Description of problem: After upgrade from FC6 to FC7 I have following problems with emu10k (Sound Blaster Live! 5.1): 1. no sound output from Center speaker 2. sound now comes out of different connector 3. cannot record sound Version-Release number of selected component (if applicable): [techie@erazim ~]$ rpm -q kernel alsa-lib alsa-utils kernel-2.6.21-1.3194.fc7 kernel-2.6.21-1.3228.fc7 alsa-lib-1.0.14-0.4.rc3.fc7 alsa-utils-1.0.14-0.5.rc2.fc7 [techie@erazim ~]$ uname -a Linux erazim.local.lab.devnull.cz 2.6.21-1.3228.fc7 #1 SMP Tue Jun 12 15:37:31 EDT 2007 i686 athlon i386 GNU/Linux How reproducible: play or record sounds Actual results: Sound output lacks central speaker and sound recording does not work. Expected results: Sound output and input should work as it worked in FC6. Additional info: On my SoundBlaster Live! sound card there are following jacks/connectors: (from left to right) - black - green - red - blue - orange In FC6 I have used black+orange to get sound output. black was all 5 speakers, orange was central speaker. All worked flawlessly. After upgrade to FC7 the sound no longer comes from the black output but from the green output. Also, no sound (or very very weak and with noise) comes out from the orange speaker. I have booted Ubuntu LiveCD to see if this is really software problem and yes, it is behaving in the same way as FC7. The recording problem is this: I am able to hear myself in the speakers when I speak into the microphone. Also, when I set microphone boost (+20dB) I begin to hear back-coupling in the speakers. So, microphone works correctly as does the input port on the sound card but somehow (the driver ?) it does not get the sound any further. I am pretty sure I have seen bugs like that in ALSA before. I have also tried to regenerate config files in system-config-soundcard and reboot afterwards but it did not fix the problem.
Created attachment 157204 [details] scsconfig.log generated via system-config-soundcard
I have bumped 'Wave Center' in alsamixer to value 82 and I can hear the Center again. I have played with other settings in alsamixer as well and now the black socket offers sound output as well. Seems like alsamixer settings got garbled during upgrade. (or the format changed, etc.)
I have got the recording back as well, although I am not sure what was required to get it working. (probably 'Wave capture') Clearly something has changed between FC6 and FC7 so this should be at least reclassified as some sort of upgrade bug.
Hello, I'm reviewing this bug as part of the kernel bug triage project, an attempt to isolate current bugs in the fedora kernel. http://fedoraproject.org/wiki/KernelBugTriage This bug appears to be resolved and I am therefore closing it. If I have erred, please forgive me and re-open with any additional information you are able to give. I will then try and assist you if I can. Cheers Chris