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Message-ID: <87wqclz2h8.fsf@purkki.adurom.net>
Date:	Fri, 13 Jun 2014 10:35:15 +0300
From:	Kalle Valo <kvalo@...rom.com>
To:	Hans de Goede <hdegoede@...hat.com>
Cc:	Aaron Lu <aaron.lu@...el.com>,
	ACPI Devel Mailing List <linux-acpi@...r.kernel.org>,
	"intel-gfx\@lists.freedesktop.org" <intel-gfx@...ts.freedesktop.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [Intel-gfx] video: X sets brightness to zero after resume

Hans de Goede <hdegoede@...hat.com> writes:

>>> If I set video.use_native_backlight=0 in kernel command line the problem
>>> goes away. Or if I revert your commit 0e9f81d3b7c the problem also goes
>>> away. Any ideas?
>> 
>> Not really...
>> I've added i915 people maybe they have an idea.
>
> This is a known issue in xf86-video-intel, which gets exposed due to the
> video.use_native_backlight=1 option. This should be fixed in the latest 2.99.912
> xf86-video-intel release.

Ok, thanks. As Ubuntu 12.04 doesn't have that I'll continue to use
video.use_native_backlight=0 until I update my distro.

-- 
Kalle Valo
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