From: Chris Wilson <chris@chris-wilson.co.uk>
To: Adam Jackson <ajax@redhat.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915/crt: Only support DPMS On/Off with the PCH registers
Date: Tue, 10 Apr 2012 15:12:35 +0100 [thread overview]
Message-ID: <1334067159_346690@CP5-2952> (raw)
In-Reply-To: <4F8433A6.7020202@redhat.com>
On Tue, 10 Apr 2012 09:20:38 -0400, Adam Jackson <ajax@redhat.com> wrote:
> On 4/10/12 4:35 AM, Chris Wilson wrote:
> > As part of the PCH split, the ability to control CRT standby/suspend
> > states was defeatured; the bits are now marked reserved and apparently
> > have no effect.
>
> Are the intermediate states even tested? I have vague memories of them
> not working. I'd be just as happy to see them aliased to Off.
All I can say is that QA reported that ILK+ suspend/standby did not work
with an external VGA monitor. However, that doesn't say whether or not
they ever tested earlier generations if it took a few years to spot the
behavioural regression.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
next prev parent reply other threads:[~2012-04-10 14:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-10 8:35 [PATCH] drm/i915/crt: Only support DPMS On/Off with the PCH registers Chris Wilson
2012-04-10 8:45 ` Daniel Vetter
2012-04-10 13:20 ` Adam Jackson
2012-04-10 14:12 ` Chris Wilson [this message]
2012-04-10 17:30 ` Keith Packard
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