Webcam only shows Black Screen on Lucid

Asked by xylog on 2010-11-07

I am running Ubuntu Lucid 10.04 and I am unable to get my Logitech Quickcam Communicator Deluxe to work. It is recognized by the kernel as a UVC camera:

[ 4088.530176] usb 1-5: USB disconnect, address 6
[ 4091.048078] usb 1-5: new high speed USB device using ehci_hcd and address 7
[ 4091.296281] usb 1-5: configuration #1 chosen from 1 choice
[ 4091.296445] uvcvideo: Found UVC 1.00 device <unnamed> (046d:0992)
[ 4091.327434] input: UVC Camera (046d:0992) as /devices/pci0000:00/0000:00:1d.7/usb1/1-5/1-5:1.0/input/input12

When I run Skype, cheese, gstreamer or guvcview the light turns on but I see nothing but a black screen. I have tried doing " LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so cheese" and "LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so cheese" with no change.

interestingly I also have a Microsoft Lifecam that works fine. The logitech cam works fine on other windows systems.

Question information

Language:
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Status:
Answered
For:
Ubuntu cheese Edit question
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Last query:
2010-11-09
Last reply:
2010-11-10
marcus aurelius (adbiz) said : #1

how much light do you have?

i have the same cam but it takes a few secs for the picture to show up on cheese. that cam was made before cmos chips came out, so you need a lot of light.

btw, it only works on cheese for me but not with any other apps, despite it being listed as UVC.

xylog (xylog) said : #2

I have plenty of light and I waited for several minutes for video to come up and it never changed from the black screen.

marcus aurelius (adbiz) said : #3

I found this on the internet.

http://forums.logitech.com/t5/Webcams/QC-Communicate-Deluxe-USB-Unknown-Device/td-p/393789

it seems that the logitiech cam doesn't work with some usb ports. the person fixed it by installing a new usb port. drastic measure. i'd rather just return the cam and get another one. maybe you can just use your lifecam on ubuntu and the logitech on windoze.

marcus aurelius (adbiz) said : #4

Before fiddling with the USB, i found this on a post here from last year. you might want to give it a try. i just trying it now.

https://help.ubuntu.com/community/Webcam

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