[Ltsp-discuss] Pulseaudio dies on thin clients

[Steve C. <cay...@um...>]

I've been losing the audio on thin clients lately. I'm not sure when this 
started, either when I upgraded to Jaunty or sometime since then. Audio was 
definitely working with earlier versions.

After initially booting up a client I can usually log in and audio will 
work for a little while. I'm testing this with the Beep media player and I 
may get a minute or so of an mp3. Then the pulseaudio server on the client 
appears to die. I have to reboot the client to get audio again.

Server is Ubuntu 9.04 32 bit. Client is an HP ePC40.

lspci on the client shows this:

---
0000:00:00.0 Host bridge: Intel Corp. 82815 815 Chipset Host Bridge and
   Memory Controller Hub (rev 02)
0000:00:02.0 VGA compatible controller: Intel Corp. 82815 CGC [Chipset
   Graphics Controller] (rev 02)
0000:00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB/EB/ER Hub interface to
   PCI Bridge (rev 05)
0000:00:1f.0 ISA bridge: Intel Corp. 82801BA ISA Bridge (LPC) (rev 05)
0000:00:1f.1 IDE interface: Intel Corp. 82801BA IDE U100 (rev 05)
0000:00:1f.2 USB Controller: Intel Corp. 82801BA/BAM USB (Hub #1) (rev 05)
0000:00:1f.3 SMBus: Intel Corp. 82801BA/BAM SMBus (rev 05)
0000:00:1f.4 USB Controller: Intel Corp. 82801BA/BAM USB (Hub #2) (rev 05)
0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801BA/BAM AC'97
   Audio (rev 05)
0000:01:08.0 Ethernet controller: Intel Corp. 82801BA/BAM/CA/CAM Ethernet
   Controller (rev 03)
---

The client log shows this before the crash:

---
Oct 29 16:08:14 ltsp-client pulseaudio[3071]: module-alsa-source.c:
   Increasing minimal latency to 256.00 ms
Oct 29 16:08:14 ltsp-client pulseaudio[3071]: module-alsa-sink.c:
   Increasing minimal latency to 32.00 ms
Oct 29 16:08:14 ltsp-client pulseaudio[3071]: module-alsa-source.c:
   Increasing wakeup watermark to 235.96 ms
Oct 29 16:08:14 ltsp-client pulseaudio[3071]: module-alsa-source.c:
   Increasing wakeup watermark to 245.99 ms
Oct 29 16:08:15 ltsp-client pulseaudio[3071]: module-alsa-source.c:
   Increasing minimal latency to 371.52 ms
Oct 29 16:08:15 ltsp-client pulseaudio[3071]: module-alsa-source.c:
   Increasing wakeup watermark to 361.50 ms
Oct 29 16:08:16 ltsp-client pulseaudio[3071]: module-alsa-sink.c:
   Increasing wakeup watermark to 20.00 ms
Oct 29 16:09:02 ltsp-client pulseaudio[3071]: module-alsa-sink.c:
   Increasing wakeup watermark to 22.00 ms
Oct 29 16:09:02 ltsp-client pulseaudio[3071]: module-alsa-sink.c:
   Increasing minimal latency to 64.00 ms
Oct 29 16:09:02 ltsp-client pulseaudio[3071]: rtpoll.c: Assertion 'usec <=
   ((pa_usec_t) 1000000ULL)*60ULL*60ULL' failed at pulsecore/rtpoll.c:516,
   function pa_rtpoll_set_timer_relative(). Aborting.
---

I also see these messages occasionally in the logs, but they don't seem to 
correlate with the crashes.

---
Oct 29 16:02:49 ltsp-client pulseaudio[3071]: x11wrap.c: XOpenDisplay()
   failed
Oct 29 16:02:49 ltsp-client pulseaudio[3071]: module.c: Failed to load
   module "module-x11-publish" (argument: "display=134.84.21.209:7"):
   initialization failed.
---

Any suggestions are welcome.

-Steve