in the background. It will then perform all the trickery of virtualizing and cloning so that the newly attached screen can be used via conventional screen management methods, such as cloning/extending with xrandr.
 
For example, if your laptop’s display is called eDP1, and your using a external adapter called HDMI1, and you wanted the display to be 1920×1080 resolution, you could run the following commands:
 
To have your HDMI screen to the right of your desktop, run:
 
<pre>
<pre>
optirun -b primus <application> [application-parameters]
$ xrandr –output eDP1 –mode 1920×1080 –output HDMI1 –mode 1920×1080 –right-of eDP1
</pre>
</pre>


Start Windows applications:
To clone your desktop, run:
 
<pre>
<pre>
optirun wine <windows application>.exe
$ xrandr –output eDP1 –mode 1920×1080 –output HDMI1 –mode 1920×1080 –same-as eDP1
</pre>
</pre>


with primus:
 
There are many different possibilities. Type xrandr with no arguments to see what displays you have attached. See [https://github.com/Bumblebee-Project/Bumblebee/wiki/Multi-monitor-setup this web page] for further information on this subject. Read the manual page for xrandr for even more information on the possibilities this command provides.
 
If intel-virtual-output works ok running by hand you could add it to your startup automatically if you desire. One way would be to create a /etc/rc.d/rc.local script and add it into there. Another way might be to create a systemd unit file as Type=oneshot. A third way might be to run it at login using whatever mechanism your desktop environment supports for doing such things. For example, in MATE desktop environment, there is a mate-session-properties program (System -> Preferences -> Personal -> Startup Applications) that you can run programs from when you login. Most desktop environments offer similar functionality though the methods differ from desktop to desktop.
 
== Troubleshooting ==
 
When you are using the closed source NVidia drivers, there is a checking system you can run. To test, type this command:
 
<pre>
<pre>
optirun -b primus wine <windows application>.exe
$ bumblebee-nvidia --check
</pre>
</pre>


By default, primus renders up to 60 fps. To render more frames per second:
This will tell you if the NVidia driver and bbswitch-dkms compiled into the current kernel ok. It works with both the managed and unmanaged driver packages.
 
Some other errors you may encounter form the output from bumblebee-nvidia –check
 
<pre>
<pre>
vblank_mode=0 optirun -b primus <application> [application-parameters]
Error: Too many NVidia blobs in /etc/sysconfig/nvidia/
Blob count = 2.
</pre>
</pre>
In practice this will probably only waste power, as most screens do not display more than 60 frames per second.


You can always run "man optirun" for more information.
This means that there are too many NVidia “blobs” in /etc/sysconfig/nvidia/ and the solution is to delete one of them.


== Troubleshooting ==
<pre>
Error: No Nvidia blob in /etc/sysconfig/nvidia/
</pre>
 
This means there is no blob in /etc/sysconfig/nvidia/ and you should copy one there if using the unmanaged repo or re-install bumblebee-nvidia if using the managed repo. (dnf reinstall bumblebee-nvidia)
 
If the module did not compile, you can run:
<pre>
# bumblebee-nvidia --debug
</pre>
 
as root or via sudo. This may give you clues as to why the nvidia installer was unable to work.


=== Unable to use optirun with nouveau ===
Type


In some cases, users on post Linux 3.4 kernels are unable to use bumblebee with nouveau.
One less then optimal workaround is to not use optirun and instead request that the window
be drawn using the primary or secondary graphics cards/drivers.  This can be achieved
using the following:
<pre>
<pre>
[user1@localhost ~]$ DRI_PRIME=0 glxgears -info | grep "GL_VENDOR"
$ bumblebee-nvidia --help
[user1@localhost ~]$ DRI_PRIME=1 glxgears -info | grep "GL_VENDOR"
</pre>
</pre>
These two commands should produce the demonstration gears and the driver vendor (often Intel and
nouveau) in the terminal.  For more information see (https://bugzilla.redhat.com/show_bug.cgi?id=964012).


=== Unable to load (NVIDIA) GPU driver error with optirun ===
to see a full list of options the wrapper script provides.
Most of the information presented here was suggested by bumblebee maintainer Gary Gatling.  
 
