|Summary:||Some games hang while loading when compositing is shut off or absent|
|Product:||Mesa||Reporter:||Logan Hanning <honestdolus>|
|Component:||Drivers/Gallium/radeonsi||Assignee:||Default DRI bug account <dri-devel>|
|Status:||RESOLVED FIXED||QA Contact:||Default DRI bug account <dri-devel>|
|i915 platform:||i915 features:|
Description Logan Hanning 2017-07-04 00:14:04 UTC
Created attachment 132420 [details] glxinfo output Recently, several games have been lock up during loading at one point or another. You can get the game to continue loading by hitting ALT-TAB or going into something like the Activites screen in Gnome Shell. It seems that this only happens when compositing is absent or shut off. Also, as far as I have been able to tell, this only when the game is using an older version of OpenGL. Card: RX 480 Driver: Mesa 17.1.3
Comment 1 Logan Hanning 2017-07-04 00:24:28 UTC
I should have mentioned that this also only happens to games running in fullscreen.
Comment 2 Shmerl 2017-07-04 00:34:29 UTC
Please list some examples of games / engines. I encountered something like this with Jedi Academy. See: https://github.com/JACoders/OpenJK/issues/921
Comment 3 Logan Hanning 2017-07-04 00:52:42 UTC
Games/engines this happens in: Arx Fatalix running in Arx Libertatis Warzone2100 OpenJK (as mentioned) ResidualVM Ur Quan Masters
Comment 4 Michel Dänzer 2017-07-04 02:20:16 UTC
I'm able to reproduce the problem with Warzone2100, looks like a DRI3 related issue. One of the DRI3 fixes Thomas Hellström has been working on might help. Meanwhile, you can work around that one by disabling DRI3 for the game: LIBGL_DRI3_DISABLE=1 warzone2100 AFAICT this already happened with Mesa 13 though, so you might be running into different issues with other games. When a game hangs, attach gdb to its process, run thread apply all bt full and attach the output here.
Comment 5 Logan Hanning 2017-07-04 03:14:32 UTC
(In reply to Michel Dänzer from comment #4) > I'm able to reproduce the problem with Warzone2100, looks like a DRI3 > related issue. One of the DRI3 fixes Thomas Hellström has been working on > might help. Meanwhile, you can work around that one by disabling DRI3 for > the game: > > LIBGL_DRI3_DISABLE=1 warzone2100 Disabling DRI3 also clears up the problem with Arx Libertatis. I'll be able to test more in depth later.
Comment 6 Michel Dänzer 2017-07-04 07:45:02 UTC
The patch I just attached to bug 97957 fixes the Warzone2100 hangs for me as well.
Comment 7 Michel Dänzer 2017-07-13 08:22:39 UTC
Thanks for the report, should be at least mostly fixed in Git. If there's still an issue with a game, please file a new report for that. Module: Mesa Branch: master Commit: 81fb1547772d42c527318837d4207ecdb6899e5d URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=81fb1547772d42c527318837d4207ecdb6899e5d Author: Thomas Hellstrom <email@example.com> Date: Tue Jul 4 12:55:15 2017 +0900 loader/dri3: Use dri3_find_back in loader_dri3_swap_buffers_msc