[Bug 392812] Re: Dell Studio 1555: cannot change display brightness after a while, other hotkeys and ACPI stuff begin to fail

[rengolin]

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.

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Dell Studio 1555: cannot change display brightness after a while, other hotkeys and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
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