Sometimes it is possible to change the brightness with command: setpci -s 00:02.0 F4.B=FF where the value can be from 00 to FF But sometimes the laptop booted with no backlight at all, and it is posible to change the brightness in such cases...
-- HP Touchsmart tm2 brightness level not changing https://bugs.launchpad.net/bugs/516772 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