So it's not thinkpad-acpi . The issue is very strange but basically any kernel past 2.6.22 displays it.
Now here is the kicker. The mute button actually mutes the. But the software (Gnome or KDE) does not pick it up when running on a kernel past 2.6.22. So the mixers are not aware that things have been muted. So you have no visual that things are muted. Had a discussion on ibm-acpi-devel but it's not archived SO I'll past my results here: System: Thinkpad T61 Vendor: LENOVO Firmware Version: 7LETA7WW (2.07) EC Version: 1.08 Here are my test results (These are kernel.org kernels): kernel 2.6.22.15 (w/ thinkpad-acpi v0.14) = Works great Gnome can see mute button pressed Kernel 2.6.22.15 (with thinkpad-acpi v0.19) = Works great Gnome can see mute button pressed kernel 2.6.23.13 (w/ thinkpad-acpi v0.16) = Gnome does NOT see mute is pressed Mute button is not recogonized when try to associate it with a keyboard action using gnome-keybing-properties kernel 2.6.24-rc7 (w/ thinkpad-acpi v0.17) = Gnome does NOT see mute is pressed Mute button is not recogonized when try to associate it with a keyboard action using gnome-keybing-properties Kernel 2.6.24-rc7 (with thinkpad-acpi v0.19) = Gnome does NOT see mute is pressed Mute button is not recogonized when try to associate it with a keyboard action using gnome-keybing-properties -- Thinkpad T61 mute button no longer works in Hardy. It's back! https://bugs.launchpad.net/bugs/181177 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs