Re: kernel param : why acpi=off breaks screen resolution ?
On my laptop Acer (model 4750) I have to pass kernel parameter acpi=off
to be able to setup screen brightness via the Fn key.
However the screen resolution is then downgrade (to 1024/640 from
Acer (like many manufacturers) have there own ideas about ACPI standards.
Which solution should I try ?
Try Testing - or look for backported acpi packages.
I'm using latest Squeeze 18.104.22.168.
I tried same thing with Ubuntu 11.04 : it works perfectly as FN keys
works without any loss of screen resolution.
Hence the testing/backports suggestion.
Fine for using the backports.
But then which packages should I backport ?