Audio device is not available, instead it shows dummy output in the settings
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| HWE Next |
New
|
Undecided
|
Unassigned | ||
| OEM Priority Project |
New
|
Undecided
|
Unassigned | ||
| linux (Ubuntu) |
In Progress
|
Undecided
|
AceLan Kao | ||
| Jammy |
Invalid
|
Undecided
|
Unassigned | ||
| Noble |
In Progress
|
Undecided
|
AceLan Kao | ||
| linux-oem-6.5 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
| Jammy |
Fix Released
|
Undecided
|
AceLan Kao | ||
| Noble |
Invalid
|
Undecided
|
Unassigned | ||
Bug Description
[Impact]
Audio device is not available, instead it shows dummy output in the settings
[Fix]
SOF driver looks for a config which both sample width and valid bits are both 32 bits. However, the config in NHLT table is 32-bit sample width and 24-bit valid bits. Should ignore the valid bits in NHLT when the sample width is 32 bits.
Confirmed the below commit in v6.7-rc4 fix the issue
7b4c93a50a2e ALSA: hda: intel-nhlt: Ignore vbps when looking for DMIC 32 bps format
[Test case]
1. check audio input/output on the system
2. System can play and record audio normally
[Where problems could occur]
When the samples assumed to be vbps=32 then the 'noise' introduced by the lower two bits (channel number) have no real life implication on audio quality.
| Changed in linux (Ubuntu Jammy): | |
| status: | New → Invalid |
| Changed in linux (Ubuntu Noble): | |
| status: | New → In Progress |
| assignee: | nobody → AceLan Kao (acelankao) |
| Changed in linux-oem-6.5 (Ubuntu Jammy): | |
| status: | New → In Progress |
| assignee: | nobody → AceLan Kao (acelankao) |
| tags: | added: oem-priority originate-from-2043541 somerville |
| Changed in linux-oem-6.5 (Ubuntu Noble): | |
| status: | New → Invalid |
| tags: | added: originate-from-2043113 stella |
| Changed in linux-oem-6.5 (Ubuntu Jammy): | |
| status: | In Progress → Fix Committed |
| tags: | added: originate-from-2047794 |
| tags: |
added: verification-done-jammy-linux-oem-6.5 removed: verification-needed-jammy-linux-oem-6.5 |
| tags: | added: kernel-daily-bug |
This bug is awaiting verification that the linux-oem- 6.5/6.5. 0-1013. 14 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification- needed- jammy-linux- oem-6.5' to 'verification- done-jammy- linux-oem- 6.5'. If the problem still exists, change the tag 'verification- needed- jammy-linux- oem-6.5' to 'verification- failed- jammy-linux- oem-6.5' .
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/ /wiki.ubuntu. com/Testing/ EnableProposed for documentation how to enable and use -proposed. Thank you!