RE: Xawtv (video capture) problem, BT878 chipset, Video4Linu…

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Author: Bob Elzer
Date:  
To: 'Main PLUG discussion list'
Subject: RE: Xawtv (video capture) problem, BT878 chipset, Video4Linux failure...halp?
Silly question, is this NTSC or ATSC, could it not be working because we
switched to digital on Friday ???


-----Original Message-----
From:
[mailto:plug-discuss-bounces@lists.plug.phoenix.az.us] On Behalf Of Jim
March
Sent: Tuesday, June 16, 2009 4:28 PM
To: Tucson Free Unix Group; Main PLUG discussion list
Subject: Xawtv (video capture) problem, BT878 chipset, Video4Linux
failure...halp?

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@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.se
conds=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.se
conds=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.se
conds=0;timecode.minutes=0;timecode.hours=0;timecode.userbits="";sequence=0;
memory=MMAP):
Invalid argument
v4l2: read: Device or resource busy
zmuser@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
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