Here's the relevant part of the log: D: alsa-mixer.c: Looking at profile output:analog-surround-71+input:analog-stereo D: alsa-mixer.c: Checking for recording on Analog Stereo (analog-stereo) D: alsa-util.c: Trying front:3 with SND_PCM_NO_AUTO_FORMAT ... D: alsa-util.c: Managed to open front:3 D: alsa-util.c: Maximum hw buffer size is 5944 ms I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-5) I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-5) I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-5) I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-5) D: alsa-util.c: Set neither period nor buffer size. I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-5) I: alsa-util.c: snd_pcm_hw_params failed: Input/output error
It looks like it's the hardware reporting back that it doesn't 8 out + 2 in simultaneously. IIRC, 8 channels is about max for what USB full-speed can reliably handle. Could you verify that this device is supposed to be able to do this? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/748937 Title: Lack of "Analog Surround 7.1 Output + (Digital|Analog) Stereo Input" sound profile for cm6206 (cm106 like) USB sound card. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
