I have the same issue on ubuntu 14.04 for HP Elitebook 8560w. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1349002
Title: Screen brightness cannot be changed on HP EliteBook 8560w Status in “linux” package in Ubuntu: Incomplete Bug description: I cannot change the screen brightness on my HP Elitebook 8560w. If I use the keys for changing the screen brightness (fn + f9 or fn + f10), the on-screen display appears and the displayed percentage changes as intended but the actual screen brightness does not change (i.e. it remains at full brightness). Similarly, if I do not use my computer for some time, the on-screen display appears and indicates the the screen brightness is reduced (lower percentage) but the actual screen brightness remains unchanged (at full brightness). I have this computer since November 2011 and I had always the latest Kubuntu version installed. Changing the screen brightness always worked until and including Kubuntu 13.10. However, it stopped working when I upgraded to Kubuntu 14.04. I have upgraded my computer's BIOS to the latest version (F.42) but this did not help. As I also experience another bug (1337579) with Kubuntu 14.04, I have upgraded the kernel to the upstream kernel (3.14.4-031404) and a mainline kernel (3.16.0-031600rc6) but the bug occurs with all three kernel versions. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1349002/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
