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I had a problem with my sound in ubuntu 20.04 and this fix Ubuntu 20.04 LTS no sound on MacbookPro did work for me for a couple of months.

I updated my kernel to 5.4.0-48-generic (latest Ubuntu kernel), it cannot be compiled anymore and the solution does not work.

Errors linking are:

ERROR: "snd_hda_jack_detect_enable_callback" [/home/d/macBookPro/snd_hda_macbookpro/build/hda-5.4.0/snd-hda-codec-cirrus.ko] undefined!
ERROR: "snd_hda_jack_detect_state" [/home/d/macBookPro/snd_hda_macbookpro/build/hda-5.4.0/snd-hda-codec-cirrus.ko] undefined!
ERROR: "snd_hda_jack_tbl_get" [/home/d/macBookPro/snd_hda_macbookpro/build/hda-5.4.0/snd-hda-codec-cirrus.ko] undefined!

uname -a output reports the following:

Linux d-MacBookPro 5.4.0-48-generic #52-Ubuntu SMP Thu Sep 10 10:58:49 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

Any hint appreciated, thanks

Pizza
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dario1001
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1 Answers1

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I had same issue. I solved this by using previous kernel version 5.4.0-47-generic. See How can I boot with an older kernel version? to change it.

Prayogo Cendra
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