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Last active July 9, 2021 01:47
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Fix brightness control issue with Intel card in Ubuntu and Linux Mint
Now, you have to follow this suggestion given by people all around the world: edit the /etc/default/grub file in super user mode and insert acpi_backlight=none to the GRUB_CMDLINE_LINUX_DEFAULT variable. For example, here is what I have:
GRUB_CMDLINE_LINUX_DEFAULT="quiet acpi_backlight=none"
1
GRUB_CMDLINE_LINUX_DEFAULT="quiet acpi_backlight=none"
After editing this file, run sudo update-grub and reboot. Backlight keys should work now.
You can get rid of the 20-intel.conf file if you have used it.
#source: https://blog.dakwamine.fr/?p=1771
#sudo gedit /usr/share/X11/xorg.conf.d/20-intel.conf
Section "Device"
Identifier "card0"
Driver "intel"
Option "Backlight" "intel_backlight"
BusID "PCI:0:2:0"
EndSection
#Source: https://itsfoss.com/fix-brightness-ubuntu-1310/
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