https://bugs.freedesktop.org/show_bug.cgi?id=39550
--- Comment #12 from Emil Velikov <emil.l.veli...@gmail.com> 2011-09-25 04:21:32 PDT --- Rik Can you please indicate what exactly do you mean with "Brightness control does not work with this option for me." Does it work before suspending the system? Can you please attach your dmesg log, as it is the one relevant in this case (whereas xf86-video-nouveau, mesa and libdrm are not) Auke, Rik AFAIK brightness/backlight is(can be) controlled via 1. ACPI 2. platform specific - (asus-laptop, samsung-laptop, thinkpad ...) 3. the gpu/card itself On various system different ones work correctly By default nouveau does not register it's device if an ACPI one exists Note that the blob has similar behaviour but they have an option to override it. If you suspect that the ACPI backlight control is buggy you can disable it by appending "acpi_backlight=vendor" to your kernel command line This will fall back to either 2. or 3. - dmesg will tell you which one Feel free to give it a try Cheers Emil -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ Nouveau mailing list Nouveau@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/nouveau