On 05/04/2017 03:42 PM, Lars Noodén wrote: > I'm having trouble adjusting the backlight on my LCD screen in RC 1 with > XFCE4. No matter what I've tried so far, it stays where it is. With > Ubuntu 16.04, things are pre-configured and it is just a matter of > pressing the right function buttons. However, with Devuan Jessie RC 1 > the right commands are hard to figure out. > > Here is what I've tried so far to change the backlight intensity. None > have any effect: > > $ xrandr --output default --brightness 0 > xrandr: Gamma size is 0. > > $ ls /sys/class/backlight/ > > $ xgamma -gamma 0.9 > -> Red 1.000, Green 1.000, Blue 1.000 > <- Red 0.900, Green 0.900, Blue 0.900 > > $ xbacklight > No outputs have backlight property > > I've also tried adding "acpi_backlight=vendor" to the kernel boot options. > > What should I be looking at or trying so as to be able to increase or > decrease the backlight? > > Regards, > Lars > > PS. The RC1 installer is much improved for this notebook. It found > the wireless, for example >
It's with this kernel: $ uname -s -r -v -m Linux 3.16.0-4-amd64 #1 SMP Debian 3.16.43-2 (2017-04-30) x86_64 Any hints would be appreciated. Regards, Lars _______________________________________________ Dng mailing list [email protected] https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
