I haven’t had much problems with getting the Brightness Control to work in Mint 16, but after installing v17 I had to struggle much more.
I honestly admit that I don’t know which of the following steps actually did the trick, nevertheless it works now :)
OK, I’m currently running Mint 17 x64 on Lenovo W530 with Nvidia Quadro K1000M
and with Nvidia 331.38 installed. Display mode in BIOS is set to
Here’s a list of things I did:
- I’ve updated the bios to latest available version (G5ET99WW (2.59)) Read my short tutorial on how to upgrade it from a USB pendrive
- Generated a new
xorg.confusing “NVIDIA X Server Settings -> X Server Display Configuration -> Save to X Configuration file”
- Then added
EnableBrightnessControl=1to the device section in
Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "Quadro K1000M" Option "RegistryDwords" "EnableBrightnessControl=1" EndSection
- After rebooting, the only thing I could find in
- Then I tried to set the
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"or
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nox2apic acpi_osi=Linux acpi_backlight=vendor"but that didn’t work
- Finally I set it to only:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nox2apic"
- and after rebooting Brightness Control buttons (Fn+F8 & F9) started to work and in the
ls -la /sys/class/backlight total 0 lrwxrwxrwx 1 root root 0 Aug 10 10:14 acpi_video0 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/backlight/acpi_video0/
I hope this will help someone.
Pls drop some comments if it helped you!