Emiel, I hope this isn't a silly question, but did you still need nomodeset and acpi_backlight=vendor as kernel boot parameteres?
Jim On Thursday 26 November 2009 13:22:05 Emiel Kollof wrote: > Maybe you should update your BIOS. I upgraded to 2.31 on my 5810T and > all the backlight issues are gone with Ubuntu *and* Fedora 12. > > 2009/11/26 JimboJones <[email protected]>: > > 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]> 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]> 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 > >>> > >>> _______________________________________________ > >>> Mailing list: https://launchpad.net/~acertimeline > >>> Post to : [email protected] > >>> Unsubscribe : https://launchpad.net/~acertimeline > >>> More help : https://help.launchpad.net/ListHelp > > > > _______________________________________________ > > Mailing list: https://launchpad.net/~acertimeline > > Post to : [email protected] > > Unsubscribe : https://launchpad.net/~acertimeline > > More help : https://help.launchpad.net/ListHelp > > > > > > _______________________________________________ > > Mailing list: https://launchpad.net/~acertimeline > > Post to : [email protected] > > Unsubscribe : https://launchpad.net/~acertimeline > > More help : https://help.launchpad.net/ListHelp > _______________________________________________ Mailing list: https://launchpad.net/~acertimeline Post to : [email protected] Unsubscribe : https://launchpad.net/~acertimeline More help : https://help.launchpad.net/ListHelp
