From: Daniel Vetter <daniel@ffwll.ch>
To: Jani Nikula <jani.nikula@intel.com>
Cc: maciej.rutecki@gmail.com, alferpal@gmail.com,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
intel-gfx@lists.freedesktop.org, daniel@ffwll.ch
Subject: Re: [PATCH 2/2] drm/i915: fall back to bit-banging if GMBUS fails in CRT EDID reads
Date: Thu, 16 Aug 2012 16:35:03 +0200 [thread overview]
Message-ID: <20120816143503.GC5083@phenom.ffwll.local> (raw)
In-Reply-To: <03e17075b1252d819178316c8b2a12573e59ddca.1344852255.git.jani.nikula@intel.com>
On Mon, Aug 13, 2012 at 01:22:35PM +0300, Jani Nikula wrote:
> GMBUS was enabled over bit-banging as the default in commits:
>
> commit c3dfefa0a6d235bd465309e12f4c56ea16e71111
> Author: Daniel Vetter <daniel.vetter@ffwll.ch>
> Date: Tue Feb 14 22:37:25 2012 +0100
>
> drm/i915: reenable gmbus on gen3+ again
>
> and
>
> commit 0fb3f969c8683505fb7323c06bf8a999a5a45a15
> Author: Daniel Vetter <daniel.vetter@ffwll.ch>
> Date: Fri Mar 2 19:38:30 2012 +0100
>
> drm/i915: enable gmbus on gen2
>
> Unfortunately, GMBUS seems to fail on some CRT displays. Add a bit-banging
> fallback to CRT EDID reads.
>
> LKML-Reference: <201207251020.47637.maciej.rutecki@gmail.com>
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=45881
> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Patches applied to -fixes with the tested-by result from the bug report.
I've also put a cc: stable on both of them, since the regression is
already in 3.4.
Thanks, Daniel
--
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48
prev parent reply other threads:[~2012-08-16 14:35 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-25 8:20 [REGRESSION] [KMS] [INTEL] Wrong resolution in console and XWindow Maciej Rutecki
2012-07-25 8:29 ` Daniel Vetter
2012-07-25 8:54 ` Maciej Rutecki
2012-07-25 9:29 ` Daniel Vetter
2012-07-25 10:57 ` Maciej Rutecki
2012-07-25 11:55 ` Daniel Vetter
2012-07-26 12:38 ` Daniel Vetter
2012-07-27 11:46 ` Maciej Rutecki
2012-08-13 10:22 ` [PATCH 0/2] GMBUS EDID read bit-banging fallback Jani Nikula
2012-08-13 10:22 ` [PATCH 1/2] drm/i915: extract connector update from intel_ddc_get_modes() for reuse Jani Nikula
2012-08-13 10:22 ` [PATCH 2/2] drm/i915: fall back to bit-banging if GMBUS fails in CRT EDID reads Jani Nikula
2012-08-16 14:35 ` Daniel Vetter [this message]
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