Comment 26 for bug 428900

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Geir Ove Myhr (gomyhr) wrote : Re: Opengl is unstable with cairo-dock drmWaitVBlank returned -1

Does
do_wait: drmWaitVBlank returned -1, IRQs don't seem to be working correctly.
show up on STDERR when the problem occurs (the background changes) or before?

The warning comes from mesa, in http://cgit.freedesktop.org/mesa/mesa/tree/src/mesa/drivers/dri/common/vblank.c (in do_wait() around line 260). drmWaitVBlank() is in http://cgit.freedesktop.org/mesa/drm/tree/libdrm/xf86drm.c .