Microphone mute Fn key doesn't work

[wessel-novacustom]

Component

Dasharo firmware

Device

NovaCustom V54 14th Gen, NovaCustom V56 14th Gen

Dasharo version

v0.9.0

Dasharo Tools Suite version

No response

Test case ID

No response

Brief summary

The microphone mute Fn key doesn't work, regardless of the OS

How reproducible

100% reproducible.

How to reproduce

1. Open a sound recording application like Audacity.
2. Recording the sound while keep talking.
3. Try to interrupt the recording with Fn + 4 (microphone mute)

Expected behavior

The microphone gets muted.

Actual behavior

The microphone doesn't mute.

Screenshots

No response

Additional context

If possible, this Fn shortcut may be enabled for:

• NV41 Series (12th Gen only)
• V54x Series (Meteor Lake, all variants)
• V56x Series (Meteor Lake, all variants)

It is not needed for other laptop series.

Solutions you've tried

No response

[mkopec]

Added firmware side fix in Dasharo/ec@c93707e

[mkopec]

Need to add a quirk to systemd hwdb, something like this: https://github.com/systemd/systemd/blob/d1b04f47e32bd1012ae2e3e6ac9159702463bf15/hwdb.d/60-keyboard.hwdb#L787

but using the actual micmute scancode that is generated on V5x0Tx. A temporary fix can be added to post-install steps.

[wessel-novacustom]

Yes, that needs to be done

[filipleple]

I've additionally enabled the Fn key for NV41 ADL in Dasharo/ec@12d626f and added the quirks for NV41 ADL and V5x to systemd in systemd/systemd@40ef5cc . The combination works as expected now:

[wessel-novacustom]

I've additionally enabled the Fn key for NV41 ADL in Dasharo/ec@12d626f and added the quirks for NV41 ADL and V5x to systemd in systemd/systemd@40ef5cc . The combination works as expected now [ ... ]

Amazing! Hopefully, the same can easily be done on the V54 Series (-TU and NVIDIA variants), as well as the V56 Series (-TU and NVIDIA variants), while it's being skipped for the other variants.

I will close the issue once it has been integrated in a release.

[mkopec]

On the firmware side this is integrated in rc5 for nvidia models. The fix is also implemented for -TU models, but it's not included in any release for those models yet.

[philipandag]

On V540TND v0.9.1-rc5 adding the change works #1006 (comment)

You only need to add the line:

KEYBOARD_KEY_81=f20

to /etc/udev/hwdb.d/60-keyboard.hwdb under evdev:atkbd:dmi:bvn*:bvr*:svnNotebook:pnV5xTNX_TND_TNE:*, run udevadm trigger and reboot. Then the mic mute key works perfectly.

[filipleple]

Just to clarify, manually adding the line shouldn't be necessary after the next systemd release, which should happen in a week or two. Then, just keeping the OS updated should do it.

[wessel-novacustom]

Great progress!

Is it also possible to enable this for Windows? It is not working on a V560TND running rc5.