Bug 216996

Summary:	No sound on an iMac 18,3
Product:	Drivers	Reporter:	François Romain (francoisromain)
Component:	Sound(ALSA)	Assignee:	Jaroslav Kysela (perex)
Status:	NEW ---
Severity:	normal
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	Linux 6.1.8-200.fc37.x86_64 x86_64	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	alsa-info

Description François Romain 2023-02-03 12:08:20 UTC

Created attachment 303681 [details]
alsa-info

Hello,

I just installed fedora 37 on an iMac 18,3 and there is no sound. 

in settings/sound/
- the selected output device is Dummy output and there is no other choice.
- there is no input.

I asked about this there https://unix.stackexchange.com/questions/734192/no-sound-on-an-imac-27-5k-2017-on-linux and I was pointed to report a bug here on kernel.org.

From the search results, I see this a [known issue](https://duckduckgo.com/?q=imac+2017+linux+no+sound) but I didn't find a solution. 

[This topic](https://bbs.archlinux.org/viewtopic.php?id=277990) seems to be similar, but it points to [this kernel module](https://github.com/egorenar/snd-hda-codec-cs8409) which I don't know how to use.

Thank you

Comment 1 François Romain 2023-02-06 08:20:09 UTC

The audio output and the internal speakers work after installing this module : https://github.com/egorenar/snd-hda-codec-cs8409.

Also, the mic input is now visible in the system settings but it still doesn't work.