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SubjectRe: [git pull] drm for rc1
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On Tue, 11 Jan 2011 14:51:40 +1000, Dave Airlie <airlied@gmail.com> wrote:
> On Tue, Jan 11, 2011 at 2:48 PM, Dave Airlie <airlied@gmail.com> wrote:
> > On Tue, Jan 11, 2011 at 2:16 PM, Linus Torvalds
> > <torvalds@linux-foundation.org> wrote:
> >> On Mon, Jan 10, 2011 at 2:59 PM, Dave Airlie <airlied@linux.ie> wrote:
> >>> Highlights:
> >>> core/drivers: add support for high precision vblank timestamps
> >>> radeon: pageflipping support, Gen2 PCIE support
> >>> nouveau: reworked VRAM and VM support
> >>> intel: better ILK/SNB powersaving support, Full GTT support
> >>
> >> Lowlights: it's broken.
> >>
> >> I get millions of messages like:
> >>
> >>  ...
> >>  [ 8482.000414] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck
> >> timer elapsed... render ring idle [waiting on 30938, at 30938], missed
> >> IRQ?
> >>  [ 8485.918124] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck
> >> timer elapsed... render ring idle [waiting on 31068, at 31068], missed
> >> IRQ?
> >>  [ 8487.926963] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck
> >> timer elapsed... render ring idle [waiting on 31129, at 31129], missed
> >> IRQ?
> >>  ...
> >>
> >> and everything is very choppy. I assume it's the power saving thing
> >> that broke again, but that's just a total random guess, I have nothing
> >> to actually back that up with.
> >>
> >> It worked fine after boot, but those problems began at 8287.139375
> >> (about two hours after boot - it may have coincided with screen saver,
> >> but who knows?)  and have been happening constantly since. The machine
> >> is not really usable, I'm writing this with annoying 2-second pauses
> >> every once in a while.
> >
> > Okay I'll try and reproduce and curse Chris and Jesse, does booting with
> > i915.powersave=0 help any?
>
> I've also noticed Chris has some more patches in drm-intel-next I
> haven't got in this pull request.
>
> I don't think he's sent me a pull request though so not telling how
> stable they are.

Yes, there are a few pending fixes. I've been waiting on feedback from
testing for some more before asking for a pull. In part because we have
some more eDP fixes, courtesy of Jesse, that makes everyone but Jim Getty
happy.

However, I've not seen anything like this so I doubt that d-i-n contains
the fix.

Dave, is yours related to the DMAR errors that is plaguing your systems?

Linus, is anything else kicked off upon powersaving? A screen saver or is
it just the blanking that triggers the mess?
-Chris

--
Chris Wilson, Intel Open Source Technology Centre
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