Public bug reported:
Hi,
I'm running the noble prerelease on x86, and have had MODULES=dep set in
/etc/initramfs-tools/initramfs.conf for some time with no issues.
Over the weekend, I noticed updates to linux-image-6.8.0-11-generic,
linux-modules-6.8.0-11-generic etc, with an associated initramfs
rebuild.
After the next reboot, bluetooth was unavailable - via dmesg:
2024-03-04T13:32:47.584364+07:00 x1c9 kernel: Bluetooth: hci0: Failed to load
Intel firmware file intel/ibt-19-0-4.sfi (-2)
2024-03-04T13:32:47.584367+07:00 x1c9 kernel: Bluetooth: hci0: Reading
supported features failed (-56)
2024-03-04T13:32:47.584367+07:00 x1c9 kernel: Bluetooth: hci0: Error reading
debug features
2024-03-04T13:32:47.584368+07:00 x1c9 kernel: Bluetooth: hci0: HCI LE Coded PHY
feature bit is set, but its usage is not supported.
2024-03-04T13:32:47.584368+07:00 x1c9 kernel: Bluetooth: hci0: Failed to read
MSFT supported features (-56)
I'd set MODULES=dep via /etc/initramfs-tools/initramfs.conf many
releases ago (this system was installed with 21.04 and has been upgraded
to each of the six subsequent series in turn since), which had always
worked until now.
Reverting that to MODULES=most (which I believe is the default),
rebuilding the initramfs and rebooting has restored Bluetooth
functionality.
I'm not entirely sure which package this should be filed against - I
know the referenced intel/ibt-19-0-4.sfi file is actually part of linux-
firmware, and initramfs-tools is presumably also involved, but I see no
recent updates to either of those packages (last updated on my system in
early February, and I've definitely rebooted since then with no issues),
so I'm assuming this must be kernel-related, but I may be
misunderstanding how this all fits together.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2056111
Title:
Bluetooth driver disappears from initramfs with MODULES=dep on 24.04
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