Debian Gnome 3.14 - no backlight

Zoltan K's picture


Please help!! Smile

Cannot change the screen brightness. No such option in Settings/Power/ window.
No applet or widget in the top bar.
sys/class/backlight directory is empty
no backlight device detected
cannot install

Running Debian Gnome 3.14.
Desktop PC with 4 GB RAM
Intel® Core™2 Quad CPU Q6600 @ 2.40GHz × 4
graphics: Gallium 0.4 on NVE7 (hardware: Nvidia GTX 650)
Debian GNU/Linux 8 (jessie) 32-bit

What have I done wrong? Sad Thank you for any help!!

Also tried with live DVD

Zoltan K's picture

Also tried with live DVD Fedora & Ubuntu - same result. No option to change brightness (with nouveau driver)
Beee Should be a hardware problem.

It looks like the HDMI connection to the monitor is the problem. Could you give me some advice to make it work?