[LAU] Jack hanging when a usb soundcard is disconnected

[Peter P.]

* Len Ovens <len at ovenwerks.net> [2015-10-17 14:50]:
> On Sat, 17 Oct 2015, Ivica Ico Bukvic wrote:
> 
> >This is a long-standing problem. While it is not intentional, sometimes
> >newcomers to jack on Linux tend to pull out the soundcard (USB) before
> >shutting down jack. This results in jack permanently hanging to the
> 
> Just one more reason why USB Audio Interfaces are not a good replacement for
> PCI(e) Audio Interfaces. USB devices seem to randomly vanish without anyone
> touching the plug even. My 10 year old PCI AI is more stable (and can do
> lower latency) than any USB device I have tried yet.
I have no such problems at all with my UA-25 usb interface, it is more
stable than my PCI HDSP card in fact, so ymmv.
> 
> Even my USB qwerty keyboard comes and goes sometimes.
Ah! I had that and had to look into usb autosuspend / laptop-mode-tools
which drove me crazy losing my mouse and keyboard sometimes.