"If your card 2 only support stereo, it is strange that surround21 can be opened"
Maybe, maybe not; the assertion that the device is stereo is based on the fact that it's a headset and has two obvious speakers. Whether it has some kind of subwoofer-style audio channel is not something I'm certain about. For clarification on the devices being referenced: * Details on the headset can be found here: http://support.logitech.com/en_us/product/stereo-headset-h390 * Details on the desktop audio device (specifically named "Device")can be found here: https://www.sabrent.com/category/audio/USB-SND8/ "The major problem is why you override pcm.default with dmix whenn you running pulseaudio" I'm not sure if this is a question or not, but I'll assume it is. The .asoundrc was originally set to use the pulse plug, rather than dmix. However, when the problem first began, I had to turn off PulseAudio in order to get sound at all for most of the programs I'm running. However, the audio device used by default in ALSA is the built-in audio in the desktop, which I do not use; the USB devices listed above are cleaner and clearer. I also didn't want to have programs lock up while waiting for access to the audio device. Therefore, I changed the audio default, first to Jack (hence the stanzas with Jack on them), and then I decided it would just be better to use the dmix device until the problem could be solved. This way, I can still make use of everything on the system, even if screencasts remain impossible. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1562208 Title: OpenAL Software Silent/Freezes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openal-soft/+bug/1562208/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
