Re: backlight: oops in __mutex_lock_slowpath during head/sys/class/graphics/fb0/* in 2.6.18
From: Andrew Morton
Date: Fri Sep 22 2006 - 19:04:06 EST
On Fri, 22 Sep 2006 13:26:22 +0200
Olaf Hering <olaf@xxxxxxxxx> wrote:
> On Thu, Sep 21, Michael Hanselmann wrote:
>
> > What about the patch below? Does it work for you?
>
> Appears to work.
>
> tangerine:~ # head /sys/class/graphics/fb0/*
> ==> /sys/class/graphics/fb0/bits_per_pixel <==
> 8
>
> ==> /sys/class/graphics/fb0/bl_curve <==
> head: error reading `/sys/class/graphics/fb0/bl_curve': No such device
>
> ==> /sys/class/graphics/fb0/blank <==
>
> ==> /sys/class/graphics/fb0/console <==
>
> ==> /sys/class/graphics/fb0/cursor <==
>
> ==> /sys/class/graphics/fb0/dev <==
> 29:0
>
> ==> /sys/class/graphics/fb0/mode <==
>
> ==> /sys/class/graphics/fb0/modes <==
> U:832x624p-74
>
> ==> /sys/class/graphics/fb0/name <==
> valkyrie
>
> ==> /sys/class/graphics/fb0/pan <==
> 0,0
>
> ==> /sys/class/graphics/fb0/rotate <==
> 0
>
> ==> /sys/class/graphics/fb0/state <==
> 0
>
> ==> /sys/class/graphics/fb0/stride <==
> 832
>
> ==> /sys/class/graphics/fb0/subsystem <==
> head: error reading `/sys/class/graphics/fb0/subsystem': Is a directory
> head: cannot open `/sys/class/graphics/fb0/uevent' for reading: Permission denied
>
> ==> /sys/class/graphics/fb0/virtual_size <==
> 832,624
Still looks like a bit of a mess, but I assume that's expected.
Michael, I take it that patch was final?
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