If you see this error:


The verbose output of optirun provided by appending the switch -vv can give us an idea of the issue at hand.
<pre>
<pre>
[user1@localhost ~]$optirun -vv vlc
[ERROR]You've no permission to communicate with the Bumblebee daemon. Try adding yourself to the 'bumblebee' group
[  52.410461] [DEBUG]Reading file: /etc/bumblebee/bumblebee.conf
[ERROR]Could not connect to bumblebee daemon - is it running?
[   52.411039] [INFO]Configured driver: nvidia
</pre>
[  52.411659] [DEBUG]optirun version 3.2.1 starting...
[  52.411716] [DEBUG]Active configuration:
[  52.411745] [DEBUG] bumblebeed config file: /etc/bumblebee/bumblebee.conf
[  52.411765] [DEBUG] X display: :8
[  52.411785] [DEBUG] LD_LIBRARY_PATH: /usr/lib64/nvidia-bumblebee:/usr/lib/nvidia-bumblebee:/usr/lib64:/usr/lib
[  52.411805] [DEBUG] Socket path: /var/run/bumblebee.socket
[  52.411826] [DEBUG] Accel/display bridge: auto
[  52.411847] [DEBUG] VGL Compression: proxy
[  52.411868] [DEBUG] VGLrun extra options:
[  52.411886] [DEBUG] Primus LD Path: /usr/lib/primus:/usr/lib64/primus
[  52.411939] [DEBUG]Using auto-detected bridge virtualgl
[  52.434739] [INFO]Response: No - error: Could not load GPU driver


[  52.434758] [ERROR]Cannot access secondary GPU - error: Could not load GPU driver
It could be caused by adding another user account to your notebook after you have already installed the various bumblebee packages. The solution is to run:


[  52.434763] [DEBUG]Socket closed.
<pre>
[  52.434781] [ERROR]Aborting because fallback start is disabled.
# usermod -a -G bumblebee USERNAME
[  52.434787] [DEBUG]Killing all remaining processes.
</pre>
</pre>
When you upgrade from one version of nvidia binary to higher version of the module, sometimes the un-install phase is not complete and in that case this following suggestion should help.


1. First unload the nvidia module by logging in as root in a terminal. Terminal output of ''cat /proc/acpi/bbswitch'' should be ''OFF'' after this step.
where '''USERNAME''' is your account name to add to the bumblebee group. You MUST be in the bumblebee group for primusrun or optirun to work.
<pre>systemctl restart bumblebeed </pre>
 
2. Uninstall the nvidia module
'''Primusrun mouse delay/disable VSYNC'''
<pre>/usr/sbin/bumblebee-nvidia --debug --uninstall
 
For primusrun, VSYNC is enabled by default and as a result, it could make mouse input delay lag or even slightly decrease performance. Test primusrun without VSYNC:
 
<pre>
$ vblank_mode=0 primusrun glxgears
</pre>
</pre>
3. modinfo nvidia probably gives you an output similar to this
 
<pre>[root@localhost ~]# modinfo nvidia
'''Primus issues under compositing window managers'''
filename:      /lib/modules/3.11.8-300.fc20.x86_64/kernel/drivers/video/nvidia.ko
 
modinfo: ERROR: could not get modinfo from 'nvidia': No such file or directory
Since compositing hurts performance, invoking primus when a compositing WM is active is [https://github.com/amonakov/primus#issues-under-compositing-wms not recommended]. If you need to use primus with compositing and see flickering or bad performance, synchronizing primus’ display thread with the application’s rendering thread may help:
 
<pre>
$ PRIMUS_SYNC=1 primusrun ...
</pre>
</pre>
4. Prepare to compile the nvidia driver at restart for the current kernel and reboot the system
<pre>[root@localhost ~]# touch /etc/sysconfig/nvidia/compile-nvidia-driver
[root@localhost ~]# reboot


