help with backlight control and memory

[Adrian Chadd]

Is this running the latest -HEAD?

Yes, some extra code was glued into the i915kms / drm2 code from Linux
that correctly selected the right video output device for the
brightness controls. (the opcontrol patch that I committed a couple
months back.)

The buttons don't work on my X series laptop, but the sysctl does. the
buttons work for others on  other X series laptops. It's likely some
more ACPI and i915kms things need porting.



-a


On 19 October 2014 07:34, Renato Aguiar <renato at aguiar.info> wrote:
> Hi Lars,
>
> On my X230 I only can change brightness calling acpi directly using
> acpi_call. Did you make some additional configuration to be able to use
> sysctl to control brightness?
>
> Thanks,
>
> Lars Engels writes:
>
>> On Sat, Oct 18, 2014 at 11:03:38PM +0200, Wojciech Puchar wrote:
>>> tried. jsut after kernel is loaded backlight control keys stops working.
>>> tried loading every acpi_* kernel module that is available, with no
>>> results
>>
>> On my X230 running HEAD brightness keys only work when acpi_video.ko is
>> _not_ loaded. When it is loaded, I can control brightness with sysctl,
>> though.
>
> --
> Renato Aguiar