[mythtv-users] sound cutting out?

Johnson, Thor tjohnson at prenova.com
Sat Nov 6 04:27:52 UTC 2004


Argh...
 
My mythbox (nForce1, onboard video & sound) was working perfectly until 0.15... at 0.15 sometimes the sound would flake out (funny pitches, volume would jump around), but it was kinda OK (and it seemed to happen mostly when the other parts of the PC went berserk).
 
Now with 0.16 (and it seems to be getting more and more often), the sound will quit, sometimes between shows, sometimes in the middle of shows; it doesn't even matter if you're recording only or doing playback&recording  or just playback (though just playback seems to provoke the beastie less).
 
When it happens, I get the message "only read -1 bytes from /dev/dsp" on the mythbackend log (I put a tail on the file and auto-reboot... but today it has been rebooting every 5 minutes or so it seems).
 
My system:
  MSI odd-brand nForce1 board with 1 PCI slot (had to disable ACPI to get it to cooperate)
  Onboard nForce sound/video/net, using alsa-0.9.0, nvidia drivers, and nvnet -- not trying SPDIF yet...
  Gentoo linux Linux version 2.4.20-gaming-r3 kernel compiled w/GCC 3.2.3
  /mnt/storage 100GB XFS partition, now constanly 90-98% full...
 
I've tried:
  Using nvidia's sound module (got lost trying to get devfs to make the devices)
  Using alsa:default for the mythfrontend (same problem)
  Using alsa:default for mythbackend(couldn't get it to take...)
  Using "Aggressive Soundcard Buffering"-- seemed to make the problem worse
 
Questions:
  1. Am I just making a stupid mistake? (where please ;)
  2. Is there a good way to debug these kinds of things (not a crash... just sound quits)?
 
Thanks!
-Thor Johnson
 
PS... anyone know how to get outlook web access to do plain text?
 
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