linux-kernel - i915/kms/backlight-combo mode problem (was: Re: Linux 2.6.39-rc5)

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Message-Id: <201104291941.53663@rk-nord.at>
Date:	Fri, 29 Apr 2011 19:41:53 +0200
From:	Melchior FRANZ <melchior.franz@...il.com>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Chris Wilson <chris@...is-wilson.co.uk>,
	dri-devel@...ts.freedesktop.org
Subject: i915/kms/backlight-combo mode problem (was: Re: Linux 2.6.39-rc5)

* Takashi Iwai -- Friday 29 April 2011:
> Melchior FRANZ wrote:
> > The bug was introduced with commit ba3820ade317ee36e496b9b40d2ec3987dd4aef0
> > [...] when using KMS my notebook's[2] screen remains dark, because the
> > backlight isn't turned on.

> Could you check whether the patch below changes the behavior?
> If this cures, it means that the backlight-combo mode doesn't work on
> your machine.

Yes, that works. (Test was with fafc9929c668f8bae6dd1f109f33a86d2cb3c460,
which is current HEAD.)

m.
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