If your card 2 only support stereo, it is strange that surround21 can be opened
155| 0.000) D: [pulseaudio] alsa-mixer.c: Checking for playback on Analog Surround 2.1 (analog-surround-21) ( 5.155| 0.000) D: [pulseaudio] alsa-util.c: Trying surround21:2 with SND_PCM_NO_AUTO_FORMAT ... ( 5.156| 0.000) I: [pulseaudio] (alsa-lib)pcm_hw.c: Invalid PCM state for chmap_get: OPEN ( 5.156| 0.000) D: [pulseaudio] alsa-util.c: Managed to open surround21:2 ( 5.156| 0.000) I: [pulseaudio] alsa-util.c: Disabling tsched mode since BATCH flag is set ( 5.156| 0.000) D: [pulseaudio] alsa-util.c: Maximum hw buffer size is 1981 ms ( 5.158| 0.001) I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_PREPARE failed (-32 -- 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
