Internal speakers and headphone not working on Huawei notebook

[Jacek Blocki <jblocki@xxxxxxx>]

Hello,

I have Huawei notebook (KLVL-WXXW-PCB) with Ubuntu 22.04.3 LTS installed 
alongside Windows. In Ubuntu, neither internal speakers nor headphone 
jack work. I only see Dummy Output while trying to adjust volume, but 
sound works with external HDMI monitor. Internal speakers work with 
Windows, so I believe hardware is fine and kernel driver 
(snd_hda_intel?) needs to be modified to fix the problem.
I have submitted Ubuntu bug report back in January, but nobody touched 
it. So I try this list hoping for better result.

$ cat /proc/asound/cards
 0 [Generic        ]: HDA-Intel - HD-Audio Generic
                      HD-Audio Generic at 0xd03c0000 irq 64
 1 [acp            ]: acp - acp
                      HUAWEI-KLVL_WXXW-M1010-KLVL_WXXW_PCB

I run 6.5.0-26-generic kernel.

Regards, Jacek Błocki