linux-kernel - Re: [PATCH] i915: Skip wrong TV outputs on HP laptop

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Date:	Wed, 21 Apr 2010 16:03:43 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	ykzhao <yakui.zhao@...el.com>
Cc:	Eric Anholt <eric@...olt.net>, David Airlie <airlied@...ux.ie>,
	"dri-devel@...ts.sourceforge.net" <dri-devel@...ts.sourceforge.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>
Subject: Re: [PATCH] i915: Skip wrong TV outputs on HP laptop

At Wed, 21 Apr 2010 08:46:16 +0800,
ykzhao wrote:
> 
> On Wed, 2010-04-21 at 01:58 +0800, Takashi Iwai wrote:
> > At Tue, 20 Apr 2010 10:13:20 -0700,
> > Eric Anholt wrote:
> > > 
> > > On Tue, 20 Apr 2010 14:50:54 +0200, Takashi Iwai <tiwai@...e.de> wrote:
> > > > A new HP laptop with GM45 seems detecting wrongly TV outputs
> > > > occasionally.  Most of time it detects the TV output as disconnected,
> > > > but spontaneously it detects NTSC 480i although the laptop has no TV
> > > > output at all.
> > > > 
> > > > A simple (but ad hoc) fix is to add a DMI check as below.
> > > > 
> > > > Signed-off-by: Takashi Iwai <tiwai@...e.de>
> > > 
> > > Does this laptop have no TV connector on the laptop or the dock for it?
> > 
> > No, it has neither TV connector nor docking-station.
> > 
> > If any patch that can fix the wrong detection is available, I'll
> > happily test it.
> 
> Oh. This laptop is also based on gm45. Maybe it has the similar issue
> wit the laptop on https://bugzilla.kernel.org/show_bug.cgi?id=14792.
> 
> Will you please try the patch in
> hhttps://bugzilla.kernel.org/show_bug.cgi?id=14792#C24 and see whether
> the issue can be fixed?

Looks positive.  Rebooted many times, and no longer wrong detection.
It'd be nice if this is merged to upstream, and also for stable kernel.

Tested-by: Takashi Iwai <tiwai@...e.de>


Thanks!

Takashi
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