Description of problem: snd_usb_audio module conflicts with snd_intel8x0. The audio is broken and every program using audio hangs on opening the audio device. Log gets spammed with .. codec_write 0: semaphore is not ready for register 0x6 codec_write 0: semaphore is not ready for register 0x2 codec_write 0: semaphore is not ready for register 0x4 codec_write 0: semaphore is not ready for register 0x2 codec_write 0: semaphore is not ready for register 0x4 .. The snd_usb_audio is loaded automatically due to my Pinacle USB TV card. Version-Release number of selected component (if applicable): alsa-lib-1.0.14-0.1.rc1.fc6 on kernel 2.6.20-1.2952.fc6PAE How reproducible: always Steps to Reproduce: 1. both modules are loaded 2. 3. Actual results: breaks audio Expected results: audio works Additional info: Blacklisting snd_usb_audio solves this problem
Created attachment 156289 [details] Log from system-config-soundcard Both modules are loaded at this time
Please report this problem to ALSA project (www.alsa-project.org) and attach the log there. They're authors of linux sound system so they should know how to fix it. I don't have your hardware so I can't reproduce / fix it here.
I'm not sure this is clear alsa problem. Might be a kernel module problem. This worked for me for some time and probably broke after update to latest kernel. Also I've tried Ubuntu, where I see both modules and they are not conflicting.
One thing to try is adding the line: options snd-usb-audio index=1 to /etc/modprobe.conf
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