Hi alain57, Seems this might be related to the following upstream bug in which a patch has been applied. Could you attach your dmidecode if this issue remains with the latest 2.6.31-4 kernel? Thanks.
http://bugzilla.kernel.org/show_bug.cgi?id=13121 Might also be related to bug 333386 but that was reported against an Acer 6920G. ** Bug watch added: Linux Kernel Bug Tracker #13121 http://bugzilla.kernel.org/show_bug.cgi?id=13121 ** Changed in: linux (Ubuntu) Status: New => Incomplete -- brightness dark and not working on acer 5715 https://bugs.launchpad.net/bugs/401591 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