'''optirun crashes after you boot into “Troubleshooting -> Start Fedora Live in basic graphics mode” and do an install that way.'''
If you did an install under “Troubleshooting -> Start Fedora Live in basic graphics mode.” bumblebee will not work. You can tell by examining the /var/log/Xorg.8.log log file and looking for Kernel command line: and seeing nomodeset on that line. When you use “Start Fedora Live in basic graphics mode.” it adds “nomodeset” to your kernel command line which will cause your machine to use the VESA driver and make bumblebee not work. (It will just crash when you try) To fix that, edit /etc/default/grub and on the GRUB_CMDLINE_LINUX= line, remove the word nomodeset and then save the file, next, either run
<pre>
# grub2-mkconfig -o /boot/grub2/grub.cfg
</pre>
</pre>
5. Post reboot should give the modinfo output something similar to this and you should be able to use optirun as intended.
<pre>@localhost ~]$ modinfo nvidia
filename:      /lib/modules/3.11.8-300.fc20.x86_64/kernel/drivers/video/nvidia.ko
alias:          char-major-195-*
version:        331.20
supported:      external
license:        NVIDIA
alias:          pci:v000010DEd00000E00sv*sd*bc04sc80i00*
alias:          pci:v000010DEd00000AA3sv*sd*bc0Bsc40i00*
alias:          pci:v000010DEd*sv*sd*bc03sc02i00*
alias:          pci:v000010DEd*sv*sd*bc03sc00i00*
depends:        drm,i2c-core
vermagic:      3.11.8-300.fc20.x86_64 SMP mod_unload
parm:          NVreg_Mobile:int
parm:          NVreg_ResmanDebugLevel:int
parm:          NVreg_RmLogonRC:int
parm:          NVreg_ModifyDeviceFiles:int
parm:          NVreg_DeviceFileUID:int
parm:          NVreg_DeviceFileGID:int
parm:          NVreg_DeviceFileMode:int
parm:          NVreg_RemapLimit:int
parm:          NVreg_UpdateMemoryTypes:int
parm:          NVreg_InitializeSystemMemoryAllocations:int
parm:          NVreg_RMEdgeIntrCheck:int
parm:          NVreg_UsePageAttributeTable:int
parm:          NVreg_MapRegistersEarly:int
parm:          NVreg_RegisterForACPIEvents:int
parm:          NVreg_CheckPCIConfigSpace:int
parm:          NVreg_EnablePCIeGen3:int
parm:          NVreg_EnableMSI:int
parm:          NVreg_MemoryPoolSize:int
parm:          NVreg_RegistryDwords:charp
parm:          NVreg_RmMsg:charp.
parm:          NVreg_AssignGpus:charp</pre>


Make sure your nvidia module is unloaded when you do this steps. For some repeating the steps a couple of times was necessary.
on a BIOS based notebook or
 
<pre>
# grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
</pre>
 
on a UEFI based notebook. Then reboot. After that bumblebee/optirun/primusrun should start working.
 
== Compatibility with recent laptops that have American Megatrend BIOSes ==
 
Some recent laptop models featuring AMI bioses have some compatibility issues with bbswitch and Optimus, making them unable to load into graphics mode and crashing every time it is attempted, as discussed in further details in this post on the Bumblebee's github: https://github.com/Bumblebee-Project/Bumblebee/issues/764#issuecomment-234494238 .
 
If you are trying to use Linux on a recent Optimus laptop and it crashes every time you try to enter a graphics environment, please try adding the following parameters to your boot loader (Fedora users usually have GRUB installed):
 
<pre>
acpi_osi=! acpi_osi='Windows 2009'
</pre>
 
This seems to work on most laptop models facing this issue, but bear in mind that this workaround has not been tested in every laptop model ever made – so your mileage may vary. If the problems persist, you could try updating your BIOS or look for more info in the Bumblebee documentation and their community.
 
== Broken power management with kernel 4.8 ==
 
If you have a newer laptop (BIOS date 2015 or newer), then Linux 4.8 might break bbswitch since bbswitch does not support the newer, recommended power management method. As a result, the dGPU may fail to power on, fail to power off or worse.
 
See [https://github.com/Bumblebee-Project/bbswitch/issues/140 Issue 140] for further information about this problem.
 
