Ubuntu
linux package

  1. Bug #1178727
  2. Comment #11

Comment 11 for bug 1178727

Revision history for this message
Ethan Shalev (shalev-ethan) wrote :

I just installed a fresh install of 13.10 on this machine, and the problem persisted. However, changing my GRUB settings to
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX="acpi_osi=Linux"
now allows me to adjust the brightness, although at boot, it's set to 0. (I'll look into that problem seperately).
Is there any reason I should not use acpi_osi=Linux? I've read it could have ill effect, namely on the fans. Can I test this somehow?

Does this information help in somehow fixing this problem for other users?