when the on board sound card has hardware volume control, pulseaudio provide info of hardware and calculated software volume
8| 0.000) D: [alsa-source] alsa-source.c: Requested volume: 0: 1% 1: 1% ( 70.068| 0.000) D: [alsa-source] alsa-source.c: in dB: 0: -128.01 dB 1: -128.01 dB ( 70.068| 0.000) D: [alsa-source] alsa-source.c: Got hardware volume: 0: 1% 1: 1% ( 70.068| 0.000) D: [alsa-source] alsa-source.c: in dB: 0: -128.01 dB 1: -128.01 dB ( 70.068| 0.000) D: [alsa-source] alsa-source.c: Calculated software volume: 0: 100% 1: 100% (accurate-enough=yes) ( 70.068| 0.000) D: [alsa-source] alsa-source.c: in dB: 0: 0.00 dB 1: 0.00 dB did gnome sound control allow you to change bass, balance and fade in 7.1 profile ? if yes, did you change them in the previous test since there is no calculated software volume for 7.1 in the log 213| 0.000) I: [pulseaudio] source.c: device.icon_name = "audio-card-usb" ( 0.214| 0.000) I: [pulseaudio] alsa-sink.c: Using 2.0 fragments of size 524280 bytes (495.35ms), buffer size is 1048560 bytes (990.70ms) ( 0.214| 0.000) I: [pulseaudio] alsa-sink.c: Time scheduling watermark is 3.99ms ( 0.214| 0.000) D: [pulseaudio] alsa-sink.c: hwbuf_unused=0 ( 0.214| 0.000) D: [pulseaudio] alsa-sink.c: setting avail_min=43514 ( 0.214| 0.000) D: [pulseaudio] alsa-mixer.c: Activating path analog-output ( 0.214| 0.000) D: [pulseaudio] alsa-mixer.c: Path analog-output (Analog Output), direction=1, priority=99, probed=yes, supported=yes, has_mute=no, has_volume=no, has_dB=no, min_volume=0, max_volume=0, min_dB=inf, max_dB=-inf ( 0.214| 0.000) I: [pulseaudio] alsa-sink.c: Driver does not support hardware volume control, falling back to software volume control. ( 0.214| 0.000) I: [pulseaudio] alsa-sink.c: Driver does not support hardware mute control, falling back to software mute control. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1186512 Title: [USB-Audio - Fast Track Ultra, playback] Playback problem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1186512/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs