From: Chris Wilson <chris@chris-wilson.co.uk>
To: Keith Packard <keithp@keithp.com>, intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915: mark display port DPMS state as ON when enabling output
Date: Sun, 03 Oct 2010 22:05:13 +0100 [thread overview]
Message-ID: <89k77n$p47jkc@fmsmga001.fm.intel.com> (raw)
In-Reply-To: <1286138029-3728-1-git-send-email-keithp@keithp.com>
On Sun, 3 Oct 2010 13:33:49 -0700, Keith Packard <keithp@keithp.com> wrote:
> The display port DPMS state is tracked internally in the display port
> driver so that when a hotplug event comes along, the driver can know
> whether to try retraining the link. This doesn't work well if the
> driver never sets the DPMS state to ON when the output is enabled.
It appears that all users (crtc and encoders) are tracking dpms_mode, in
one form or another. Should we move this to core?
Is there any hardware that requires notification even when there is no
change?
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
next prev parent reply other threads:[~2010-10-03 21:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-03 20:33 [PATCH] drm/i915: mark display port DPMS state as 'ON' when enabling output Keith Packard
2010-10-03 21:05 ` Chris Wilson [this message]
2010-10-03 23:06 ` [PATCH] drm/i915: mark display port DPMS state as ON " Keith Packard
2010-10-04 9:17 ` [Intel-gfx] " Chris Wilson
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