https://bugs.freedesktop.org/show_bug.cgi?id=111272
Michel Dänzer michel@daenzer.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Assignee|dri-devel@lists.freedesktop |mesa-dev@lists.freedesktop. |.org |org Component|DRM/AMDgpu |GLX Version|XOrg git |unspecified Product|DRI |Mesa QA Contact| |mesa-dev@lists.freedesktop. | |org
--- Comment #7 from Michel Dänzer michel@daenzer.net --- Due to DRI_PRIME=1, libGL tries to initialize the i965 driver with DRI3, which fails:
libGL error: Different GPU, but blitImage not implemented for this driver libGL error: failed to load driver: i965
So it falls back to DRI2, which uses the AMD GPU, because the Intel one wasn't initialized in Xorg. DRI2 doesn't support sync-to-vblank via PRIME.
Reassigning to Mesa for now, but DRI_PRIME=1 really isn't intended to be used with a single GPU.