This is a bug in the kernel drm layer. I've got a patch from upstream that fixed it, but it's still unclear whether it is the final patch. I might upload a mesa with vblank disabled until the correct fix is in the kernel.
This is a bug in the kernel drm layer. I've got a patch from upstream that fixed it, but it's still unclear whether it is the final patch. I might upload a mesa with vblank disabled until the correct fix is in the kernel.