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-   -   pwc+webcam issues in F8 (http://www.linux-archive.org/fedora-user/30371-pwc-webcam-issues-f8.html)

Huub 01-06-2008 06:27 PM

pwc+webcam issues in F8
 
Hi,

I recently upgraded from F6 to F8 (kernel 2.6.21-2952.fc8xen). Although
my Philips PCVC690K webcam is recognized as such by the system:


$ dmesg | grep pwc
pwc: Philips webcam module version 10.0.12 loaded.
pwc: Supports Philips PCA645/646, PCVC675/680/690,
PCVC720[40]/730/740/750 & PCVC830/840.
pwc: Also supports the Askey VC010, various Logitech Quickcams, Samsung
MPC-C10 and MPC-C30,
pwc: the Creative WebCam 5 & Pro Ex, SOTEC Afina Eye and Visionite
VCS-UC300 and VCS-UM100.

pwc: Philips PCVC690K (Vesta Pro Scan) USB webcam detected.
pwc: Registered as /dev/video0.
pwc: Philips PCVC690K (Vesta Pro Scan) USB webcam detected.
pwc: Registered as /dev/video0.
$

it isn't recognized as either cam or scanner anymore by software. It
just says there's no cam detected. When I connect it to a Ubuntu 7.04
system (kernel 2.6.20-16-386), it's recognized and works.


Can somebody please tell me what may be going on with F8?

Thanks.

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wwp 01-10-2008 02:54 PM

pwc+webcam issues in F8
 
Hello Huub,


On Sun, 06 Jan 2008 20:27:43 +0100 Huub <huubvanniekerk@gmail.com> wrote:

> Hi,
>
> I recently upgraded from F6 to F8 (kernel 2.6.21-2952.fc8xen). Although
> my Philips PCVC690K webcam is recognized as such by the system:
>
> $ dmesg | grep pwc
> pwc: Philips webcam module version 10.0.12 loaded.
> pwc: Supports Philips PCA645/646, PCVC675/680/690,
> PCVC720[40]/730/740/750 & PCVC830/840.
> pwc: Also supports the Askey VC010, various Logitech Quickcams, Samsung
> MPC-C10 and MPC-C30,
> pwc: the Creative WebCam 5 & Pro Ex, SOTEC Afina Eye and Visionite
> VCS-UC300 and VCS-UM100.
> pwc: Philips PCVC690K (Vesta Pro Scan) USB webcam detected.
> pwc: Registered as /dev/video0.
> pwc: Philips PCVC690K (Vesta Pro Scan) USB webcam detected.
> pwc: Registered as /dev/video0.
> $
>
> it isn't recognized as either cam or scanner anymore by software. It
> just says there's no cam detected. When I connect it to a Ubuntu 7.04
> system (kernel 2.6.20-16-386), it's recognized and works.
>
> Can somebody please tell me what may be going on with F8?

I got my PCVC680K working (using wxcam and ekiga for instance) after
I've installed F8 - a bit amazed 'cause I had problems w/ my pwc using
FC5.

Do you have anything related to pwc in /etc/modprobe.conf?
Are you able to test another V4L device/application? Is it shown by
lsusb (or /proc/bus/usb/devices)?


Regards,

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wwp
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Huub 01-11-2008 06:24 AM

pwc+webcam issues in F8
 
Do you have anything related to pwc in /etc/modprobe.conf?


No. Do you (and if so: what?).


Are you able to test another V4L device/application? Is it shown by
lsusb (or /proc/bus/usb/devices)?


lsusb only shows the attached HP DeskJet 940 and hub.

Thanks for helping out.

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wwp 01-11-2008 08:45 AM

pwc+webcam issues in F8
 
Hello Huub,


On Fri, 11 Jan 2008 08:24:43 +0100 Huub <huubvanniekerk@gmail.com> wrote:

> >
> > Do you have anything related to pwc in /etc/modprobe.conf?
>
> No. Do you (and if so: what?).

I don't know what pwc module option could prevent it from loading w/o a
single trace in system logs. Here I have (remainings from the old times):

#options pwc index=1
remove pwc { /usr/sbin/alsactl store 1 >/dev/null 2>&1 || : ; }; /sbin/modprobe -r --ignore-remove pwc

But nothing that helps I'm afraid.


> > Are you able to test another V4L device/application? Is it shown by
> > lsusb (or /proc/bus/usb/devices)?
>
> lsusb only shows the attached HP DeskJet 940 and hub.

Problems seems at kernel level (USB layer probably). Did you try
plugging the webcam to an USB HUB (self powered or not), and plugging
this external USB HUB to the machine itself?


Regards,

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