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Fix brightness control issue with Intel card in Ubuntu and Linux Mint
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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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