hdajackretask from alsa-tools doesn't seem to work on Gentoo

[igorzash]

Hello.
I have some problems with hdajackretask in Gentoo.
I've used it in the past on other distros (Arch, Fedora, Ubuntu) to set up a subwoofer for my Asus laptop.
Everything worked fine.

I've decided to try to understand what's going wrong.
I discovered that it creates a temporary directory with a firmware patch, which sets custom pin configuration, that is actually supported by Linux kernel (from their doc page for HD-Audio).
But it wasn't able to place it in /lib/firmware, as well as hda-jack-retask.conf in /etc/modprobe.d.
I placed those files manually, but it also didn't work.
It seems strange to me because I've built kernel with proper options. Maybe it is something Gentoo specific or I missed something?

I also tried dynamic reconfiguration for HD-Audio, but it also didn't work.

[eccerr0r]

Seconding this but not sure if it's bit rot or not. Does it work for anyone anymore? While the boot override process might or might not work as it's startup script dependent (though it *should* work for systemd as this is the "monoculture"), the "apply" ought to work as this is just kernel dependent... but it does not.

When I hdajackretask, seems everything goes in but when it actually does the final retask, I get this in dmesg:

Code: Select all

[  157.066706] snd_hda_codec_idt hdaudioC0D0: hda-codec: reconfiguring
[  157.100326] BUG: kernel NULL pointer dereference, address: 0000000000000a08
[  157.100334] #PF: supervisor read access in kernel mode
[  157.100337] #PF: error_code(0x0000) - not-present page
[  157.100340] PGD 0 P4D 0 
[  157.100347] Oops: 0000 [#1] SMP PTI
[  157.100352] CPU: 1 PID: 56 Comm: kworker/1:1 Not tainted 5.10.61-gentoo #1

Ouch smells like bitrot or some bug...