i915 backlight control broken

[Henry Hu]

On Thu, Jan 22, 2015 at 4:22 PM, Miguel Clara <miguelmclara at gmail.com>
wrote:

> Was it working before?
>
> For me it never did on 10 or 11
>
> I don't see the sysctl and  xbacklight reports: "No outputs have backlight
> property".
>

If you don't see the sysctl, do you have kernel module acpi_video loaded?

xbacklight is always broken....

>
> I have the same issue in a HP and an Accer never could make it work.
>
>
>
>
> Melhores Cumprimentos // Best Regards
> -----------------------------------------------
> *Miguel Clara*
> *IT - Sys Admin & Developer*
> *E-mail:    *miguelmclara at gmail.com
>          www.linkedin.com/in/miguelmclara/
>
> On Thu, Jan 22, 2015 at 9:07 PM, Ranjan1018 . <214748mv at gmail.com> wrote:
>
> > Just upgraded my laptop from r277395 to r277534. The backlight control
> via
> > hw.acpi.video.lcd0.brightness do not works: the backlight is always at
> > 100%.
> >
> > Maurizio
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-- 
Cheers,
Henry