[Bug 15212] New: compatibility issues between kernel 2.6.12 and pwc in universe

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Ubuntu | kernel-package

           Summary: compatibility issues between kernel 2.6.12 and pwc in
                    universe
           Product: Ubuntu
           Version: unspecified
          Platform: i386
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: kernel-package
        AssignedTo: ben.collins at ubuntu.com
        ReportedBy: mjpowersjr at gmail.com
         QAContact: kernel-bugs at lists.ubuntu.com


There are compatibility issues between the pwc-source package  and the 2.6.12
kernel. The pwc module is requried for many phillips based webcams (many popular
logitech webcams are phillips based). I have ran into this problem with my
Logitech QuickCam Orbit. Below is a summary of the problem, and my current fix. 

Background:
My webcam is a Logitech Quickcam Orbit, it uses the pwc kernel module. I
downloaded and suscessfully compiled the pwc-source module from universe, along
with libpt-plugins-v4l. When I plug in the camera, it creates a new device
/dev/video1, and GnomeMeeting seems to detect the device just fine.

Problem:
The problem is when enabling the webcam GnomeMeeting, the red light on the
camera comes on, but a flat gray image is displayed instead of the video stream
from the webcam.

Tracked down a bit more info on the problem. Grey output is a known issue on the
2.6.12 kernel. I found a fedora bugzilla report on the issue [1] as well as
information on the pwc driver mailing list from August [2].

I'm not sure when this plans to be fixed, but their is a workaround (worked for
me anyway).

1) Download pwc-10.0.7a.tar.bz2 from the pwc website [3]
2) rmmod pwc #remove the old module, if loaded.
3) Decompress the file, make, and make install the new module.
4) modprobe pwc # load the new module
5) unplug, and plug back in your usb webcam, and your good to go

-------------------------------------------------------
[1] fedora bugzilla - https://bugzilla.redhat.com/bugzill...g.cgi?id=159608
[2] psc mailing list - http://lists.saillard.org/pipermail...ust/thread.html
[3] pwc website - http://www.saillard.org/linux/pwc/files/

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