HOW TO: Fix Logitech QuickCam and GnomeMeeting

[Remix_88]

This fix is derived from a couple of posts in various topics and may work for more than just Logitech QuickCams, but I can't validate that as I don't have any other brand of web cam.

The Problem

After a fresh install of Hoary, GnomeMeeting produced the following error when I tried to use the web cam.

Error while opening video device /dev/video0

The Fix

$ sudo apt-get install libpt-pluins-v4l


Start GnomeMeeting and change the video plugin to 'v4l' in the GnomeMeeting Preferences (instead of 'v4l2') and set the channel to 0.

Your webcam should now be working.

[Jesus Franco]

"libpt-plugins-v4l"

AND THANK YOU! Now I can use my sisters quickcam as a security can while I'm at school. I tried to get it to work before and it didnt. NOW IT DOES!!!!!! :-D

[simbloke]

More thanks!

I thought it was going to be something to do with the pwc module. I'm using a Philips camera by the way.

[vrunt]

If you're using a Labtec QuickCam, you need to do the same thing.
But first you'll have to get the drivers.
I used http://qce-ga.sourceforge.net

[Fab_nasty]

Motherboard : P4P800-e-deluxe
CPU : P4 2.8Ghz HT
RAM : 1024 MO
Graphic Card : ATI Radeon 9800Pro
Sound card : integred sound card (Realtek ALC 850)
TV Card : PCTV Rave (can Use V4l2 and V4l)
Webcam : Quickcam 4000 Pro
i have done this but i have, my webcam freeze. i have v4l plugin but it doesn't work, if i use gqcam, gnomemeeting ou camstream, it's the same they freeze when my webcam start. Who can help me?
I hope you understand well because english is not my natural language

[Jesus Franco]

type the following in a terminal window

$ sudo gedit /etc/X11/xorg.conf

after u type your password a window should pop up with your X-Org configuration.

look for a section that says
Section "Module"
Make sure you have the following listed under it.
Load "v4l"
If not add it. Mines looks like this
Section "Module"
Load "GLcore"
Load "bitmap"
Load "dbe"
Load "ddc"
Load "dri"
Load "extmod"
Load "freetype"
Load "glx"
Load "int10"
Load "record"
Load "type1"
Load "v4l"
Load "vbe"
EndSection

Note: I am using a ati video card. Dont know what you need to do to a config with a nvidia card. Maybe its the same. Dont know :|

Hope that helps you

[Fab_nasty]

I have always the same probleme, i don't think it's v4l problem, i think my pctv and my webcam make conflict, because my pctv card can use v4l2 and v4l, but i don't know how i can solve it.

[st0ic]

If you're using a Labtec QuickCam, you need to do the same thing.
But first you'll have to get the drivers.
I used http://qce-ga.sourceforge.net

I get the following error when I run the make all, any help?

awk: cannot open /lib/modules/2.6.10-5-686/build/include/linux/version.h (No such file or directory)
/bin/sh: line 0: [: -ge: unary operator expected
/bin/sh: line 0: [: -ge: unary operator expected
cc -I/lib/modules/2.6.10-5-686/build/include -nostdinc -iwithprefix include -DMODULE -D__KERNEL__ -DNOKERNEL -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -Wall -Wstrict-prototypes -Wno-trigraphs -pipe -c qc-driver.c
make: cc: Command not found
make: *** [qc-driver.o] Error 127

[Wallilabou]

I get the following error when I run the make all, any help?

awk: cannot open /lib/modules/2.6.10-5-686/build/include/linux/version.h (No such file or directory)
/bin/sh: line 0: [: -ge: unary operator expected
/bin/sh: line 0: [: -ge: unary operator expected
cc -I/lib/modules/2.6.10-5-686/build/include -nostdinc -iwithprefix include -DMODULE -D__KERNEL__ -DNOKERNEL -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -Wall -Wstrict-prototypes -Wno-trigraphs -pipe -c qc-driver.c
make: cc: Command not found
make: *** [qc-driver.o] Error 127

Just finished installing this same driver.

It needs the kernel headers to compile. Search for linux-headers-686 in synaptic. Also, instead of running make directly, I used ./quickcam.sh which guides you through the process. (Check the updated instructions in the README file.)
Hope this helps.

[geokker]

I get a:

E: Couldn't find package libpt-pluins-v4l

Which repository is it in? I thought I had all of the biggies installed.

** IGNORE ME!**

found it.

:---)

[rwabel]

This fix is derived from a couple of posts in various topics and may work for more than just Logitech QuickCams, but I can't validate that as I don't have any other brand of web cam.

The Problem

After a fresh install of Hoary, GnomeMeeting produced the following error when I tried to use the web cam.

Error while opening video device /dev/video0

The Fix

$ sudo apt-get install libpt-pluins-v4l


Start GnomeMeeting and change the video plugin to 'v4l' in the GnomeMeeting Preferences (instead of 'v4l2') and set the channel to 0.

Your webcam should now be working.
Gqcam gives me that error: /dev/video: No such file or directory

I need to make a symlink from /dev/video0

why that? It's the opposite!

[gratefulfrog]

This fix is derived from a couple of posts in various topics and may work for more than just Logitech QuickCams, but I can't validate that as I don't have any other brand of web cam.

The Problem

After a fresh install of Hoary, GnomeMeeting produced the following error when I tried to use the web cam.

Error while opening video device /dev/video0

The Fix

$ sudo apt-get install libpt-pluins-v4l


Start GnomeMeeting and change the video plugin to 'v4l' in the GnomeMeeting Preferences (instead of 'v4l2') and set the channel to 0.

Your webcam should now be working.
This is really usefull. Could someone send it to the official howtos, or to the unofficial ubutuntu guide?

[Raj]

Hi guys,

I have followed the instructions in the thread and it updated the v4l library/codec (?). The thing is that when I ask gnomemeeting to autodetect my cam, it isnt finding it - says that there is no input device found.

BUT - in device manager it sees it as a Quickcam Express ??

Ideas??

Cheers

Raj

********** EDIT ************

I followed this guide http://www.ubuntuforums.org/showthread.php?t=53755&highlight=logitech+quickcam and it worked staright up. Thanks again for everyones help...

[meirm]

for those trying to install
sudo apt-get install libpt-pluins-v4l

There is a typo and you should type

sudo apt-get install libpt-plugins-v4l

If you are looking for a package you could type

apt-cache search <package-partial-name>

for instance

apt-cache search libpt

[arnieboy]

trythe following howto:
http://ubuntuforums.org/showthread.php?t=75284