Microphone Switch (FN+4) does not work

[philipanda]

Component

Dasharo firmware

Device

NovaCustom V56 14th Gen

Dasharo version

v1.0.0-rc10

Dasharo Tools Suite version

n/a

Test case ID

ECR034

Brief summary

The EC consumes the keypress - the character "4" is not being printed, libinput debug-events does not register it, but the internal microphone stays ON

How reproducible

100%

How to reproduce

https://docs.dasharo.com/unified-test-documentation/dasharo-compatibility/31G-ec-and-superio/#ecr035201-soft-switch-microphone-key-ubuntu

Expected behavior

As in docs, no sound registered from the mic

Actual behavior

The mic registers sounds no matter the mic switch

Screenshots

No response

Additional context

No response

Solutions you've tried

No response

[philipanda]

Ubuntu 24.04.3 LTS includes systemd version 255 as of 9.01.2026, but the HWDB rules for the mic switch and MTL laptops only appeared in systemd version 257 .

Adding instructions to docs as its not up to OS publishers to update packages
Dasharo/docs#1205
Dasharo/dasharo-tools#13

[philipanda]

Does not work on NV41MZ (TGL) on both Ubuntu and Windows. The script https://docs.dasharo.com/unified/clevo/post-install/#microphone-mute-key-enablement does not accept the TGL laptops and forcing it to run does not fix it either meaning it's an issue with the firmware or with the script.

[philipanda]

After a fix to the firmware (Dasharo/ec#89) and the patching script (Dasharo/dasharo-tools#17) the key works on Ubuntu.
It still won't work on Windows until we figure out a way to make Windows actually use it: #1006 (comment)