Re: Authentication prompt when changing brightness

[Maxim Cournoyer]

"David Wilson" <address@hidden> writes:

> On Mon, Oct 7, 2019, at 5:18 PM, Vagrant Cascadian wrote:
>> 
>> You have to configure the udev rule in your system configuration; using
>> the rules shipped with the brightnessctl package works:
>> 
>>   (udev-configuration (inherit config)
>>                                      (rules (cons brightnessctl
>>                                                               
>> (udev-configuration-rules config)))))
>> 
>
> Thank you Vagrant, that led me down the correct path!  I was able to
> use your suggestion plus a udev config snippet I found in Pierre
> Neidhardt's Guix config to get backlight controls to work:
>
> https://gitlab.com/ambrevar/dotfiles/blob/master/.config/guix/system/default.scm#L22-30
>
> Regarding xfce4-power-manager's inability to control the backlight, I
> believe that its polkit policy file has not been picked up by the
> polkit-service such that it doesn't end up in /etc/polkit-1/actions
> where it belongs.  I'm looking into submitting a patch to correct this
> behavior so that future Guixers aren't confounded by that issue as I
> was.
>
> Thanks!
>
> David

Thanks for looking into it, David!

Maxim