Hi.
I Googling last few hours but without success.
I found various solutions but none of them works.
for example as root :
xbacklight -dec 100
RANDR Query Version returned error -1
Is there way I can at least turn Off / On display backlight?
Please Help.
Josef
Setting LCD backlight from commandline
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- Posts: 3
- Joined: 2015/03/18 13:33:09
Re: Setting LCD backlight from commandline
Nobody?
When I try set acpi_backlight=vendor than it removes all entries from /sys/class/backlight. Removing it from GRUB returns it back.
Something like tee /sys/class/backlight/acpi_video0/brightness <<< 5 does nothing with backlight. It changes value in those files.
When I try set acpi_backlight=vendor than it removes all entries from /sys/class/backlight. Removing it from GRUB returns it back.
Something like tee /sys/class/backlight/acpi_video0/brightness <<< 5 does nothing with backlight. It changes value in those files.