T61 (6465CTO, Intel X3100/GM965) I have the same thing here. some observations and possible fixes/workarounds:
slow response/pausing behavior: - brightness controls are responsive right after a reboot - I can hit brightness up 100 times with no effect. - trigger: If I use the acpi/end key to bring the brightness all they way down to it's lowest level, I then only have 2 or 3 more brightness events which are responsive. After that, the slow behavior remains until a reboot. multple events solved(?): - After removing some files from /etc/acpi/events and restarting acpid, the multiple event triggering stopped, and only one event happened. - The event files removed are: thinkpad-brightness-down, thinkpad-brightness-up, video_brightnessdown, video_brightnessup - the thinkpad-brightness-* files shouldn't matter if you have a lenovo according to dmidecode, but I yanked them anyway to make for cleaner acpid debug output. - gnome-power-manager is now the only program handling events from the acpi brightness. kill g-p-m, and the brightness controls become non-functional. -- (Intrepid)T61 brightness control goes very slow https://bugs.launchpad.net/bugs/289701 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
