< Changes
(Change accepted on 2015-01-28 FESCo meeting) |
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== Current status == | == Current status == | ||
* Targeted release: [[Releases/22 | Fedora 22 ]] | * Targeted release: [[Releases/22 | Fedora 22 ]] | ||
* Last updated: | * Last updated: 17 Feb 2015 | ||
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CLOSED as NEXTRELEASE -> change is completed and verified and will be delivered in next release under development | CLOSED as NEXTRELEASE -> change is completed and verified and will be delivered in next release under development | ||
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* Tracker bug: | * Tracker bug: [https://bugzilla.redhat.com/show_bug.cgi?id=1191060 #1191060] | ||
This mostly in place now. GDM starts the login screen on wayland, but will fallback to Xorg if wayland doesn't work. | |||
== Detailed Description == | == Detailed Description == | ||
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** Change GDM to not start an X server at startup, instead run the login screen in Wayland mode | ** Change GDM to not start an X server at startup, instead run the login screen in Wayland mode | ||
** Change X based user sessions to run on their own VT, since they can no longer piggyback off the login screen VT | ** Change X based user sessions to run on their own VT, since they can no longer piggyback off the login screen VT | ||
** Come up with some answer for proprietary Nvidia driver users, since that stack doesn't yet support Wayland. One idea is to force the login session to | ** Come up with some answer for proprietary Nvidia driver users, since that stack doesn't yet support Wayland. One idea is to force the login session to fallback to using X. | ||
* Other developers: We may need to get the mesa maintainer involved as part of a proprietary Nvidia driver handling, but also might not need to pending investigation. | * Other developers: We may need to get the mesa maintainer involved as part of a proprietary Nvidia driver handling, but also might not need to pending investigation. | ||
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== User Experience == | == User Experience == | ||
Should not have a noticeable impact in user experience | Should not have a noticeable impact in user experience | ||
*see: https://bugzilla.redhat.com/show_bug.cgi?id=1691918 | |||
*see: https://bugzilla.redhat.com/show_bug.cgi?id=1691909 | |||
== Dependencies == | == Dependencies == | ||
Latest revision as of 01:54, 23 March 2019
Login Screen Over Wayland
Summary
Change the Login screen that GDM uses to run on Wayland instead of X.
Owner
- Name: Ray Strode
- Email: rstrode@redhat.com
- Release notes owner:
Current status
This mostly in place now. GDM starts the login screen on wayland, but will fallback to Xorg if wayland doesn't work.
Detailed Description
At the moment, a user can choose to log in to a Wayland session from the login screen, but the login screen itself always runs on top of X. The point of this change is to change that, and make the login screen always run on a Wayland session.
Benefit to Fedora
Fedora is steadily progressing toward the goal of replacing X uses with Wayland based uses instead. This is one step toward achieving that goal. The login session is sufficiently isolated and contained, that it makes an ideal first place to put Wayland by default. There should be little to no user visible impact with this change. Ideally the user won't be able to tell the difference between the login screen running on X versus the login screen running on Wayland.
Scope
- Proposal owners: The main things that need be accomplished are:
- Change GDM to not start an X server at startup, instead run the login screen in Wayland mode
- Change X based user sessions to run on their own VT, since they can no longer piggyback off the login screen VT
- Come up with some answer for proprietary Nvidia driver users, since that stack doesn't yet support Wayland. One idea is to force the login session to fallback to using X.
- Other developers: We may need to get the mesa maintainer involved as part of a proprietary Nvidia driver handling, but also might not need to pending investigation.
- Release engineering: This change doesn't affect release workflow
- Policies and guidelines: This change doesn't affect packaging guidelines
Upgrade/compatibility impact
Shouldn't impact upgrades
How To Test
- Boot machine
- Ensure graphical login screen comes up
- Jump to VT 6 and log in at console
- Run "ps -ef | grep Xorg" and ensure Xorg isn't running
- Return to VT 1
- Try to log into a "GNOME" session
- Log out
- Try to log into a "GNOME Wayland" session
- Log out
Steps 5 through 8 make sure that login screen is still able to log into user sessions.
User Experience
Should not have a noticeable impact in user experience
- see: https://bugzilla.redhat.com/show_bug.cgi?id=1691918
- see: https://bugzilla.redhat.com/show_bug.cgi?id=1691909
Dependencies
Might require changes to mesa packaging, but that's not known for sure yet.
Contingency Plan
- Contingency mechanism: Revert to existing mechanism of login screen on Xorg
- Contingency deadline: Beta Freeze
- Blocks release? No
- Blocks product? No
Documentation
No upstream documentation or bug links yet