Bug 370264

Summary: KWin crash with "No provider of glFenceSync found"
Product: [Plasma] kwin Reporter: Yury Zhuravlev <stalkerg>
Component: effects-variousAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal    
Priority: NOR    
Version: 5.8.0   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Yury Zhuravlev 2016-10-07 21:35:48 UTC 
After upgrade to kwin 5.8 "graphic effects" has not worked. 
I pulled KWin from master and builded by hand. 
All problem in void GLVertexBuffer::endOfFrame() (kwinglutils) when we try call glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);

Everything started to work fine after KWIN_PERSISTENT_VBO=0 .

Currently I am using EGL on Intel Haswell (mesa, libdrm, xf86-video-intel from git)

PS We realy can use glFenceSync under EGL?

Reproducible: Always
Comment 1 Martin Flöser 2016-10-08 13:19:12 UTC 
Looks like a duplicate.

*** This bug has been marked as a duplicate of bug 369317 ***