1

How can I get the brightness on my ASUS G75 laptop to work in Ubuntu 12.10 alpha?

On my MacBook Pro, there used to be an nvidia-bl-dkms module. On my Dell XPS 15z, it worked out of the box. Now I am a little bit stumped and need help.

I've got the nvidia-current 304.43 drivers installed.

Thanks.

1

I got brightness control to basically (but not perfectly) work on my ASUS G75VW-DH72 by following these steps:

  1. Add the line Option "registryDwords" "EnableBrightnessControl=1" in the appropriate Device section of the /etc/X11/xorg.conf file.
  2. Do sudo pico /etc/default/grub and add acpi_osi=Linux and acpi_backlight=vendor to the GRUB_CMDLINE_LINUX_DEFAULT variable. Press Ctrl+O to save.
  3. Run sudo update-grub to rebuild grub.cfg.
  4. Reboot.

It's not working perfectly for me yet; I have to press the backlight hotkey twice before it registers, and then when it registers it increments the brightness by 2 instead of by 1, so I only have 6 accessible brightnesses. You can do better by directly writing integers into /sys/class/backlight/asus-nb-wmi/brightness. If you find solutions to those problems, please let me know!

The nvidiabl thing did not work for me at all when I tried it.

This page is a useful resource: http://www.linlap.com/asus_g75vw

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.