Bug#649867: [gma500] On boot, switches on too high video mode

[Stéphane Aulery <lkppo@free.fr>]

Le jeudi 24 novembre 2011 à 05:38:14, Jonathan Nieder a écrit :
> 
> Stéphane Aulery wrote:
> 
> > Just after entering in runlevel S, kernel Linux 3.1.0-1-686-pae switch on too
> > high video mode for my old 1024x768 screen (Hyundai ImageQuest L50S), when It
> > configure video card. Kernel Linux 2.6.39-2-686-pae had always worked fine.
> 
> I take it this is an LCD.

Yes.

> What are the symptoms of using the video mode with too-high resolution?

Screen become black and the monitor diplays a buildin message :

   video mode not supported

> 
> > 00:02.0 VGA compatible controller [0300]: Intel Corporation System Controller Hub (SCH Poulsbo) Graphics Controller [8086:8108] (rev 07) (prog-if 00 [VGA controller])
> [...]
> 
> The Poulsbo driver was enabled in Debian in 3.0~rc1-1~experimental.1.
> I don't see any mode detection fixes since v3.1 upstream, so please
> report this upstream to Alan Cox <alan@linux.intel.com>, cc-ing Patrik
> Jakobsson <patrik.r.jakobsson@gmail.com> and
> devel@driverdev.osuosl.org and either me or this bug log so we can
> track it.  Be sure to include full "dmesg" output (even better if you
> pass the option drm.debug=0x06 on the kernel command line).

I will do that.

Regards,

-- 
Stéphane Aulery