Difference between revisions of "Troubleshooting"

Revision as of 20:16, 21 May 2008

General

• Always read your drivers' manpage.
• Always test with osstest
• When consulting the forum, attach the output of 'ossinfo -v3' and 'ossmix'.

How do I...

• Change mixer settings - ossmix (command line), ossxmix (GUI)
• Start and shut down OSS - soundon, soundoff (both require root)
• Save and restore mixer settings - savemixer (saving requires write permissions for mixer.save)
• Build OSS from source
• Other Tips And Tricks

I can't hear any sound!

• Did OSS load at all?
• Does osstest work?
• Are the outputs muted in the mixer?
• Is the default soundcard (the one linked to /dev/dsp) the one connected? If not, see here how to change that.
• HDAudio: Are the jacks detected by OSS as output, actually the jacks connected to the speaker?
• Is this an hardware issue?
  • Are the speakers muted?
  • Is the soundcard connected correctly to the speakers?
  • Do other drivers available for your OS (e.g. ALSA for Linux, FreeBSD native) work?

I hear noises!

• Many soundcards' hardware requires output mixers be set to less than maximum (60% at times).
• Set vmix0-src to an higher setting.
• Is the cable from the soundcard to the speakers connected correctly? Could it be too long?
• Build and use OSS from hg developement source.

I can't get multiple sound clients to play on the same device

• multiple clients to same device aren't supported on FreeBSD version. Either set programs to use separate devices, or use sound server like aRts, esd, etc.
• Is vmix loaded?
  • If so, make sure vmix1_masterdev in vmix.conf is set to the output device's device index (this can be determined by 'ossinfo -a').

I can't get sound/volume control from an application!

• See Configuring Applications for OSSv4