Similar problem with snd-hda-codec-cs8409 on iMac 18,3 has already been reported
216996 – No sound on an iMac 18,3 | bugzilla.kernel.org
Similar problem with snd-hda-codec-cs8409 on iMac 18,3 has already been reported
216996 – No sound on an iMac 18,3 | bugzilla.kernel.org