I'm running Ubuntu 11.04 on a Lenovo ThinkPad W510 (Nvidia Quadro FX 880M graphics card). - setpci does nothing - using /proc/acpi tables to adjust display brightness doesn't work - Using /sys/class/backlight/... also doesn't work All of the above still aren't working if I pass the acpi_backlight=vendor kernel option in grub. All this does is locking the brightness to max.
If I kill X and work on the CLI, the brightness setting DOES work! It's only under gnome that I cannot adjust the brightness. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/538256 Title: Screen brightness not controllable on Lenovo Ideapad S10-3, U350, and Z360 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs