There is noise for headphone playback after resume back from S3 for Dell XPS 13
Bug #1519168 reported by
Hui Wang
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
High
|
Hui Wang | ||
linux (Ubuntu) |
Fix Released
|
High
|
Hui Wang | ||
Trusty |
Fix Released
|
Undecided
|
Unassigned | ||
Vivid |
Fix Released
|
Undecided
|
Unassigned | ||
Wily |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
Steps:
1. Plug headset then check there is no noise
2. Make system enter into S3
3. Resume the system
4. Check the headset status
Expected results: Headset should not have any noise
Actual results: Headset got current noise after S3
This bug is used for tracking only, please do not triage.
Related branches
description: | updated |
Changed in hwe-next: | |
status: | New → In Progress |
assignee: | nobody → Hui Wang (hui.wang) |
importance: | Undecided → High |
Changed in linux (Ubuntu): | |
importance: | Undecided → High |
Changed in linux (Ubuntu Wily): | |
status: | New → Fix Committed |
tags: |
added: verification-done-wily removed: verification-needed-wily |
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commit 8c69729b4439bbd a88c3073df7243f 755cc418ed
Author: Hui Wang <email address hidden>
Date: Tue Nov 24 11:08:18 2015 +0800
ALSA: hda - Fix headphone noise after Dell XPS 13 resume back from S3
We have a machine Dell XPS 13 with the codec alc256, after resume back
from S3, the headphone has noise when play sound.
Through comparing with the coeff vaule before and after S3, we found
restoring a coeff register will help remove noise.
BugLink: https:/ /bugs.launchpad .net/bugs/ 1519168
Cc: Kailang Yang <email address hidden>
Cc: <email address hidden>
Signed-off-by: Hui Wang <email address hidden>
Signed-off-by: Takashi Iwai <email address hidden>