Public bug reported:
## Description
After a kernel update within the 6.8.x series, the Intel onboard HDA audio
controller stopped working: the snd_hda_intel driver fails to communicate with
the codec at boot, so no sound card (other than the GPU HDMI audio) is exposed
to ALSA, and PipeWire falls back to a "Dummy Output".
This is a kernel regression, bisected upstream to commit:
4d4c10f763d7 "PCI: Explicitly put devices into D0 when
initializing"
which is tracked as an upstream regression on lists.linux.dev for the same
hardware (Intel 5-series PCH "Ibex Peak" HDA controller 8086:3b56 + Realtek
ALC269VB). See [email protected] thread "[REGRESSION][BISECTED]
HDA controller MMIO...". On these old chipsets, after this commit the HDA
controller MMIO registers read 0xFFFF, causing CORB timeouts and codec
enumeration failure.
## Hardware
- Machine: [Acer model, e.g. Acer Aspire — DMI: `sudo dmidecode -s
system-product-name`]
- HDA controller: 00:1b.0 [8086:3b56] rev 05 (Intel 5 Series/3400 Series, Ibex
Peak)
- Codec: Realtek ALC269VB (Subsystem Id: 0x10250359)
- GPU: AMD Radeon HD 5000 series (HDMI audio on card 1 works fine)
- OS: Ubuntu 24.04 LTS, GNOME, PipeWire 1.0.5
## Working / broken kernel versions
- WORKS: 6.8.0-31-generic (original 24.04 kernel)
- BROKEN: 6.8.0-139-generic (+several previous versions)
- Also verified working on the same machine with Linux Mint / kernel
6.1.0-49-amd64
- Neither a cold boot (full shutdown, battery removed, several minutes) nor
module options (probe_only=1, probe_mask=1, single_cmd=1, power_save=0)
work around the issue.
## Steps to reproduce
1. Boot Ubuntu 24.04 with kernel >= 6.8.0-139
2. Run: aplay -l
-> Only "card 1: HDMI [HDA ATI HDMI]" is listed; the analog HDA card is
missing.
3. Run: wpctl status
-> Only sink available: "Dummy Output".
## Relevant dmesg output
[ 7.236527] snd_hda_intel 0000:00:1b.0: enabling device (0000 -> 0002)
[ 7.238138] snd_hda_intel 0000:00:1b.0: number of I/O streams is 30, forcing
separate stream tags
[ 7.342564] snd_hda_intel 0000:00:1b.0: CORB reset timeout#2, CORBRP = 65535
[ 7.342733] hdaudio hdaudioC0D0: no AFG or MFG node found
[ 7.342751] hdaudio hdaudioC0D1: no AFG or MFG node found
[ 7.342763] hdaudio hdaudioC0D2: no AFG or MFG node found
[ 7.342778] hdaudio hdaudioC0D3: no AFG or MFG node found
[ 7.342781] snd_hda_intel 0000:00:1b.0: no codecs initialized
## Expected behavior
The ALC269VB codec is enumerated and the analog sound card appears as
"card 0: MID [HDA Intel MID], device 0: ALC269VB Analog", as it does with
kernel 6.8.0-31 and with kernel 6.1.0-49-amd64 on the same machine.
## Additional context
The upstream regression was bisected to commit 4d4c10f763d7 ("PCI: Explicitly
put devices into D0 when initializing"), first appearing in v6.16 upstream and
still present as of recent mainline rc kernels. If this commit (or its
backport) was pulled into the Ubuntu 6.8.x stable updates, that would explain
the breakage starting with 6.8.0-[xx]. A revert or a quirk for the 5-series HDA
controller (8086:3b56) would restore audio for this hardware family.
## Workaround
Staying on linux-image-unsigned-6.8.0-31-generic restores audio.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2169490
Title:
[Regression] snd_hda_intel fails to initialize on Intel 5-series (Ibex
Peak) HDA: "CORB reset timeout#2, CORBRP = 65535" / "no codecs
initialized" — works on 6.8.0-31, broken on 6.8.0-139
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2169490/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
