On Thu, Dec 08, 2011 20:18:21 PM +0100, Marco Fioretti wrote: > I've got a HP G6 1273SL laptop with this chipset and a live cd of > Fedora 16 x86_64, KDE spin... when I [boot] the screen goes > completely black. > > if I... add to its initrd line the two parameters > > acpi_osi=Linux acpi_backlight=vendor > > Fedora boots without problems, but the laptop is quite warm.
If I check the graphich chips status, I get: #> cat /sys/kernel/debug/vgaswitcheroo/switch 0:IGD:+:Pwr:0000:00:02.0 1:DIS: :Pwr: etc etc... so, if I understand correctly, I MUST also disable the discrete graphic chip with a script like this: ##################################################### #! /bin/bash modprobe radeon echo IGD > /sys/kernel/debug/vgaswitcheroo/switch echo OFF > /sys/kernel/debug/vgaswitcheroo/switch ##################################################### and then add to /etc/rc/rc.local Is this -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
