The backlight keys (fn+up/dwn), the wlan switch (fn+f9) and the brightness function keys (fn+f5/f6) as well generate "unknown key" events and have not the intended effect.
Writing to /proc/acpi/video/NVID/LCD/brightness under X has no effect (see SonniesEdge). However, this works outside of X (e.g. ctrl+alt+f1 terminal). This is obviously a bug in the NVIDIA driver, as with the default unaccelerated driver, this problem does not occur. The NVIDIA driver somehow blocks changes to the proc location from having any effect. -- backlight brighness control does not work (Samsung Q45 with Nvidia GForce 8400M) https://bugs.launchpad.net/bugs/146710 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