As a workaround, add pcie_port_pm=off to your kernel parameters.
 
Alternatively, if you are only interested in power saving (and perhaps use of external monitors), remove bumblebee / bbswitch and rely on Nouveau runtime power-management (which supports the new method).
 
== mesa-13.0.3-6 and libglvnd issues ==
 
In fedora 25 and 26 a new library called libglvnd was added which initially caused some issues.
 
primus-1.1.03282015-4 and newer, bumblebee-3.2.1-13 and newer, and (managed version) bumblebee-nvidia-375.26-2 and newer, and (un-managed version) bumblebee-nvidia-3.0-2 and newer will work with the newer mesa and new libglvnd library.
 
When you first upgrade to mesa-13.0.3-6 or newer bumblebee-nvidia doesn't know that it needs to rebuild the shim. So you can force that by running the command:
 
<pre>
bumblebee-nvidia --force
</pre>
 
 
via su as root or via sudo. And the primus bridge  should work after that. You can track this issue upstream [https://github.com/amonakov/primus/issues/193 here].


== Useful links ==
== Useful links ==
* http://techies.ncsu.edu/wiki/bumblebee
 
* http://bumblebee-project.org/
* http://bumblebee-project.org/
* https://github.com/Bumblebee-Project/Bumblebee/wiki
* https://github.com/Bumblebee-Project/Bumblebee/wiki
* https://github.com/Bumblebee-Project/Bumblebee/
* https://github.com/Bumblebee-Project/bbswitch
* https://github.com/amonakov/primus
* https://www.linux.ncsu.edu/bumblebee/
[http://www.thelinuxrain.com/articles/the-state-of-nvidia-optimus-on-linux The State of NVIDIA Optimus on Linux]

Revision as of 15:00, 19 August 2017

Description

Nvidia Optimus is an optimization technology created by Nvidia which, depending on the resource load generated by client software applications, will transparently and seamlessly switch between two graphics adapters within a computer system in order to provide either maximum performance or minimum power draw from the system's graphics rendering hardware. From Bumblebee's FAQ: Bumblebee is a effort to make Nvidia Optimus enabled laptops work in GNU/Linux systems. Such feature involves two graphics cards with two different power consumption profiles plugged in a layered way sharing a single framebuffer.

The discrete GPU (NVidia) is turned off when not in use and activated and turned on though ACPI calls when demanding OpenGL applications require the extra power the discrete GPU can give. Demanding OpenGL applications might include such things as 3D games or 3D rendering software but would not include such things as a web browser or a video playback program like mplayer or VLC.

How can you tell if you have an optimus notebook computer?

If you purchased a notebook with an NVidia sticker on it, you might have a optimus computer. If you don’t have an optimus technology computer nothing in this documentation is relevant to your PC. (Optimus was slated at one point to go in desktop PCs but the industry ended up rejecting that concept…)

To tell, after you have installed the OS, open a terminal window and type:

$ lspci | grep 'VGA\|3D'

If you see two video cards in the output like:

$ lspci | grep 'VGA\|3D'
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
02:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 940MX] (rev a2)

And one is a Intel “Integrated Graphics Controller” and the other is a “NVIDIA Corporation” chip, then you probably have an optimus notebook.

To further verify, if you have the two VGA devices with one as Intel Integrated and other as NVIDIA, as root look for the /sys/kernel/debug/vgaswitcheroo/switch file. If it exists, then you have an optimus PC. If its missing, then you might not. (It might be that you have a card that nouveau can’t use yet because it is too new…)

Before you get started

Most users will want to turn off “Secure boot” in the bios or UEFI screen when you need nvidia drivers or bbswitch-dkms. If you want to make your own public / private keys for kernel module signing you can look here or here for more information on the subject. If you end up doing that and use the closed source NVidia driver, you will need to edit the /etc/bumblebee/bumblebee-nvidia-sign.conf file.

Next, do a dnf update before you begin. And just to be safe, reboot your PC so that you are booted into the newest kernel. The reason for this is that you want the kernel-devel package to match the kernel you are running under. If you don’t reboot after a dnf update these versions may differ which will cause compiling problems.

