https://bugzilla.kernel.org/show_bug.cgi?id=198597
--- Comment #7 from Zhang Rui (rui.zh...@intel.com) --- (In reply to Mingcong Bai from comment #6) > (In reply to Zhang Rui from comment #5) > > (In reply to Mingcong Bai from comment #0) > > > On a Lenovo ThinkPad L420 (Type 7854)... > > > > > > - Neither the LED nor the button for Microphone Mute works, the > > > `acpi_listen` command does not return with any readings. Pressing the > > button > > > won't mute the microphone, nor would it light up the LED. However, using > a > > > volume mixer application (say, the one I used was from MATE Desktop) and > > > drag the microphone volume all the way down, or checking "mute" will > light > > > up the button. > > > > when does this happen? > > It happens the moment after I booted Linux Kernel from GRUB (my bootloader > of choice), and when I'm not done booting Windows (along with the Lenovo > drivers supplied). > > In short, it happens when I'm running Linux... or any other OS(es) without > driver or system support. > > > > - The mute button works, but the LED does not light up. The mute LED > could > > > be lit or unlit before booting Linux. Pressing the button registers the > > > following with the `acpi_listen` command: > > > > > > > when does this happen? > > Same scenario as above. > No, the above two symptoms are exclusive. there is no acpi_listen output in the first symptom, while there is, in the second one. Thus I don't understand why you get different results in the same scenario. -- You are receiving this mail because: You are watching the assignee of the bug. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
