[Intel-gfx] Legacy backlight control with KMS and BACKLIGHT property

[Jesse Barnes]

On Wed, 19 Aug 2009 08:03:06 +0100
Mike Lothian <mike at fireburn.co.uk> wrote:
> > # cd /sys/devices/pci0000\:00/0000\:00\:02.0/
> > # echo 1 > rom
> > # cat rom > /tmp/rom.bin
> > # echo 0 > rom
> >
> > Thanks,
> > --
> > Jesse Barnes, Intel Open Source Technology Center
> >
> 
> That doesn't seem to work
> 
> tau 0000:00:02.0 #  echo 1 > rom
> bash: rom: No such file or directory

?!  Hm, that could cause some problems...  Can I see your dmesg from a
fresh boot?  Maybe the kernel isn't allocating space for the ROM.

-- 
Jesse Barnes, Intel Open Source Technology Center