From Fedora Project Wiki


This test case tests whether fast user switching work successfully with the intel video driver. You must be using a video adapter supported by the intel driver.


  1. Ensure the nomodeset and i915.modeset=0 kernel parameters are not set in your bootloader configuration
    • You can see your current kernel options by running cat /proc/cmdline
  2. Ensure the file /etc/X11/xorg.conf does not exist, or is a valid file that uses the intel driver
  3. Shut your system down entirely, then start it up again
  4. If using a live image to test, ignore the above steps and simply boot the system from the live image with default options
  5. Create a second regular user account, if you do not already have one available. If you are using a live image, either change the password of the 'liveuser' user to something you can use, or create two regular user accounts to test with, then log in as the first

How to test

  1. Trigger fast switching (in a default Fedora desktop, click the system menu at the top right hand corner, click your user name, then select Switch User)
  2. Log in with the second user account
  3. Test switching from one account to the other and back again, with both logged in
  4. Check the GLX and Xv test cases on both logins

Expected Results

  1. Fast user switching should work correctly, with no display issues on either desktop
  2. Accelerated OpenGL apps and video playback should work on both desktops when two logins are active