Xawtv (video capture) problem, BT878 chipset, Video4Linux failure...halp?

[Jim March]

Folks,

I have a somewhat complex question posted on Ubuntuforums at:

http://ubuntuforums.org/showthread.php?p=7469310

Basically, XawTV won't work, which is a prelude to getting ZoneMinder
working (the latest 1.24.1 compiled from source).

It DID work on my initial new Ubuntu Intrepid install, then failed
after installing some part of ZM and it's massive set of dependencies.

Right now my best guess is it's a permissions thing...I *think* the
most crucial error messages are from what happens when Xawtv fails:

---
zmuser at zmuser-camerastation:~$ xawtv -device /dev/video0
This is xawtv-3.95.dfsg.1, running on Linux/i686 (2.6.27-14-generic)
xinerama 0: 1280x1024+0+0
WARNING: No DGA direct video mode for this display.
WARNING: couldn't find framebuffer base address, try manual
         configuration ("v4l-conf -a <addr>")
v4l2: WARNING: framebuffer base address mismatch
v4l2: me=(nil) v4l=(nil)
Warning: Cannot convert string
"-*-ledfixed-medium-r-*--39-*-*-*-c-*-*-*" to type FontStruct
ioctl: VIDIOC_QBUF(index=0;type=VIDEO_CAPTURE;bytesused=0;flags=0x0
[];field=ANY;;timecode.type=0;timecode.flags=0;timecode.frames=0;timecode.seconds=0;timecode.minutes=0;timecode.hours=0;timecode.userbits="";sequence=0;memory=MMAP):
Device or resource busy
libv4l2: error turning on stream: Device or resource busy
ioctl: VIDIOC_STREAMON(int=1): Device or resource busy
ioctl: VIDIOC_QBUF(index=0;type=VIDEO_CAPTURE;bytesused=0;flags=0x0
[];field=ANY;;timecode.type=0;timecode.flags=0;timecode.frames=0;timecode.seconds=0;timecode.minutes=0;timecode.hours=0;timecode.userbits="";sequence=0;memory=MMAP):
Device or resource busy
libv4l2: error dequeuing buf: Invalid argument
ioctl: VIDIOC_DQBUF(index=0;type=VIDEO_CAPTURE;bytesused=0;flags=0x0
[];field=ANY;;timecode.type=0;timecode.flags=0;timecode.frames=0;timecode.seconds=0;timecode.minutes=0;timecode.hours=0;timecode.userbits="";sequence=0;memory=MMAP):
Invalid argument
v4l2: read: Device or resource busy
zmuser at zmuser-camerastation:~$
---

I also have the dmesg output for the BT878 chipset startup at the link
above, but it looks normal.

Anybody with clue one why Xawtv is blowing up on me, PLEASE sing out
:(.  I'm dyin' here...

Thanks,

Jim