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Bug#585016: [linux-2.6] Logitech QuickCam 4000 Pro USB webcam does not work on Debian Squeeze. It works on Debian Lenny.

Package: linux-2.6
Version: linux-image-2.6.32-3-amd64
Severity: critical

--- Please enter the report below this line. ---
Logitech QuickCam 4000 Pro USB webcam is detected but does not work on Debian 

  * The hardware works absolutely rightly on a Debian Lenny machine.
  * On Debian squeeze, I plug it in and tt is detected (/var/log/syslog or
    dmesg), /dev/video0 created. lsusb shows the new device.

      Bus 003 Device 005: ID 046d:08b2 Logitech, Inc. QuickCam Pro 4000

    However, even if it is detecte rightly,
      * 'ekiga' hang when cam is enabled.
      * 'cheese' shows black screen, both at photo and video mode.
      * 'xawtv' hangs when USB set as source of video.

Linux kernel changed a bit with how it deals with webcams, change from v4l to 
v4l2, but debian kernel should come with all the needed stuff.

Module "pwc" is loaded.

  * lsmod 
	pwc                    72006  0 
	videodev               29977  1 pwc
	usbcore               121703  9 snd_usb_audio,snd_usb_lib,pwc,

  * modprobe -r pwc && modprobe pwc

  /var/log/syslog shows the below lines. Nothing odd:

    [43819.512527] usbcore: deregistering interface driver Philips webcam
    [43819.578378] pwc: Philips webcam module removed.
    [43819.627901] Linux video capture interface: v2.00
    [43819.629396] pwc: Philips webcam module version 10.0.13 loaded.
    [43819.629398] pwc: Supports Philips PCA645/646, PCVC675/680/690,
                        PCVC720[40]/730/740/750 & PCVC830/840.
    [43819.629400] pwc: Also supports the Askey VC010, various Logitech
                        Quickcams, Samsung MPC-C10 and MPC-C30,
    [43819.629401] pwc: the Creative WebCam 5 & Pro Ex, SOTEC Afina Eye
                        and Visionite VCS-UC300 and VCS-UM100.
    [43819.629419] pwc: Logitech QuickCam 4000 Pro USB webcam detected.
    [43819.629459] pwc: Registered as /dev/video0.
    [43819.639359] input: PWC snapshot button as
    [43819.639425] usbcore: registered new interface driver Philips webcam

  The /devices/pci0000:00/... device is a button on the webcam to take

I think that is a Linux kernel problem. Is it specific to Debian or to the 
mainline Linux kernel 2.6.32?

Feel free to ask me for more testing, Linux kernel patching and so on. Also 
let me know if I am direct this bug report to the main Linux kernel 
development mailing list.

--- System information. ---
Architecture: amd64
Kernel:       Linux 2.6.32-3-amd64

Debian Release: squeeze/sid
  500 testing         security.debian.org 
  500 testing         ftp.uk.debian.org 

--- Package information. ---
Package's Depends field is empty.

Package's Recommends field is empty.

Package's Suggests field is empty.

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