[Bug 8745] ov511 webcam does not work

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Ubuntu | linux





------- Additional Comments From gbauman at gmail.com  2005-07-09 04:41 UTC -------
I have what seems like the same issue - running kernel 2.6.10-5-686/Hoary.

$ dmesg
Linux video capture interface: v1.00
drivers/usb/media/ov511.c: USB OV518 video device found
drivers/usb/media/ov511.c: Device revision 9
drivers/usb/media/ov511.c: Compression required with OV518...enabling
drivers/usb/media/ov511.c: Sensor is an OV6630AE
drivers/usb/media/ov511.c: Device at usb-0000:00:1d.1-1 registered to minor 0
usbcore: registered new driver ov511
drivers/usb/media/ov511.c: v1.64 for Linux 2.5 : ov511 USB Camera Driver

$ ls -l /dev/video0
crw-rw----  1 root video 81, 0 2005-07-08 19:56 /dev/video0

$ cat /dev/video0
cat: /dev/video0: Function not implemented

Gnomemeeting, camorama, etc. all fail to detect the camera. The camera's light
does come on and the device appears to be initialized.

In reading the driver's FAQ on
http://public.planetmirror.com/pub/ov511/faq.html, I noticed a number of
solutions offered:

1. OV518 based cameras need to modprobe ov518_decomp. This module does not
appear to exist on my system and is not present in the output of lsmod. Dmesg
says "Compression required with OV518...enabling"... maybe the decompression
module has been statically linked into the ov511 module, or maybe it's trying to
modprobe ov518_decomp and failing silently? ov518_decomp is supposedly included
with driver 1.54 and later. The available 2.x series ov511 driver does not
require ov518_decomp.

2. "Function not implemented" errors mean that ov518_decomp is not loaded.

So it appears we have two options to fix this particular problem, anyway (not
sure about the problems with other architectures)... either get ov518_decomp to
exist and get loaded when needed, or get Ubuntu to ship with the 2.x driver.

Hope this helps. The camera is supported by linux, it's just a packaging issue
by the look of it. If you can't wait for it to be fixed, try the 2.x driver - it
works great.

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