Hi
Ubuntu Jaunty began suffering from periodic freezes when switching the
desktop (in compiz) or doing some other graphically intensive tasks. It
started with the new kernel that got these patches:
* drm/i915: Don't double-unpin buffers if we take a signal in
* drm/i915: Don't complain when interrupted while pinning in execbuffers.
* drm/i915: Don't allow objects to get bound while VT switched.
* drm/i915: set vblank enabled flag correctly across IRQ
* drm/i915: don't enable vblanks on disabled pipes
And I suspect it's the vblank patches that broke it, see this comment:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/320813/comments/4
this is also reported on b.fd.o, but likely the wrong component:
https://bugs.freedesktop.org/show_bug.cgi?id=19676
This is when using EXA. UXA has it's own problems; X crashes when resuming
from suspend..
I can myself reproduce it reliably after a suspend/resume cycle.
Would be delighted to see this fixed soon :)
ps. mesa is 7.3rc3 + 194d039
t
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