Installation

For free or open source solution

Some users feel strongly that they should not use closed source kernel modules. This is understandable. In all cases, PRIME will work better then using bumblebee.


In fact, you can no longer use the bumblebee software with nouveau any longer even if you want to. See issue 773 for further information about this subject. You MUST USE PRIME. The nouveau driver already handles power saving nowadays so bumblebee would just be superfluous…

For closed source solution

Do not use the NVidia video drivers from http://rpmfusion.org/, http://negativo17.org/. I’m sure they are fine drivers and I am not trying to criticize them at all. But they DO NOT support or work with bumblebee without modifications. I have created a pair of drivers packages you may use that require no modifications to work. There is a managed version which contains a reasonably recent “long lived branch” driver blob. There is also a unmanaged repo which contains an empty drivers package. The unmanaged version requires you to download a “blob” from here and then copy the file manually to the /etc/sysconfig/nvidia/ directory as root. You might need the “unmanaged” version if your laptop requires a “legacy” driver version or if you need the “short lived branch” driver for some reason. Do not install both the managed and unmanaged repos. You should pick one or the other depending on your needs. If you are unsure which to use, use the managed repo.


Special note concerning versions 355.11-375.10:

There is a bug which prevents certain versions from working with the unmanaged version of the bumblebee-nvidia shell script wrapper. I have opened a discussion thread here concerning this problem. See also this issue on github.com. If you use a version older then 355.11 or newer then 375.10 you should be ok. If you need one in between those you’ll have to patch and compile the nvidia-installer program yourself to get it to work. You’d need to disable the symlink check and the runtime check within the c code which is what we did for a while there with the “managed” version.


Idea.png
Be aware that:
You need to add the bumblebee repo from below (depending on what release you are on) and either the managed or unmanaged NVIDIA repo (depending on what release you are on).

If you only add the bumblebee repo you won't have the bumblebee-nvidia package and if you only add the NVIDIA repo, you'd get DNF/YUM error that nothing provides the bumblebee package, required by bumblebee-nvidia.

For closed source solution fedora

Add bumblebee repo:

# dnf -y --nogpgcheck install http://install.linux.ncsu.edu/pub/yum/itecs/public/bumblebee/fedora$(rpm -E %fedora)/noarch/bumblebee-release-1.2-1.noarch.rpm

Managed NVidia repo:

# dnf -y --nogpgcheck install http://install.linux.ncsu.edu/pub/yum/itecs/public/bumblebee-nonfree/fedora$(rpm -E %fedora)/noarch/bumblebee-nonfree-release-1.2-1.noarch.rpm

or Unmanaged NVidia repo:

# dnf -y --nogpgcheck install http://install.linux.ncsu.edu/pub/yum/itecs/public/bumblebee-nonfree-unmanaged/fedora$(rpm -E %fedora)/noarch/bumblebee-nonfree-unmanaged-release-1.2-1.noarch.rpm

Remember, you do not want to install both the managed and unmanaged repos. Pick one or the other but not both!

No multilib fedora 23+:

# dnf install bumblebee-nvidia bbswitch-dkms primus kernel-devel


Multilib on a 64 bit install fedora 23+: (You may need to add additional 32 bit packages to get your 32 bit applications to work with bumblebee/primus)

# dnf install bumblebee-nvidia bbswitch-dkms VirtualGL.x86_64 VirtualGL.i686 primus.x86_64 primus.i686 kernel-devel


You will need to reboot before you can test if its working. If you used the “unmanaged” repo don’t forget to copy the NVidia “blob” to /etc/sysconfig/nvidia/ before you reboot! Most folks will want the “managed” version rather then the “unmanaged” version.


