No sound on an iMac 27 5k 2017 on Linux

I just installed fedora 37 on an iMac 18,3. Everything is fine except there is no sound. * * * settings/sound/ - the selected output device is Dummy output and there is no other choice. - there is no input. uname -srm

Linux 6.1.8-200.fc37.x86_64 x86_64

lpsci -v

00:1f.3 Audio device: Intel Corporation 100 Series/C230 Series Chipset Family HD Audio Controller (rev 31)
	Subsystem: Intel Corporation Device 7270
	Flags: bus master, fast devsel, latency 64, IRQ 60
	Memory at 92720000 (64-bit, non-prefetchable) [size=16K]
	Memory at 4000000000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: 
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere HDMI Audio [Radeon RX 470/480 / 570/580/590]
	Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere HDMI Audio [Radeon RX 470/480 / 570/580/590]
	Flags: bus master, fast devsel, latency 0, IRQ 61
	Memory at 92660000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: 
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

lsmod | grep snd

snd_seq_dummy          16384  0
snd_hrtimer            16384  1
snd_hda_codec_cs8409    36864  1
snd_hda_codec_generic    98304  1 snd_hda_codec_cs8409
snd_hda_codec_hdmi     86016  1
ledtrig_audio          16384  1 snd_hda_codec_generic
snd_hda_intel          61440  3
snd_intel_dspcfg       36864  1 snd_hda_intel
snd_intel_sdw_acpi     20480  1 snd_intel_dspcfg
snd_hda_codec         184320  4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_codec_cs8409,snd_hda_intel
snd_hda_core          114688  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_codec_cs8409,snd_hda_intel,snd_hda_codec
snd_hwdep              16384  1 snd_hda_codec
snd_seq                94208  7 snd_seq_dummy
snd_seq_device         16384  1 snd_seq
snd_pcm               151552  4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
snd_timer              49152  3 snd_seq,snd_hrtimer,snd_pcm
snd                   126976  18 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_codec_cs8409,snd_hda_intel,snd_hda_codec,snd_timer,snd_pcm
soundcore              16384  1 snd

cat /proc/asound/card0/codec* | grep Codec

Codec: Cirrus Logic CS8409

cat /proc/asound/card1/codec* | grep Codec

Codec: ATI R6xx HDMI

* * * From the search results, I see this a [known issue](https://duckduckgo.com/?q=imac+2017+linux+no+sound) . Most topics don't provide 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. Also, I tried sudo nano /etc/modprobe.d/alsa-base.conf

options snd-hda-intel model=auto,imac27

But it does not work. *** Do you know how to have the audio input and output work on an iMac 27 on linux? Thank you