Also see https://wiki.ubuntu.com/Kernel/Debugging/Backlight

In particular, try adding acpi_backlight=vendor to your kernel boot
parameters on the GRUB command line.

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1005196

Title:
  (regression) no backlight control

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1005196/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to