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-   -   drm/i915: Fix sync to vblank when VGA output is turned off (http://www.linux-archive.org/ubuntu-kernel-team/296288-drm-i915-fix-sync-vblank-when-vga-output-turned-off.html)

Alberto Milone 12-16-2009 04:08 PM

drm/i915: Fix sync to vblank when VGA output is turned off
 
On Wednesday 16 Dec 2009 18:02:25 you wrote:
> Alberto Milone wrote:
> > Hi all,
> >
> > SRU Justification:
> >
> > The problem described in this email was reported in a private OEM bug
> > report for Dell and has been solved by upstream. It's a regression in the
> > drm code which causes a massive system slowdown if we turn off the VGA
> > output.
> >
> > The patch is sane and minimal and is available in the drm-intel branch
> > and in the linux-next branch (see the link to the commit in the bug
> > report).
> >
> > I have applied (and slightly adapted, as it didn't apply cleanly to our
> > lucid and karmic git branches) and tested the patch successfully in
> > Karmic.
> >
> > The integration of this patch is very important for our Dell projects and
> > for the Ubuntu desktop at large.
> >
> > Please include the attached patch in both Karmic and Lucid ASAP.
> >
> > Bug #494461
> >
> > Thanks in advance for your time.
> >
> > Regards,
>
> Ok, thanks Alberto. I applied the patch now for Karmic. For Lucid it
> hopefully gets down from stable, but we / you probably should keep an eye
> on it for before the release.
>
> -Stefan
>

Ok, thanks a lot.

Regards,

--
Alberto Milone
Sustaining Engineer (system)
Foundations Team
Canonical OEM Services

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