snd_pcsp can take precedence of soundcards
Bug #242966 reported by
Wit Wilinski
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
alsa-driver (Debian) |
Fix Released
|
Unknown
|
|||
alsa-driver (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Intrepid |
Invalid
|
Undecided
|
Unassigned | ||
alsa-utils (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | ||
Intrepid |
Fix Released
|
Medium
|
Unassigned | ||
pulseaudio (Ubuntu) |
Fix Released
|
High
|
Luke Yelavich | ||
Intrepid |
Fix Released
|
High
|
Luke Yelavich |
Bug Description
(Ubuntu Intrepid)
Latest changes in ALSA brought a snd-pcsp driver (and gave its module -2 index), which loads automatically. In my case, it took place of a USB soundcard (card index 1 changed to 2, after recent changes). As configuration files (/etc/asound.conf) refer to this card numerically, sound stopped working. Sound might also become very noisy in some laptops due to snd-pcsp.
cat /proc/asound/cards revealed the source of the problem (the snd-pcsp module).
Suggested solution: blacklist snd-pcsp, which will eliminate this problem OR throw this module out of the kernel.
Changed in pulseaudio: | |
importance: | Undecided → Medium |
status: | New → Confirmed |
Changed in pulseaudio: | |
milestone: | none → intrepid-alpha-4 |
Changed in pulseaudio: | |
importance: | Medium → High |
Changed in pulseaudio: | |
status: | New → Fix Released |
Changed in alsa-driver: | |
status: | Unknown → Fix Released |
tags: | added: iso-testing |
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I can confirm this on Intrepid
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xfe0f8000 irq 20
Internal PC-Speaker at port 0x61
1 [pcsp ]: PC-Speaker - pcsp
0 [SI7012 ]: ICH - SiS SI7012
SiS SI7012 with ALC655 at irq 18
Internal PC-Speaker at port 0x61
1 [pcsp ]: PC-Speaker - pcsp