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 Forum index » Advanced Topics » Hardware » Video
Logitech Quickcam Express Webcam Trouble
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Marblemike

Joined: 09 May 2008
Posts: 36

PostPosted: Fri 09 May 2008, 16:26    Post_subject:  Logitech Quickcam Express Webcam Trouble
Sub_title: Problems using xawtv to view webcam, presumably due to driver issues.
 

Hi there,

I'm relatively new to this (first time puppy user) - so please forgive me if this is posted in the wrong place or something is wrong.

I've just purchased a logitech quickcam express webcam and have been trying to get it going under puppy 3.01. (It works fine under Kubuntu so I'm sure the webcam is ok for linux) Ultimately the plan is to write code in c to grab frames and process them for use in a realtime robosoccer robot, but before that I just want to see some sort of output in xawtv.

When I unplug and plug in the webcam and use dmesg I get:

Code:
usb 1-2: USB disconnect, address 4
usb 1-2: new full speed USB device using uhci_hcd and address 5


I don't know if that's right or even relevant.

I then downloaded and installed the quickcam driver
Quote:
qc-usb-0.6.5-k2.6.21.7.pet
from http://www.murga-linux.com/puppy/viewtopic.php?mode=attach&id=6471&sid=116715430e2db29adc1e1ada1c940b0d

Next, I modprobed it and got the following:

Code:
# modprobe videodev
# modprobe quickcam
# lsmod
Module                  Size  Used by
quickcam               72996  0
videodev               27904  1 quickcam
v4l2_common            16896  1 videodev
v4l1_compat            14596  1 videodev


From that I guess the driver is installed properly.
But when I run xawtv I get the following.
Code:

This is xawtv-3.95, running on Linux/i686 (2.6.21.7)
xinerama 0: 1024x768+0+0
WARNING: Your X-Server has no DGA support.
can't open /dev/video0: No such device
v4l-conf had some trouble, trying to continue anyway
v4l2: open /dev/video0: No such device
v4l2: open /dev/video0: No such device
v4l: open /dev/video0: No such device
no video grabber device available


I've read under similar topics that this is because the wrong driver is installed so I tried a couple of other generic ones which had no effect and then tried compiling the quickcam driver from source which led to loads more issues then those I already have.

So at present I'm rather lost. Confused If anyone has any ideas or help to offer I'd be extremely grateful.
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MU


Joined: 24 Aug 2005
Posts: 13642
Location: Karlsruhe, Germany

PostPosted: Fri 09 May 2008, 17:44    Post_subject:  

try muppywebcam, it supports gspca and pwc drivers, that cover many cams:
http://murga-linux.com/puppy/viewtopic.php?mode=attach&id=8941

It has a menu-entry, or run it in a consolewindow to see messages by typing:
Muppywebcam

Mark

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Marblemike

Joined: 09 May 2008
Posts: 36

PostPosted: Sat 10 May 2008, 05:54    Post_subject:  

Great!

You're a legend! Very Happy

That works perfectly. Turns out the Quickcam Express uses the GSPCA driver and not any of the quickcam drivers themselves.

Thanks again.
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reginr

Joined: 13 Jul 2008
Posts: 17

PostPosted: Mon 14 Jul 2008, 22:34    Post_subject: How about Linux Puppy 4.00 Dingo
Sub_title: Puppy 4.00
 

Is the pup file able to work with Puppy 4.00?

Please advise,
Thanks
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MU


Joined: 24 Aug 2005
Posts: 13642
Location: Karlsruhe, Germany

PostPosted: Tue 15 Jul 2008, 05:03    Post_subject:  

yes and no.
It should work to load the Kerneldrivers, if you have the version with Kernel 2.6.21.7 (the recommended Puppy 4).

Xawtv seems to need some more libs in Puppy 4, but that is no problem, you don't really need it.
Just run
/usr/local/Muppywebcam-Puppy301/Muppywebcam-nogui
from a consolewindow.

This loads the drivers.
Then you should be able to see your cam in applications that support it, like skype or Amsn.

If that works, you can add that line to /etc/rc.d/rc.local, to load the drivers, when Puppy boots.

Mark

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yim


Joined: 01 Sep 2007
Posts: 167
Location: Blue Ridge Mtns

PostPosted: Wed 17 Sep 2008, 22:58    Post_subject:  

MU

just wanted to thank you for the muppywebcam I used the no gui as you said and opened skype and wa la away we go, works like a charm

thanks again

yim
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