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I recently installed Ubuntu 6.11.0-17-generic on my MacBookPro14,1, and like many others my sound was broken, so I tried the common solution https://github.com/davidjo/snd_hda_macbookpro.git suggested by many threads like Ubuntu 20.04 LTS no sound on MacbookPro but when I try to run ./install.cirrus.driver.sh I get the following error:

Ubuntu linux kernel source not found in /usr/src: /usr/src/linux-source-6.11.0.tar.bz2
assuming the linux kernel source package is not installed
please install the linux kernel source package:
sudo apt install linux-source-6.11.0
NOTE - This does not work for HWE kernels

And when I run sudo apt install linux-source-6.11.0 I get this error:

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package linux-source-6.11.0
E: Couldn't find any package by glob 'linux-source-6.11.0'

My /usr/src directory contains the following:

linux-headers-6.11.0-17-generic  linux-headers-6.8.0-53-generic
linux-headers-6.8.0-53           linux-hwe-6.11-headers-6.11.0-17

I don't know what an "HWE kernels" is mentioned in the first error, but based on the existence of linux-hwe-6.11-headers-6.11.0-17 maybe my my kernel is HWE. Any ideas how to fix this?

My bad solution: I found it so difficult to downgrade my Linux kernel in Ubuntu like @robert rozee suggested, I switched to fedora instead, and this solution fixed my sound first try

noahlb123
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1 Answers1

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I have a Macbook pro 2017 and had same issue as yours. I downloaded the source directly from launchpad.net/ubuntu. I installed the package with gdebi, then the ran the cirrus driver install again. It fixed my sound and works perfectly.

https://launchpad.net/ubuntu/oracular/amd64/linux-source-6.11.0/6.11.0-4.4

Paul Caron
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