Bug 106536

Summary:	glXWaitVideoSyncSGI blocks forever
Product:	Mesa	Reporter:	Geoffrey McRae <geoff>
Component:	GLX	Assignee:	mesa-dev
Status:	RESOLVED MOVED	QA Contact:	mesa-dev
Severity:	normal
Priority:	medium
Version:	18.0
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

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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