I have the same problem since natty upgrade, on a Panasonic Toughbook CF-T5 Also Fn keys for screen brightness stopped working, they used to work out of the box in Lucid. Volume up/down/mute Fn keys work as usual. I do have a /sys/class/backlight/panasonic/brightness that can be manually changed, and that works.
I did look into ACPI events a long time ago, but I have a feeling a lot changed since then, so any hint about where to look first would be appreciated. Actually I did not even get how to run acpid with -d option with the new "upstart" system. -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kdebase-workspace in Ubuntu. https://bugs.launchpad.net/bugs/775624 Title: Screen brightness slider has no effect -- kubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
