Arch Linux

gaelic

Member

Registered: 2010-08-01

Posts: 111

Webcam issues

Hello.

I'm using a Thinkpad x200 with a built in webcam (uvcvideo). It was working in the past and i was not using it for something like 2 years.
Now i wanted to reactivate it and it even doesn't show up in lsusb:

angus gaelic # lsusb
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 005: ID 0a5c:2145 Broadcom Corp. Bluetooth with Enhanced Data Rate II
Bus 004 Device 002: ID 08ff:2810 AuthenTec, Inc. AES2810
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 002 Device 004: ID 0bdb:1900 Ericsson Business Mobile Networks BV F3507g Mobile Broadband Module
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I've tried the arch-kernel (2.6.35.x) and am now running a self built kernel (2.6.36-rc4), but no difference.

Any suggestions?

Thanks in advance.

soloport

Member

Registered: 2005-03-01

Posts: 442

Re: Webcam issues

what does the following show?

dmesg | grep uvcvideo

soloport

Member

Registered: 2005-03-01

Posts: 442

Re: Webcam issues

Other things to show/try:

find /lib/modules/`uname -r`/kernel -name '*.ko' | grep uvcvideo # look if uvcvideo is installed
lsmod | grep uvcvideo # look if uvcvideo is loaded
modprobe -r uvcvideo # remove
modprobe uvcvideo # re-add

gaelic

Member

Registered: 2010-08-01

Posts: 111

Re: Webcam issues

Here we go:

dmesg|grep uvcvideo
angus gaelic # modprobe uvcvideo
angus gaelic # dmesg|grep uvcvideo
[ 9441.822027] usbcore: registered new interface driver uvcvideo
angus gaelic # find /lib/modules/2.6.36-rc4/kernel/ -name '*ko'|grep uvcvideo
/lib/modules/2.6.36-rc4/kernel/drivers/media/video/uvc/uvcvideo.ko
angus gaelic # lsmod|grep uvcvideo
uvcvideo               47499  0 

The problem is not the uvcvideo driver, but that the system isn't recognising the camera at all. The cam should show up as a usb device but isn't.