Hello, thanks for your report! Due to your link, i have testet die "acpi_osi= " parameter again and against my first description (i was able to adjust die brightness via fn keys once a time #9) the brightness stand still on 100%, but the difference to other parameters is that the notification daemon show me the reaction.
The problem is may a clash between backlight providers ... https://bugs.freedesktop.org/show_bug.cgi?id=81762 (Comment 6). Here i found more information about two patches https://bugzilla.kernel.org/show_bug.cgi?id=70241 (Comment 94,92). But it seems there is no proper solution for me so far ... :( Regards, patrice ** Bug watch added: freedesktop.org Bugzilla #81762 https://bugs.freedesktop.org/show_bug.cgi?id=81762 ** Bug watch added: Linux Kernel Bug Tracker #70241 http://bugzilla.kernel.org/show_bug.cgi?id=70241 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers-319 in Ubuntu. https://bugs.launchpad.net/bugs/1263498 Title: Asus G75VX, can not modify brightness Status in nvidia-graphics-drivers-319 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-331 package in Ubuntu: Confirmed Bug description: 1. Ubuntu 13.10 2. N: Unable to locate package nvidia-graphics-drivers-319 3. I expected that when I changed the brightness level for my laptop monitor that the brightness would also change. 4. Instead, the brightness always stays at 100% I have tried every configuration of grub that I have seen online or been asked to try on freenode.net #ubuntu by 3 different people. Nothing seems to fix this problem. The file for the brightness is always updated but it is like the driver never tells the hardware to change the brightness. I have tried Tried : acpi_backlight=vendor pcie_aspm=force acpi_osi='!Windows 2012' Option "RegistryDwords" "EnableBrightnessControl=1" echo 50 > /sys/class/backlight/acpi_video0/brightness echo 50 > /sys/class/backlight/acpi_video1/brightness echo 50 > /sys/class/backlight/asus/brightness nothing seems to work (the files are of course updated but the monitor rests at 100% brightness) I have also tried the XOrg-server and nvidia-304 drivers. They all have the same result, nothing. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: nvidia-319 319.32-0ubuntu7 ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7 Uname: Linux 3.11.0-14-generic x86_64 NonfreeKernelModules: wl nvidia ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 Date: Sun Dec 22 16:16:35 2013 InstallationDate: Installed on 2013-10-27 (55 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MarkForUpload: True SourcePackage: nvidia-graphics-drivers-319 UpgradeStatus: No upgrade log present (probably fresh install) modified.conffile..etc.modprobe.d.nvidia.319.hybrid.conf: [deleted] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-319/+bug/1263498/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp