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SubjectRe: i915: display doesn't get on back after returning from standby in 2.6.27-rc*
On 2010-11-25 11:31 -0800, Keith Packard wrote:
> On Thu, 25 Nov 2010 11:10:58 -0500, Nick Bowler <> wrote:
> >
> I've provided a couple of fixes that might be relevant here -- neither
> kernel nor user mode were setting the tracked DPMS state of the outputs
> to ON when doing mode setting, which caused all kinds of comedy. These
> should fix 23472 and 31803. I'm not entirely sure what's up with 23122,
> but it's possible that it's the same issue.
> The user mode DPMS tracking fix is in xf86-video-intel master, the
> kernel DPMS tracking fix was sent to Chris last week.

Hi Keith,

I had a chance to test your patches this weekend:

drm: record monitor status in output_poll_execute
drm: Set connector DPMS status to ON in drm_crtc_helper_set_config

cherry picked from ickle's repo on top of Linus' git 0f639a3c5ca6
("Merge branch 'for-linus' of git://").

Unfortunately, they do not correct my laptop backlight issue (fdo
bugzilla #31803): the panel still dims whenever the lid is opened.

Nick Bowler, Elliptic Technologies (

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