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From: Philipp Gesang <phg@phi-gamma.net>
To: Jani Nikula <jani.nikula@linux.intel.com>
Cc: daniel.vetter@intel.com, intel-gfx@lists.freedesktop.org
Subject: Re: [bisect] regression in suspend with i915 on 82852/855GM
Date: Fri, 26 Jun 2015 00:22:01 +0200	[thread overview]
Message-ID: <20150625222201.GA15403@acheron> (raw)
In-Reply-To: <87bng37azj.fsf@intel.com>


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···<date: 2015-06-26, Friday>···<from: Jani Nikula>···

> On Thu, 25 Jun 2015, Philipp Gesang <phg@phi-gamma.net> wrote:
> > Nice tool. With a vanilla kernel I get a value of 0x80000000
> > before suspend and 0x00000000 after resume. With the patched
> > kernel it’s 0x80000000 before and after.
> >
> > On the vanilla kernel, issuing ``intel_reg write 0x61260 0x80000000`` 
> > after resume turns the backlight back on.
> 
> Please try this patch:
> 
> From 018c3dab349b9ba82364ea6e7257d1bbad3df2ae Mon Sep 17 00:00:00 2001
> From: Jani Nikula <jani.nikula@intel.com>
> Date: Thu, 25 Jun 2015 23:55:06 +0300
> Subject: [PATCH] drm/i915: fix backlight on gen2
> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo
> Cc: Jani Nikula <jani.nikula@intel.com>

Tested based on kernel aefbef10e3…. Works great, thanks!

Best,
Philipp



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      reply	other threads:[~2015-06-25 22:22 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-23 22:26 [bisect] regression in suspend with i915 on 82852/855GM Philipp Gesang
2015-06-25  7:48 ` Jani Nikula
2015-06-25 20:38   ` Philipp Gesang
2015-06-25 21:07     ` Jani Nikula
2015-06-25 22:22       ` Philipp Gesang [this message]

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