help with backlight control and memory

[Renato Aguiar]

Hi Adrian,

I've applied your patch into 10.1-RC2 and now I can set brightness using
sysctl, but I still can't use xbacklight. At least I don't need
acpi_call anymore.

Thanks,

Renato Aguiar writes:

> Hi Adrian,
>
> No, I switched back to stable branch some months ago. I'm currently
> using 10.1-RC2. I've tried to test using snapshot install image, but my
> screen goes blank when I try to load i915kms without running Xorg.
>
> Is the xbacklight tool working for you on X230 as well?
>
> Thanks,
>
> Adrian Chadd writes:
>
>> 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
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-- 
Renato Aguiar