I'm having the same issue with a sony vaio vgn-s1xp on Fiesty Herd 5: FN+F6/F7 don't change brightness and the Brightness applet can't get laptop panel brightness. The Fn keys worked correcly in Edgy.
Here is my data: smbios.chassis.type = 'Notebook' (string) smbios.chassis.manufacturer = 'Sony Corporation' (string) smbios.system.uuid = 'xxxx-xx-xx-xxxx' (string) smbios.system.serial = 'xxxxxxxx-xxxxxxxx' (string) smbios.system.version = 'J0009F44' (string) smbios.system.product = 'VGN-S1XP(IT)' (string) smbios.system.manufacturer = 'Sony Corporation' (string) smbios.bios.release_date = '12/23/2004' (string) smbios.bios.version = 'R0072G4' (string) smbios.bios.vendor = 'Phoenix Technologies LTD' (string) Hope this is the right thread to post on -- [Feisty] Thinkpad (all models) LCD brightness control cycles between lowest settings only https://launchpad.net/bugs/81407 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
