Bug 106536 - glXWaitVideoSyncSGI blocks forever
Summary: glXWaitVideoSyncSGI blocks forever
Status: RESOLVED MOVED
Alias: None
Product: Mesa
Classification: Unclassified
Component: GLX (show other bugs)
Version: 18.0
Hardware: Other All
: medium normal
Assignee: mesa-dev
QA Contact: mesa-dev
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-05-16 06:25 UTC by Geoffrey McRae
Modified: 2019-09-18 17:45 UTC (History)
0 users

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Description Geoffrey McRae 2018-05-16 06:25:49 UTC 
Before mesa 18.0 glXWaitVideoSyncSGI worked perfectly, but after updating to mesa 18 it blocks forever, see the following for the code exhibiting this behavior.

https://github.com/gnif/LookingGlass/blob/da2bcfdf9a3d559928a450cfc4642e8635c8f71f/client/renderers/opengl.c#L433

We have seen this occur on AMD hardware, I personally can reproduce it on a Vega 56. It may affect other platforms but I can not confirm.
Comment 1 Michel Dänzer 2018-05-16 06:59:49 UTC 
Please attach a backtrace of the app when it hangs, and the corresponding Xorg log file.
Comment 2 GitLab Migration User 2019-09-18 17:45:47 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/111.

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