Please try reading and writing new values to:
/sys/class/backlight/intel_backlight/brightness
instead of 'actual_brightness'. The to find out the value corresponding
to 100% brightness for your LCD panel look in the file 'max_brightness'.
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Please try reading and writing new values to:
/sys/class/backlight/intel_backlight/brightness
instead of 'actual_brightness'. To find out the value corresponding to
100% brightness for your LCD look in the file 'max_brightness'.
** Summary changed:
- Unable to change laptop screen brightness
I've removed the NVIDIA drivers and configured Ubuntu to use Nouveau.
sudo apt-get remove --purge '^nvidia-.*'
sudo apt-get install ubuntu-desktop
echo 'nouveau' | sudo tee -a /etc/modules
This hasn't fixed the situation. Altering the settings does not affect
the actual screen brightness (o
First a small warning: You seem to be using the 'oibaf' graphics PPA
which is not supported and is known to cause bugs. However I think it's
unlikely that's relevant here.
Second, other people are already reporting that having the Nvidia driver
installed has broken their brightness control. See bu
Also, have a look in /sys/class/backlight/... and see if you have any
working entries that allow you to control the brightness by writing to
them.
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https://bugs.launchpad.net/bugs/1862835
** Package changed: ubuntu => xorg (Ubuntu)
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https://bugs.launchpad.net/bugs/1862835
Title:
Unable to change laptop screen brightness or keyboard backlighting
To manage notifications a