Using bumblebee software

General usage

$ optirun [options] application [application-parameters]

For example, start a Windows applications with optimus named application.exe:

$ optirun wine application.exe

For another example, open NVidia settings panel with optimus:

$ optirun -b none nvidia-settings -c :8

For another example, open the java based Minecraft with primus bridge:

$ optirun -b primus java -jar /PATH/TO/Minecraft.jar

For a list of the options for optirun, view its manual page:

$ man optirun

In general, using the primus bridge gives better performance then using the default VirtualGL bridge. In bumblebee 4.0 (coming soon) primus will become the default bridge and VirtuaGL will need to be called explicitly if you still want it. Also beginning with bumblebee 4.0 (coming soon) the VirtuaGL dependency will be replaced with a primus dependency instead. So you might not even have VirtuaGL installed by default in the future.

For primus, there is a separate shell script you can use to invoke it called “primusrun.”

For a list of the options for primusrun, view its manual page:

$ man primusrun
$ primusrun java -jar /PATH/TO/Minecraft.jar

and

$ optirun -b primus java -jar /PATH/TO/Minecraft.jar

are functionally equivalent commands.

It may become tedious to always use the optirun program in a terminal to launch 3D games or other 3D opengl applications. You may wish to create desktop launchers which use the optirun or primusrun commands in order to streamline this process.

For example, in MATE desktop environment, when you right click on an empty space in the desktop a popup menu is displayed. One option on this menu is “Create launcher..” which allows you to create a graphical launcher icon for your apps which can be left on the desktop or moved into some folder. Other desktop environments also offer this functionality though the methods differ from desktop to desktop.

Multi monitor setup with closed driver

Optimus laptops have two video chips: an integrated Intel and a discrete NVidia one. If the port (DisplayPort / HDMI / VGA) is wired to the Intel chip, you do not need to do anything special to get external monitors to work.

When the external port is wired into the NVidia chip, you cannot currently expand the screen over monitors without extra effort. Read on if you fall into this category…

Install the intel-gpu-tools package.

# dnf install intel-gpu-tools

Running ‘intel-virtual-output’ (from the intel-gpu-tools rpm) without any extra parameters will daemonize itself and detect attached displays in the background. It will then perform all the trickery of virtualizing and cloning so that the newly attached screen can be used via conventional screen management methods, such as cloning/extending with xrandr.

For example, if your laptop’s display is called eDP1, and your using a external adapter called HDMI1, and you wanted the display to be 1920×1080 resolution, you could run the following commands:

To have your HDMI screen to the right of your desktop, run:

$ xrandr –output eDP1 –mode 1920×1080 –output HDMI1 –mode 1920×1080 –right-of eDP1

To clone your desktop, run:

$ xrandr –output eDP1 –mode 1920×1080 –output HDMI1 –mode 1920×1080 –same-as eDP1


There are many different possibilities. Type xrandr with no arguments to see what displays you have attached. See this web page for further information on this subject. Read the manual page for xrandr for even more information on the possibilities this command provides.

If intel-virtual-output works ok running by hand you could add it to your startup automatically if you desire. One way would be to create a /etc/rc.d/rc.local script and add it into there. Another way might be to create a systemd unit file as Type=oneshot. A third way might be to run it at login using whatever mechanism your desktop environment supports for doing such things. For example, in MATE desktop environment, there is a mate-session-properties program (System -> Preferences -> Personal -> Startup Applications) that you can run programs from when you login. Most desktop environments offer similar functionality though the methods differ from desktop to desktop.

Troubleshooting

When you are using the closed source NVidia drivers, there is a checking system you can run. To test, type this command:

$ bumblebee-nvidia --check

This will tell you if the NVidia driver and bbswitch-dkms compiled into the current kernel ok. It works with both the managed and unmanaged driver packages.

Some other errors you may encounter form the output from bumblebee-nvidia –check

Error: Too many NVidia blobs in /etc/sysconfig/nvidia/
Blob count = 2.

This means that there are too many NVidia “blobs” in /etc/sysconfig/nvidia/ and the solution is to delete one of them.

Error: No Nvidia blob in /etc/sysconfig/nvidia/

This means there is no blob in /etc/sysconfig/nvidia/ and you should copy one there if using the unmanaged repo or re-install bumblebee-nvidia if using the managed repo. (dnf reinstall bumblebee-nvidia)

If the module did not compile, you can run:

# bumblebee-nvidia --debug

as root or via sudo. This may give you clues as to why the nvidia installer was unable to work.

