Arch Linux

lviggiani

Member

Registered: 2014-02-28

Posts: 141

fn keys for adjusting screen brightness don't work in GDM

In GDM, before logging in, the fn keys for adjusting screen brightness of my Dell XPS 9360 don't work.
They start working just after login, when the gnome session has started.
Is it a common issue with GDM or is it related to my laptop model only? Is there a fix / workaround?
Thanks!

Last edited by lviggiani (2019-06-05 09:58:50)

Head_on_a_Stick

Member

From: London

Registered: 2014-02-20

Posts: 7,732

Website

Re: fn keys for adjusting screen brightness don't work in GDM

Is there a fix / workaround?

Have you tried GDM instead?

The ArchWiki has a page dedicated to backlight problems, check it out.

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Are you infected with Wetiko?

lviggiani

Member

Registered: 2014-02-28

Posts: 141

Re: fn keys for adjusting screen brightness don't work in GDM

Is there a fix / workaround?

Have you tried GDM instead?

The ArchWiki has a page dedicated to backlight problems, check it out.

Thanks for your reply! Actually I'm using GDM (not lightdm as previously stated; my mistake)
BTW I've looked at the archwiki pages (both GDM and backlight) but I could find any solutions for me...