I can confirm, changing the content of /sys/devices/platform/thinkpad_acpi/hotkey_mask to 0x00ffffff does enable some kind of notification for volume and brightness levels on TP43p. But it is surely not consistent with the overall volume settings.
Here is a test case on how to experience the awkwardness of volume setting with karmic on a TP43p (with or without workaround): 1. Set the volume to 0 with volume down HW button (not the mute button), 2. then adjust volume to maximum through gnome volume applet (up right). -> You will not hear anything. At least I did not. The other way round has same effect: 1. Set volume to 0 using gnome applet. 2. adjust volume with HW buttons -> You will not hear anything. At least I did not Looks like gnome applet and HW buttons are able to set the maximum volume to 0 without being able to change the volume back to normal vice versa. I guess this is due to the issues Henrique mentioned. HW buttons will set the HW volume to 0, gnome applet will set the software volume to 0. -- No notification when sliding audio volume, muting volume on ThinkPad X23, X31, X32, X41, X60, T22, T40, T42, T60, R50e, R51, R52 https://bugs.launchpad.net/bugs/357673 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
