FWIW, I disabled all the powersaving "features" in KDE via the System
Settings module, and killed the KDE battery monitor in task manager and
just use gnome-power-manager.
With gnome-power-manager the backlight keys work, the screen dims
automatically, etc. Of course, I've also got the nomodeset and
acpi_baclight=vendor as kernel boot params. I read on lesswatts.org that
gpm is always waking the CPU, but I don't have that issue on my machine.
There is some backlight flickering sometimes.
4810T, 1.10 BIOS, Fedora 12 beta.
Jim
On 11/16/2009 04:33 PM, Miguel Branco wrote:
@Dan
Thanks for the reply. I'm using Ubuntu Karmic with kubuntu-desktop
installed on top.
I bricked my first timeline on a BIOS downgrade so I'm not feeling too
bold on trying an upgrade. My BIOS (for the 4810t) is 1.10.
@Thomas
Add the following to the GRUB_CMD_LINUX_DEFAULT entry in
/etc/default/grub:
nomodeset acpi_backlight=vendor
and then run sudo update-grub on the terminal.
This fixed it all in gnome for me and others.
On Mon, Nov 16, 2009 at 23:13, Dan LeVasseur <[email protected]
<mailto:[email protected]>> wrote:
What version are you using? With my 4810tz BIOS 1.3 Kubuntu 9.10
the brightness keys worked out of the box and incremented levels
20 at a time. Adding the nomodeset.... allowed me to change
increments by 10.
Might be BIOS that fixed it.
-Dan
On Mon, Nov 16, 2009 at 2:50 PM, Miguel Branco <[email protected]
<mailto:[email protected]>> wrote:
Hello there,
I'm happy with my 4810T so far, I have no noise at all and
almost everything works.
However, while the 'nomodeset acpi_backlight=...' fix for the
backlight is perfect in Gnome, it doesn't work at all in KDE.
The script fix works, but it's unpractical to input the
password each time you want to change the brightness.
I'm not even mentioning that you lose the option of using the
built in sliders.
Does anyone know another option or hybrid way that works on
KDE? I'd even be happy if I could say setpci doesn't need sudo.
Thanks,
Miguel
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