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
1366/768).
<snipped>
I'd suggest first try interupting the boot at the grub screen, and
editing the boot command to replace "acpi=off" with "acpi=force"
If that gets you the Function key and your full screen resolution ranges
- just edit /etc/default/grub and update-grub.
It's not likely that will fix the problem - so...
First confirm that Debian can support the ASUS
"make-up-[beep]-as-we-go-along" ACPI ;-p
by trying a Sid live usb-hdd image first (if that works - it's less work
to backport to Squeeze):-
http://live-build.debian.net/cgi-bin/live-build
select usb-hdd, Sid, kde-core (or gnome-core, or xfce) to test screen
and function keys).
If that fails to give you ACPI support you'll need to try Unstable -
though I suspect Testing will do it (based on your Ubuntu experience).
If Testing works for you - determine which modules are loaded, and note
the kernel. Then post your results and we (the list) can try and help
you from there.
Just to increase your options - I've had some success (with different
ASUS netbooks) just downloading eeepc-acpi-scripts from Testing and
installing it's requirements from Testing. It's a fiddly process that
also requires pinning. Strongly suggest you try Sid first, then consider
which packages you need - and whether you want to stay with Sid or
backport/mash/hack those packages into Squeeze.
NOTE: you want "bleeding-edge" hardware, you need "bleeding-edge"
software, and Debian needs testers... those of us that run stable salute
your sacrifices ;-p
(note : my laptop is an Acer not an Asus)
I tried testing (Wheezy) did not work.
So I tried unstable (Sid) did not work neither...
Sorry for Debian but this time I'll Ubuntu 11.04 which works fine on
this hardware which is laptop Acer model 4750.
However I kept dual boot so still have the Debian Sid on it.
So dears Debian testers do not hesitate to ask me logs ..etc..
whatever might help Debian to improve support of 'bleeding-edge'
hardware as mentioned by Scott.
I use Debian on all my others PC and servers and will really enjoy to
use it also on my latest laptop.
Thanks for attention.
Bye,
Bruno
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