Type

$ bumblebee-nvidia --help

to see a full list of options the wrapper script provides.

If you see this error:

[ERROR]You've no permission to communicate with the Bumblebee daemon. Try adding yourself to the 'bumblebee' group
[ERROR]Could not connect to bumblebee daemon - is it running?

It could be caused by adding another user account to your notebook after you have already installed the various bumblebee packages. The solution is to run:

# usermod -a -G bumblebee USERNAME

where USERNAME is your account name to add to the bumblebee group. You MUST be in the bumblebee group for primusrun or optirun to work.

Primusrun mouse delay/disable VSYNC

For primusrun, VSYNC is enabled by default and as a result, it could make mouse input delay lag or even slightly decrease performance. Test primusrun without VSYNC:

$ vblank_mode=0 primusrun glxgears

Primus issues under compositing window managers

Since compositing hurts performance, invoking primus when a compositing WM is active is not recommended. If you need to use primus with compositing and see flickering or bad performance, synchronizing primus’ display thread with the application’s rendering thread may help:

$ PRIMUS_SYNC=1 primusrun ...

optirun crashes after you boot into “Troubleshooting -> Start Fedora Live in basic graphics mode” and do an install that way.

If you did an install under “Troubleshooting -> Start Fedora Live in basic graphics mode.” bumblebee will not work. You can tell by examining the /var/log/Xorg.8.log log file and looking for Kernel command line: and seeing nomodeset on that line. When you use “Start Fedora Live in basic graphics mode.” it adds “nomodeset” to your kernel command line which will cause your machine to use the VESA driver and make bumblebee not work. (It will just crash when you try) To fix that, edit /etc/default/grub and on the GRUB_CMDLINE_LINUX= line, remove the word nomodeset and then save the file, next, either run

# grub2-mkconfig -o /boot/grub2/grub.cfg

on a BIOS based notebook or

# grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg

on a UEFI based notebook. Then reboot. After that bumblebee/optirun/primusrun should start working.

Compatibility with recent laptops that have American Megatrend BIOSes

Some recent laptop models featuring AMI bioses have some compatibility issues with bbswitch and Optimus, making them unable to load into graphics mode and crashing every time it is attempted, as discussed in further details in this post on the Bumblebee's github: https://github.com/Bumblebee-Project/Bumblebee/issues/764#issuecomment-234494238 .

If you are trying to use Linux on a recent Optimus laptop and it crashes every time you try to enter a graphics environment, please try adding the following parameters to your boot loader (Fedora users usually have GRUB installed):

acpi_osi=! acpi_osi='Windows 2009'

This seems to work on most laptop models facing this issue, but bear in mind that this workaround has not been tested in every laptop model ever made – so your mileage may vary. If the problems persist, you could try updating your BIOS or look for more info in the Bumblebee documentation and their community.

Broken power management with kernel 4.8

If you have a newer laptop (BIOS date 2015 or newer), then Linux 4.8 might break bbswitch since bbswitch does not support the newer, recommended power management method. As a result, the dGPU may fail to power on, fail to power off or worse.

See Issue 140 for further information about this problem.

As a workaround, add pcie_port_pm=off to your kernel parameters.

Alternatively, if you are only interested in power saving (and perhaps use of external monitors), remove bumblebee / bbswitch and rely on Nouveau runtime power-management (which supports the new method).

mesa-13.0.3-6 and libglvnd issues

In fedora 25 and 26 a new library called libglvnd was added which initially caused some issues.

primus-1.1.03282015-4 and newer, bumblebee-3.2.1-13 and newer, and (managed version) bumblebee-nvidia-375.26-2 and newer, and (un-managed version) bumblebee-nvidia-3.0-2 and newer will work with the newer mesa and new libglvnd library.

When you first upgrade to mesa-13.0.3-6 or newer bumblebee-nvidia doesn't know that it needs to rebuild the shim. So you can force that by running the command:

bumblebee-nvidia --force


via su as root or via sudo. And the primus bridge should work after that. You can track this issue upstream here.

Useful links

The State of NVIDIA Optimus on Linux