https://bugzilla.novell.com/show_bug.cgi?id=719076 https://bugzilla.novell.com/show_bug.cgi?id=719076#c18 Michael Chang <mchang@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |Druonysus@gmail.com --- Comment #18 from Michael Chang <mchang@suse.com> 2011-11-10 10:06:40 UTC --- (In reply to comment #17)
I thought this issue related to i915's combination mode. Michael Chang have experience on it.
This issue is much like i915 kms regression from 2.6.38-rc8 (bko#31522). No good fix to it so far as it is firmware(bios) related (As I know this regression only reported on ACER laptops, not seen on any other model so far). Well .. to workaround it is possible by accessing the LPBC register directly instead of through ACPI (it also access LPBC but somewhat in a complicated path..). Let me know how the commands work on your side ? $ su $ setpci -s $(lspci | grep -i vga | cut -d" " -f1) F4.B=22 $ setpci -s $(lspci | grep -i vga | cut -d" " -f1) F4.B=66 $ setpci -s $(lspci | grep -i vga | cut -d" " -f1) F4.B=AA $ setpci -s $(lspci | grep -i vga | cut -d" " -f1) F4.B=FF Your back-light should should be at max level when set F4.B=FF Thanks. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.