https://bugs.freedesktop.org/show_bug.cgi?id=106536
Bug ID: 106536
Summary: glXWaitVideoSyncSGI blocks forever
Product: Mesa
Version: 18.0
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: GLX
Assignee: mesa-dev@lists.freedesktop.org
Reporter: ge...@hostfission.com
QA Contact: mesa-dev@lists.freedesktop.org
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.
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