Refer to the log PA can open mono playback and mono capture using hw:0
D: alsa-mixer.c: Profile output:analog-mono+input:analog-mono supported. PA can also open front:0 stereo playback D: alsa-mixer.c: Profile output:analog-stereo supported. But PA fail for open front:0 for stereo capture because of the lock of ctl elem 'EMUU10K1 PCM Send Routing' and 'EMU10K1 PCM Send Volume' and those locks had already been locked by the front playback device when PA open front device Those two controls mentioned in http://git.alsa-project.org/?p=alsa- kernel.git;a=blob_plain;f=Documentation/sound/alsa/SB-Live-mixer.txt associated with front device in http://git.alsa-project.org/?p=alsa- lib.git;a=blob_plain;f=src/conf/cards/EMU10K1.conf I: (alsa-lib)setup.c: Cannot lock ctl elem PA should not open front , surround40 for capture I: alsa-sink.c: Device doesn't support mmap(), falling back to UNIX read/write mode. I: alsa-sink.c: Cannot enable timer-based scheduling, falling back to sound IRQ scheduling. I: client.c: Created 0 "ConsoleKit Session /org/freedesktop/ConsoleKit/Session3" D: module-console-kit.c: Added new session /org/freedesktop/ConsoleKit/Session3 D: main.c: Got org.pulseaudio.Server! I: main.c: Daemon startup complete. I: module-stream-restore.c: Restoring volume for sink input sink-input-by-application-name:Banshee. D: memblockq.c: memblockq requested: maxlength=33554432, tlength=0, base=12, prebuf=0, minreq=1 maxrewind=0 D: memblockq.c: memblockq sanitized: maxlength=33554436, tlength=33554436, base=12, prebuf=0, minreq=12 maxrewind=0 I: sink-input.c: Created input 0 "Playback Stream" on alsa_output.pci-0000_01_0a.0.analog-surround-51 with sample spec s16le 2ch 32000Hz and channel map front-left,front-right I: sink-input.c: media.name = "Playback Stream" I: sink-input.c: application.name = "Banshee" I: alsa-sink.c: Using 8.0 fragments of size 5292 bytes (10.00ms), buffer size is 42336 bytes (80.00ms) 10 ms is smaller than PA 's 20ms watermark (i.e. PA have to wake up when there is 2 fragments left in the buffer ) SNDRV_PCM_IOCTL_START failed when PA start surround51 playback I: alsa-sink.c: Starting playback. I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_START failed E: alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write! E: alsa-sink.c: Most likely this is a bug in the ALSA driver 'snd_emu10k1'. Please report this issue to the ALSA developers. -- SB Audigy: Bad audio quality when told to use all 5.1 channels on emu10k1 cards https://bugs.launchpad.net/bugs/455779 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
