No, I have not tried that yet, as I haven’t had the chance to. Additionally, as I mentioned earlier, I am using an FDE+TPM setup, which isn’t supported in Ubuntu 22.04.
Regarding your suggestion to try a newer version of Ubuntu, I noticed that the 6.11 kernel is available for the pc-kernel snap. I updated my Ubuntu 24.04 installation to the 6.11 kernel using the following command:
sudo snap refresh pc-kernel --channel=24.10/stable
But unfortunately, I still don’t have audio, even with 6.11, so I did a bit more research:
I came across this page: Installing Debian on HP EliteBook 860 G11, which describes a similar laptop model with the same audio device and mentions that firmware-sof-signed is necessary, so I suspect that non-free third-party firmware drivers from the firmware-sof-signed package might be required for my laptop as well.
I tried installing the package with the following command:
$ sudo apt install firmware-sof-signed
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following NEW packages will be installed:
firmware-sof-signed
0 upgraded, 1 newly installed, 0 to remove and 14 not upgraded.
Need to get 7,170 kB of archives.
After this operation, 10.1 MB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 firmware-sof-signed all 2023.12.1-1ubuntu1.2 [7,170 kB]
Fetched 7,170 kB in 2s (4,748 kB/s)
Selecting previously unselected package firmware-sof-signed.
(Reading database ... 117322 files and directories currently installed.)
Preparing to unpack .../firmware-sof-signed_2023.12.1-1ubuntu1.2_all.deb ...
Unpacking firmware-sof-signed (2023.12.1-1ubuntu1.2) ...
dpkg: error processing archive /var/cache/apt/archives/firmware-sof-signed_2023.12.1-1ubuntu1.2_all.deb (--unpack):
error creating directory './lib/firmware/intel/sof': Read-only file system
dpkg: error while cleaning up:
unable to remove newly-extracted version of '/lib/firmware/intel/sof': Read-only file system
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)
Errors were encountered while processing:
/var/cache/apt/archives/firmware-sof-signed_2023.12.1-1ubuntu1.2_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
However, I don’t think it’s possible to use this package with a TPM+FDE setup and the snap kernel, as adding additional kernel modules isn’t supported, as mentioned in this comment: TPM-backed Full Disk Encryption is coming to Ubuntu - Discussion - #4 by jamesps.
So I guess it’s either live with no audio or stop using the TPM+FDE feature and type two passwords when I boot my laptop. It’s a disappointing trade-off…