Date: Thu, 23 Feb 2012 08:41:06 -0800
From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Keith Packard <keithp@keithp.com>
Subject: Re: i915 regression with 3.3-rc3+git
Message-ID: <20120223084106.4b132532@jbarnes-desktop>
In-Reply-To: <4F3EBD0D.7000906@gmail.com>
References: <4F3EBD0D.7000906@gmail.com>
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On Fri, 17 Feb 2012 21:48:13 +0100
Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com> wrote:

> Hello,
>=20
> i've upgraded from 3.2.0-rc7 to post 3.3.0-rc3 git=20
> 4903062b5485f0e2c286a23b44c9b59d9b017d53, attached you can find dmesg=20
> with drm.debug=3D0xfff
>=20
> This started to appear in logs:
>=20
> [drm:intel_framebuffer_init] *ERROR* unsupported pixel format
>=20
> X is getting a wrong resolution (log attached) and there's a lot of=20
> flickering, if i try to play a video the desktop turns black, the other=20
> ttys still works fine though.
>=20
> Please CC me since i'm not subscribed.
>=20
> 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series=20
> Chipset Integrated Graphics Controller (rev 07) (prog-if 00 [VGA=20
> controller])
> 	Subsystem: Samsung Electronics Co Ltd Device c045
> 	Flags: bus master, fast devsel, latency 0, IRQ 45
> 	Memory at f8000000 (64-bit, non-prefetchable) [size=3D4M]
> 	Memory at d0000000 (64-bit, prefetchable) [size=3D256M]
> 	I/O ports at 1800 [size=3D8]
> 	Expansion ROM at <unassigned> [disabled]
> 	Capabilities: [90] MSI: Enable+ Count=3D1/1 Maskable- 64bit-
> 	Capabilities: [d0] Power Management version 3
> 	Kernel driver in use: i915
>=20
> 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset=20
> Integrated Graphics Controller (rev 07)
> 	Subsystem: Samsung Electronics Co Ltd Device c045
> 	Flags: bus master, fast devsel, latency 0
> 	Memory at f8400000 (64-bit, non-prefetchable) [size=3D1M]
> 	Capabilities: [d0] Power Management version 3
>=20
> Thanks
>=20

Can you check the drm-intel-fixes branch at
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/drm-intel.git?
It has a fix for laod detection that might help.

--=20
Jesse Barnes, Intel Open Source Technology Center

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