And this one from Ubuntu 26.04 daily 02 Feb 2026:
test@test-HP-EliteBook-860-16-inch-G11-Notebook-PC:~$ sudo apt-cache policy
firmware-sof-signed
[sudo: authenticate] Password:
firmware-sof-signed:
Installed: (none)
Candidate: 2025.05.1-1build1
Version table:
2025.05.1-1build1 500
500 http://archive.ubuntu.com/ubuntu resolute/main amd64 Packages
test@test-HP-EliteBook-860-16-inch-G11-Notebook-PC:~$ sudo apt install
firmware-sof-signed
Installing:
firmware-sof-signed
Summary:
Upgrading: 0, Installing: 1, Removing: 0, Not Upgrading: 0
Download size: 1,696 kB
Space needed: 40.0 MB / 456 GB available
Get:1 http://archive.ubuntu.com/ubuntu resolute/main amd64 firmware-sof-signed
all 2025.05.1-1build1 [1,696 kB]
Fetched 1,696 kB in 1s (1,828 kB/s)
Selecting previously unselected package firmware-sof-signed.
(Reading database ... 94524 files and directories currently installed.)
Preparing to unpack .../firmware-sof-signed_2025.05.1-1build1_all.deb ...
Unpacking firmware-sof-signed (2025.05.1-1build1) ...
dpkg: error processing archive
/var/cache/apt/archives/firmware-sof-signed_2025.05.1-1build1_all.deb
(--unpack):
unable to create '/usr/lib/firmware/intel/sof/community/sof-apl.ri.dpkg-new'
(while processing './usr/lib/firmware/intel/sof/community/sof-apl.ri'):
Read-only file system
dpkg: error while cleaning up:
unable to remove newly-extracted version of
'/usr/lib/firmware/intel/sof/community/sof-apl.ri': Read-only fil
e system
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)
Errors were encountered while processing:
/var/cache/apt/archives/firmware-sof-signed_2025.05.1-1build1_all.deb
Error: Sub-process /usr/bin/dpkg returned an error code (1)
test@test-HP-EliteBook-860-16-inch-G11-Notebook-PC:~$
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2141753
Title:
Dummy Output as output sound device in TPM FDE mode
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firmware-sof/+bug/2141753/+subscriptions
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