I've noticed a problem with pulseaudio too - every so often my machine
(msigx620 with 4MB RAM) starts running really slow. System Monitor
showed (today) 1.8GB of virtual memory used by pulseaudio - without
producing any sound. Uptime 5:35.
Otherwise Karmic is running pretty well.
uname -a
2.6.31-15-generic #50-Ubuntu SMP Tue Nov 10 14:53:52 UTC 2009 x86_64 GNU/Linux
Machine is nice and responsive now (once pulseaudio was killed).
Monitoring pulseaudio in System Monitor shows 2.8 MB of Virtual Memory
being consumed per minute - so 1.8GB would take roughly 10 hours - so
perhaps the rate varies.
I notice the following errors in the logs:
Nov 13 14:43:15 xx-msigx620 pulseaudio[15670]: ratelimit.c: 3 events suppressed
Nov 13 14:43:55 xx-msigx620 pulseaudio[15670]: alsa-sink.c: ALSA woke us up to
write new data to the device, but there was actually nothing to write!
Nov 13 14:43:55 xx-msigx620 pulseaudio[15670]: alsa-sink.c: Most likely this is
a bug in the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA
developers.
Nov 13 14:43:55 xx-msigx620 pulseaudio[15670]: alsa-sink.c: We were woken up
with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another
value < min_avail.
Nov 13 14:44:16 xx-msigx620 wpa_supplicant[1646]: CTRL-EVENT-SCAN-RESULTS
lspci -v
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio
Controller (rev 03)
Subsystem: Micro-Star International Co., Ltd. Device 6510
Flags: bus master, fast devsel, latency 0, IRQ 22
Memory at f9cf8000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0
Enable-
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [100] Virtual Channel <?>
Capabilities: [130] Root Complex Link <?>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
** Attachment added: "output of: killall pulseaudio;sleep1;pulseaudio -vvvv"
http://launchpadlibrarian.net/35600709/pulseaudio_vvvv.txt
--
[karmic] ALSA driver snd_hda_intel broken according to PulseAudio
https://bugs.launchpad.net/bugs/430620
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