> > Howdy! I have a situation where PulseAudio is "grabbing" a usb headset before > fully initialized, thus not all features are being recognized. > > More details here: > > https://askubuntu.com/questions/537166/usb%2daudio%2ddevice%2dnot%2dfully%2dworking%2dafter%2dhotplug You have to post output of alsa-info.sh and pactl list before and after the hot plug This look like priority issue if you have usb web cam mic and hotplug usb headset https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/usb/mixer.c?id=9fcd0ab130579d9742538340edda3225f2b49a3e Another issue is some usb devices only obtained dB scale at a later time after the control is created This may need some delay for pulseaudio to get dB scale You can add printk statement to find out how much time you need > > and a related, I think, bug here: > > https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/841433 > > Anyone have a pointer to a udev rule I could create (or a PulseAudio config I > could tweak) that would case a delay before the device is scanned by > PulseAudio? > > I'm pretty sure it's a timing issue, because: > > Works OK: > Cold boot (or reboot) > Resume from hibernate > Resume (or hotplug) -> killall/restart pulseaudio > > Fails to work: > Hotplug > Resume from sleep > > Any tips? > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20141022/8490aaad/attachment.html>
