Arch Linux

hidc

Member

Registered: 2009-01-27

Posts: 2

Webcam problem

Hello everybody.

Just moved from Windows to Arch, and it's already a pleasant experience. Everything is working as it should, but there's one problem:

I have cheap USB webcam, which is found as /dev/video0. Hovewer, "lsusb" does not show any info about it.

Bus 005 Device 001: ID 1d6b:0001 
Bus 004 Device 001: ID 1d6b:0001 
Bus 003 Device 001: ID 1d6b:0001 
Bus 002 Device 002: ID 17a1:0128 
Bus 002 Device 001: ID 1d6b:0001 
Bus 001 Device 001: ID 1d6b:0002

Here's what seems to be related in dmesg | less:

usb 2-1: new full speed USB device using uhci_hcd and address 2
...
Linux video capture interface: v2.00
gspca: main v2.3.0 registered
gspca: probing 17a1:0128
input: ImExPS/2 Generic Explorer Mouse as /class/input/input5
t613: Bad sensor reset 03
gspca: probe ok
usbcore: registered new interface driver t613
t613: registered
...
gspca: frame overflow 41002 > 40960
gspca: frame overflow 41458 > 40960
gspca: frame overflow 40986 > 40960
gspca: frame overflow 41174 > 40960
gspca: frame overflow 41474 > 40960
gspca: frame overflow 41292 > 40960
gspca: frame overflow 40970 > 40960
gspca: frame overflow 40980 > 40960
gspca: frame overflow 41224 > 40960
gspca: frame overflow 40978 > 40960
gspca: frame overflow 41398 > 40960
gspca: frame overflow 41006 > 40960
gspca: frame overflow 41020 > 40960
gspca: frame overflow 40962 > 40960
gspca: frame overflow 40994 > 40960

Testing video in Skype gives distorted changing colours. After "LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so skype", upper side of the test window shows distorted upside-down webcam image, and bottom side just changing colours.

Skype Xv: Xv ports available: 17
Skype XShm: XShm support enabled
Skype Xv: Using Xv port 57
libv4lconvert: Error decompressing JPEG: fill_nbits error: need 3 more bits
libv4lconvert: Error decompressing JPEG: fill_nbits error: need 1 more bits

I don't know anything about this cam, exept that it is Xpoint, and could not find any info about it or problems related to it. What can I try to do?

Thanks.

Last edited by hidc (2009-01-27 15:46:52)

hidc

Member

Registered: 2009-01-27

Posts: 2

Re: Webcam problem

Ok, I found this http://n2.nabble.com/Problem-streaming- … 79204.html. Unknown sensor seems to be added and update should fix my problems. The question now is, how can I update my gspca drivers to the newest ones?