I would like to get a current solution to the brightness settings as I have seen other other solutions to the problem for the brightness not working.

  1. Can someone please explain why the brightness isn't working in the buntus?

  2. How to fix my brightness, so that I can set it from my F2 and F3 keys.

I have a HP Pavillion DV 6

Running the cat /lib/systemd/system/systemd-backlight@.service command I get the following:

[Unit] Description=Load/Save Screen Backlight Brightness of %i Documentation=man:systemd-backlight@.service(8) DefaultDependencies=no RequiresMountsFor=/var/lib/systemd/backlight Conflicts=shutdown.target After=systemd-remount-fs.service Before=sysinit.target shutdown.target

[Service] Type=oneshot RemainAfterExit=yes ExecStart=/lib/systemd/systemd-backlight load %i ExecStop=/lib/systemd/systemd-backlight save %i TimeoutSec=90s

And running the lspci | grep VGA I get the following output:

00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Whistler [Radeon HD 6730M/6770M/7690M XT] (rev ff)


  • Please edit your question with the output of cat /lib/systemd/system/systemd-backlight@.service. – Raphael Aug 15 '16 at 2:51
  • Also, do you have a graphics card? – Raphael Aug 15 '16 at 2:53

I managed to find the solution on this page..

From: It's FOSS website

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