Bug 468675 - pwc: No video for Philips webcam
pwc: No video for Philips webcam
Status: CLOSED WORKSFORME
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
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All Linux
medium Severity high
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Assigned To: Hans de Goede
Fedora Extras Quality Assurance
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Reported: 2008-10-27 07:59 EDT by Remy Maucherat
Modified: 2008-10-27 16:32 EDT (History)
2 users (show)

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Doc Type: Bug Fix
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Last Closed: 2008-10-27 16:32:15 EDT
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Description Remy Maucherat 2008-10-27 07:59:01 EDT
Description of problem:
Video does not work for Philips webcam on F10 snap 3. No error message in system log (webcam is detected and appears to be initialized fine), but no video input (green screen in v4l2 in gstreamer). Works on F9.

Version-Release number of selected component (if applicable):
Fedora 10 snap 3
ID 0471:0308 Philips PCVC680K WebCam [pwc]

How reproducible:
Always.

Steps to Reproduce:
1. Plug webcam.
2. Open cheese in Gnome (or use gstreamer-properties).
3.
  
Actual results:
Green screen (no video input) in cheese.

Expected results:
Works.

Additional info:
Works fine on F9.
Comment 1 Hans de Goede 2008-10-27 14:17:01 EDT
Thanks for reporting.

This is most likely a libv4l issue which has been fixed in libv4l-0.5.2 and newer. So can you first of all try a "yum update libv4l". Yes you can even do this on a system booted from livecd, the updated will get applied and kept in ram (until the next reboot).

If that does not fix things can you please on a terminal do:
export LIBV4L2_LOG_FILENAME=/tmp/log
cheese

(Both from the same terminal!) and then after running cheese attach /tmp/log here?

Thanks!
Comment 2 Remy Maucherat 2008-10-27 16:32:15 EDT
I was not aware of the new F10 libv4l package, which is not in the LiveCD. Installing it caused the webcam to work without problems (adding to the confusion, an UVC webcam worked without the package).

Thanks a lot, and sorry for the trouble.

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