The bug also affects Lenovo Ideapad U150. On this laptop, the brightness buttons work, the brightness applet notification pops up to show current brightness level and the respective files in /sys and /proc folders are updated with the brightness value, but the display brightness level stays at maximum value.
Only by using setpci command I am able to set display brightness, so I am using /etc/acpi/ideapad-video.sh script as a temporary workaround. I've also tried upgrading to 2.6.36 kernel from the Kernel PPA, but there is no improvement to the brightness setting issue. -- Screen brightness not controllable on Lenovo Ideapad S10-3, U350, and Z360 https://bugs.launchpad.net/bugs/538256 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
