Hi,
To reveal what causes this issue, please post following test and the outputs. The test consists of 8 steps.
0. Plug-out your DesktopKonnect6.
1. To prevent snd_dice from auto-loading, add an entry to configuration file. See: https://wiki.archlinux.org/index.php/Kernel_modules#Blacklisting
Perhaps: $ cat /etc/modprobe.d/blacklist.conf ... blacklist snd_dice ...
2. Reboot your system and confirm that snd_dice is not auto-loaded.
$ lsmod | grep snd_dice (nothing)
3. Plug-in your DesktopKonnect6.
4. Wait one minute without do things (I expect several bus reset occurs in IEEE 1394 bus then the bus becomes calm.)
5. Load snd_dice and check it $ modprobe snd_dice $ lsmod | grep snd_dice snd_dice (you may see.)
6. Dump module information $ cat /proc/asound/DesktopKonnekt6/dice ...(outputs)...
7. Try your playback test.
8. get logs from pulseaudio via journalctl or the other tools.
Regards
Takashi Sakamoto
On May 11 2015 07:10, Stanislav Sergiienko wrote:
Any error messages in the system log?
The problem is that i couldn't find any significant errors. All i was able to gather is:
journalctl: апр 13 13:47:56 ArchLinux pulseaudio[2115]: [pulseaudio] pid.c: Daemon already running. апр 13 13:48:03 ArchLinux pulseaudio[2098]: [alsa-sink-DICE] alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write! апр 13 13:48:03 ArchLinux pulseaudio[2098]: [alsa-sink-DICE] alsa-sink.c: Most likely this is a bug in the ALSA driver 'snd_dice'. Please report this issue to the ALSA developers. апр 13 13:48:03 ArchLinux pulseaudio[2098]: [alsa-sink-DICE] alsa-sink.c: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail.
Sometimes see this: май 03 17:30:27 ArchLinux pulseaudio[657]: [alsa-sink-DICE] alsa-sink.c: Resume failed, couldn't restore original sample settings.
Sometimes after play failed i see in sysnotification area: "DesktopKonnect6 don't work, 'Default' will be used"
In dmesg i see no errors.
What exactly happens when it cannot play sound?
No errors. It's just don't play anything. For example, for video, various players handle it differently - some are just play video without any sound, some can't play video at all(stops play on first frame).
What exactly happens when it "breaks"?
Almost nothing, sometimes i can hear that music breaks with some kind of "click-sound", like someone pulled the wire from my loudspeakers. But this sound is barely noticeable. If i try to play file again i hear some kind of "initialization sound", like when device open on PC boot. It's hard to describe it in my English :)
If you send me info about how to gather more detailed logs, i try do this. P.S. Sorry for long time to answer.