Bug#537566: Video not displayed from monitor integrated webcam

[Allen Cuda]

Package: cheese
Version: 2.24.3-2
Severity: normal


I have a Dell SP2008WFP monitor with integrated webcam which uses the 
uvcvideo driver. When cheese starts, the LED beside the webcam comes on 
but no video is displayed.  After about 10 seconds the test pattern is 
displayed in cheese's window.  Pictures and videos can be taken but only 
the test pattern is saved.  Starting cheese in verbose mode shows that 
cheese is getting hung up at "Probing supported video formats..." and no 
further output is displayed on stdout.

Things I have tried that didn't work...
1. manually unloading and reloading the uvcvideo module.
2. blacklisting uvcvideo and loading it manually after a reboot.
3. blacklisting uvcvideo and loading it via /etc/rc.local or /etc/modules

Workarounds that make cheese work...
1. After booting, switch the monitor off and on. According to the manual 
for the monitor; "Switching your monitor OFF and then ON would 
re-enumerate its USB interface".
2. Booting with the monitor turned off and then turning it on after boot 
process.
3. After booting, unplug and replug monitor's USB cable.
4. In the BIOS, change USB configuration to disable 'USB legacy' 
setting. However, in this scenario the keyboard is not functional until 
the Debian login screen is reached.  I can't access the BIOS screen 
again until I reset the BIOS from the motherboard.

Note: luvcvideo, mplayer and gstreamer all display video from this 
webcam without any workarounds.


-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.26-2-686 (SMP w/1 CPU core)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages cheese depends on:
ii  gconf2       2.26.2-1                    GNOME configuration 
database syste
ii  gstreamer0.1 0.10.23-3                   GStreamer plugins from the 
"base"
ii  gstreamer0.1 0.10.15-2                   GStreamer plugins from the 
"good"
ii  gstreamer0.1 0.10.23-3                   GStreamer plugins for X11 
and Pang
ii  libart-2.0-2 2.3.20-2                    Library of functions for 2D 
graphi
ii  libc6        2.9-12                      GNU C Library: Shared libraries
ii  libcairo2    1.8.6-2+b1                  The Cairo 2D vector 
graphics libra
ii  libdbus-1-3  1.2.14-3                    simple interprocess 
messaging syst
ii  libdbus-glib 0.80-4                      simple interprocess 
messaging syst
ii  libebook1.2- 2.26.1.1-2                  Client library for 
evolution addre
ii  libgconf2-4  2.26.2-1                    GNOME configuration 
database syste
ii  libglib2.0-0 2.20.1-2                    The GLib library of C routines
ii  libgnomeui-0 2.24.1-1                    The GNOME 2 libraries (User 
Interf
ii  libgnomevfs2 1:2.24.1-1                  GNOME Virtual File System 
(runtime
ii  libgstreamer 0.10.23-3                   GStreamer libraries from 
the "base
ii  libgstreamer 0.10.23-2                   Core GStreamer libraries 
and eleme
ii  libgtk2.0-0  2.16.1-2                    The GTK+ graphical user 
interface
ii  libhal1      0.5.12~git20090406.46dc48-2 Hardware Abstraction Layer 
- share
ii  libpango1.0- 1.24.0-3+b1                 Layout and rendering of 
internatio
ii  librsvg2-2   2.26.0-1                    SAX-based renderer library 
for SVG

Versions of packages cheese recommends:
ii  gvfs                          1.2.2-2    userspace virtual 
filesystem - ser

cheese suggests no packages.

-- no debconf information