Failed to set video standard 45056: Device or resource busy

[orsty3001]

I can't find one of those Grandstream GXV3504 for less than $203.49 before shipping online. I just ordered 4 IP cameras all new in the box for $74.95 off ebay that seem to work fine. The wire for them all cost $22. So I came out above your price anyway.

[dante]

Hello. Is this a TW68 based Card. I have the same Problem with this Card Type on Ubuntu 14.04 Kernel 3.19 and tw68 kernel driver.
bevor with Ubuntu 12.04 LTS and extra tw68 driver from gitorious works great.
i replased the tw68 Card with a bt878 Card and it works.
but the tw68 Card is the better one.
ffmpeg (ffserver) works with tw68, but zoneminder have this Problem

I resolved the problem using:
Source Type: Libvlc
Source Path: v4l2:///dev/video0:input=1