Re: -- SPAM -- webcam is not always detected

[Ron Johnson <ron.l.johnson@cox.net>]

On 2009-08-23 03:58, belahcene wrote:
> Hi,
>
> I attached an usb web cam, sometimes it is detected an runs correctly , 
> sometimes not??!! (I am running lenny 5 kernel 2.6.30  same problem with 
> 2.6.26)
>
>
> For example now, cheese doesn't give the photo, while lspci and lsusb give
>
>
> debian:/home/bela# lsusb
> Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 001 Device 002: ID 0c45:62c0 Microdia Sonix USB 2.0 Camera
> Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>
>
> debian:/home/bela# lspci
>
>
> 00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI 
> Controller #1 (rev 01)
> 00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI 
> Controller #2 (rev 01)
> 00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI 
> Controller #3 (rev 01)
> 00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI 
> Controller #4 (rev 01)
> 00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI 
> Controller (rev 01)
>
>
>
> Is there a possibility to force the detection ?

Is this during boot, or while the system is running?

What does dmesg indicate?

Does the webcam have it's own power supply, or does it pull from the 
USB cable?


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