Exactly same problem here with Vaio-VPCY11V9E. "acpi_video0", "acpi_video1" and "intel_backlight" folders at /sys/class/backlight and only intel_backlight works when echo'ing values to brightness with ubuntu 11.10
This is a really PITA, is there any workaround available? It would be a huge pain-saver? At least till this bug is closed... -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. https://bugs.launchpad.net/bugs/524967 Title: Screen brightness doesn't work on Vaio Y To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/524967/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
