** Summary changed: - Thinkpad T43p brightness up not generating ACPI event + Brightness up not generating ACPI event on Thinkpad T43p, T42, X31
** Description changed: Binary package hint: linux-image-2.6.24-16-generic On my Thinkpad T43p, using ubuntu hardy, the brightness down button generates an ACPI event, but the brightness up button does not. Brightness is still adjusted in hardware, however, there is an interesting effect when using gnome power-manager. When turning the brightness up, it's handled all in hardware, but when you press the brightness down button, the brightness returns to the last stored brightness that gpm knew about, which is most likely at the bottom unless you use the brightness applet. So the net effect is that you can turn the brightness up incrementally, but as soon as you press the down key, it goes all the way to the bottom. Killing gnome-power-manager prevents this behaviour, but causes other problems. + + Apparently this affects a number of thinkpad models. I've updated the + Summary to include those found so far. -- Brightness up not generating ACPI event on Thinkpad T43p, T42, X31 https://bugs.launchpad.net/bugs/222796 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
