Hi Sergei,
On Fri, Aug 26, 2011 at 17:30, Sergei Trofimovich <slyich@xxxxxxxxx> wrote:
> Around -rc2+ i've noticed the following warning in dmesg [1]
>
>> WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0xb8/0xf0()
>> sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:02.0/drm/card0/card0-LVDS-1/intel_backlight'
>
> It tries to register backlight twice, so fails miserably.
> The machine is compaq-2510p with 965GM.
>
> Reverting commit aaa6fd2a004147bf32fce05720938236de3361d9 helps.
> ("Not all systems expose a firmware or platform mechanism for changing
> the backlight intensity on i915, so add native driver support.")
>
> Attached dmesg before reverting the patch and after.
>
There's another patch that fixes this issue:
https://patchwork.kernel.org/patch/1086232/
regards,
Lucas De Marchi
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