Public bug reported:
Binary package hint: linux-source-2.6.20
The ICH7 sound card on this Sony VAIO VGN-FE41E notebook works fine, until it
is suspended to RAM and resumed again. When a sound is played, it seems to
take about half a second of sound and repeats it lots of times. Then it takes
the next half a second and does it again, etc. until the sound is finished.
Unloading/reloading the snd-hda-intel module makes the soundcard work again
correctly.
Inspired by bug #55071, I looked at the contents of /proc/asound/card0/codec#0
and found these differences between its contents when working correctly, and
after a module reload. There was no difference between a fresh boot and a
module reload after suspend:
--- card0codec0pin_freshboot 2007-04-02 11:47:10.000000000 +0200
+++ card0codec0pin_resume 2007-04-02 11:45:32.000000000 +0200
@@ -40,7 +40,7 @@
0x09
Node 0x09 [Audio Selector] wcaps 0x300903: Stereo Amp-In
Amp-In caps: N/A
- Amp-In vals: [0x0f 0x0f]
+ Amp-In vals: [0x80 0x80]
Connection: 1
0x15
Node 0x0a [Pin Complex] wcaps 0x400181: Stereo
This happens
** Affects: linux-source-2.6.20 (Ubuntu)
Importance: Undecided
Status: Unconfirmed
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snd-hda-intel: distorted sound after resume, until the module is reloaded
https://bugs.launchpad.net/bugs/100114
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