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Old 12-25-2005, 02:05 PM   #1
mattl
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Registered: Mar 2004
Location: MA, USA
Distribution: OpenSuse 10, FC4/5, Mepis
Posts: 95

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pwc or usb webcam probs under suse 10


after moving from 9.3 to opensuse 10 my quickcam 4000 no longer works, ive already spent countless hrs on this its maddening. pwc modules is included and runs ok it appears (though does not easily unload with modprobe -r). i can see the camera correctly identified in my logs, and webcam program appears to work but shows a Blank image. i recall once when setting it up id use xawtv to try a different source and i was able to get it to work. this doesnt work. /dev/video0 is there, correct permissions.
i dont understand how the modules are compiled into the kernel , previously i had copied the pwc.ko to the right location and i was able to get it to work that way on suse 9.3

any ideas what i should look at? i only need the webcam program with vfl to work. actuallyt yr i went out and bought this webcam model just for linux compatibilityt so i hope i can get it again. \\thank you for any ideas.

Last edited by mattl; 12-27-2005 at 10:13 PM.
 
Old 12-26-2005, 11:45 PM   #2
mac57
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Registered: Nov 2004
Location: Texas
Distribution: openSUSE 10.3, Yoper Linux 3.0 , Arch Linux 2007.08
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In SuSE 9.3, I found that SuSE simply didn't know how to handle my Quickcam 4000. To overcome this, I went to www.saillard.org and got the latest driver. Then I just followed the instructions and built and installed from source. I had instant success at that point. I have built the Saillard driver on numerous linux distros, some with great difficulty and some very easy. SuSE 9.3 was in the "very easy" camp. I hope that SuSE 10.0 may also be in the "very easy" camp.

If you haven't already, build the driver yourself. To build the driver, you will need the kernel-source package installed at least - there may be others, but I don't think so.

You may also wish to pick up the camstream program, which is quite useful for testing that your Quickcam is working - it has a detailed knowledge of the Phillips chipset that this camera uses. You can get camstream at http://www.smcc.demon.nl/camstream/

Good luck! I hope this all works as well on SuSE 10.0 as it does on SuSE 9.3
 
Old 12-27-2005, 10:12 PM   #3
mattl
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Registered: Mar 2004
Location: MA, USA
Distribution: OpenSuse 10, FC4/5, Mepis
Posts: 95

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Hi, thanks for the response, I have done what you describe with the latest driver though you might be glad to know they included that pwc driver in os10 which is cool. I think I have usb problems. i have since notice my officejet not being recognized either (usb). oddly, once i load the pwc driver i can see it listed as a usb device. i have read some things to do with uhci and ohci driver problems with usb. i think ive found where to enable or disable one or the other in the kernels menuconfig, and I have been making some guesses lacking any other info. still no luck. I am running an via eden board. anyhow, when i start my webcam i can get it working briefly then it quits, i get the following errors in my messages log. i also notice as i said that i cannot unload pwc as it hangs. i used to do this in my crontab to start and stop the cam at certain times of day). I tried using the newest pwc off sailar instead of the one built in , same results. log sections follow, thanks!

Dec 23 13:40:37 lamplight2 kernel: pwc Frame buffer underflow (3365 bytes); discarded.
Dec 23 13:40:37 lamplight2 kernel: pwc Frame buffer underflow (447 bytes); discarded.
Dec 23 13:40:46 lamplight2 kernel: pwc pwc_isoc_handler() called with status -84 [CRC/Timeout (could be anything)].
Dec 23 13:40:46 lamplight2 kernel: pwc pwc_isoc_handler() called with status -84 [CRC/Timeout (could be anything)].
Dec 23 13:40:50 lamplight2 kernel: pwc pwc_isoc_handler() called with status -84 [CRC/Timeout (could be anything)].
Dec 23 13:40:50 lamplight2 kernel: hub 1-0:1.0: port 1 disabled by hub (EMI?), re-enabling...
Dec 23 13:40:50 lamplight2 kernel: usb 1-1: USB disconnect, address 2
Dec 23 13:40:50 lamplight2 kernel: pwc pwc_isoc_handler() called with status -108 [Unknown].
Dec 23 13:40:50 lamplight2 kernel: pwc Error (-19) re-submitting urb in pwc_isoc_handler.
Dec 23 13:40:50 lamplight2 kernel: pwc pwc_isoc_handler() called with status -108 [Unknown].
Dec 23 13:40:50 lamplight2 kernel: pwc Error (-19) re-submitting urb in pwc_isoc_handler.
Dec 23 13:40:50 lamplight2 kernel: pwc Disconnected while webcam is in use!
Dec 23 13:42:56 lamplight2 kernel: pwc Closing video device: 167 frames received, dumped 22 frames, 5 frames with errors.
Dec 23 13:46:04 lamplight2 kernel: pwc Deregistering driver.
Dec 23 13:46:04 lamplight2 kernel: usbcore: deregistering driver Philips webcam
 
Old 12-28-2005, 09:14 PM   #4
mattl
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Registered: Mar 2004
Location: MA, USA
Distribution: OpenSuse 10, FC4/5, Mepis
Posts: 95

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im starting to reach my threshold for pain,
has anyone installed suse 9.3 over Opensuse 10?
man!!
 
  


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