linux-kernel - Re: 3.8.2->3.8.3 i915 regression: GMBUS [i915 gmbus dpb] timed out, falling back to bit banging on pin 5

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Message-ID: <CAKMK7uHXpjucZhcjMgZXi2QSXOCgA=NZaOv0m2DvfuyT3TAzRw@mail.gmail.com>
Date:	Sun, 17 Mar 2013 20:40:46 +0100
From:	Daniel Vetter <daniel.vetter@...ll.ch>
To:	Arkadiusz Miskiewicz <a.miskiewicz@...il.com>
Cc:	linux-kernel@...r.kernel.org, Imre Deak <imre.deak@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	intel-gfx@...ts.freedesktop.org
Subject: Re: 3.8.2->3.8.3 i915 regression: GMBUS [i915 gmbus dpb] timed out,
 falling back to bit banging on pin 5

On Sat, Mar 16, 2013 at 11:35 AM, Arkadiusz Miskiewicz
<a.miskiewicz@...il.com> wrote:
> On Thursday 14 of March 2013, Arkadiusz Miskiewicz wrote:
>> Hello.
>>
>> After upgrading from 3.8.2 to 3.8.3 I'm getting regression :
>
> More people hits this:
> https://bugzilla.redhat.com/show_bug.cgi?id=922304
> https://bugs.archlinux.org/task/34327
> (seems always GM45 gpu in these reports)
>
> archlinux people also noticed that xrandr reports VGA1 as connected (while in
> reality nothing is connected to VGA1)

Can you please test whether 3.9-rc kernels are affected, too? We need
to know this since stable rules mandate that a regression is fixed on
upstream first. Once that's figured out we can backport a fix (if
3.9-rc works) or start working on a fix for 3.8-rc kernels first and
backport afterwards.

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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