Comment 58 for bug 392812

Renato Golin (rengolin) wrote :

Don't blame Canonical or Kernel developers. ACPI is very naughty and manufacturers like to keep it that way to avoid non-paid systems to run on them flawlessly, since they can't exploit it.

ACPI development is basically reverse-engineering and having one machine for each type (remember, there are many different Dell Studio 15") is simply impossible. If Dell, ATI, NVidia, Intel etc don't help, there's no way around it.