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Bug#582105: 855GM: hard hang when closing lid

Julien Cristau <jcristau@debian.org> writes:

> On Tue, May 18, 2010 at 14:10:14 +0200, Juliusz Chroboczek wrote:
>> Package: linux-image-2.6.33-2-686
>> Version: 2.6.33-1~experimental.5
>> A laptop with 855GM video chipset (Dell Latitude X300) hangs whenever
>> I close the lid.  Using kms.  Julien is telling me that this is a known
>> issue, but I cannot find a relevant bug report.
> I was thinking of the bug fixed by:
> commit 7b9c5abee98c54f85bcc04bd4d7ec8d5094c73f4
> Author: Jesse Barnes <jbarnes@virtuousgeek.org>
> Date:   Fri Feb 12 09:30:00 2010 -0800
>     drm/i915: give up on 8xx lid status
>     These old machines more often than not lie about their lid state.  So
>     don't use it to detect LVDS presence, but leave the event handler to
>     deal with lid open/close, when we might need to reset the mode.
>     Fixes kernel bug #15248
>     Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
>     Cc: stable@kernel.org
>     Signed-off-by: Eric Anholt <eric@anholt.net>
> but that's apparently a different issue (that seems to only affect
> initial detection).  Can you try setting up netconsole to get some more
> info?  The remaining 855GM issue I know of is
> https://bugs.freedesktop.org/show_bug.cgi?id=27187

Hi Julien,

what do you think about
https://bugs.freedesktop.org/show_bug.cgi?id=22126 ?  It's suspend
related, but maybe useful in other cases, too.  I'm not sure if it's
still relevant, now that KMS is disabled on 855 in the Squeeze kernel.
The fix is already merged into upstream linux-2.6.

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