Hi again
> It sounds plausibly. But in this case i would expect error -28 (no
> space), rather then -110 (time out).
> Any way, currently only you can test if it's true. If you use debian you
> can probably use precompiled ubuntu kernels:
> http://kernel.ubuntu.com/~kernel-ppa/mainline/
I tested the latest 3 stable kernels: 2.6.39.4, 3.0.13 and 3.1.5 with
no luck. I actually cannot use a kernel lower than 3.0.x (permanently)
because it has no support for my realtek wireless card.
> If still no results, then try other quirks:
> #define UVC_QUIRK_STATUS_INTERVAL 0x00000001
> #define UVC_QUIRK_PROBE_MINMAX 0x00000002
> #define UVC_QUIRK_PROBE_EXTRAFIELDS 0x00000004
> #define UVC_QUIRK_BUILTIN_ISIGHT 0x00000008
> #define UVC_QUIRK_STREAM_NO_FID 0x00000010
> #define UVC_QUIRK_IGNORE_SELECTOR_UNIT 0x00000020
> #define UVC_QUIRK_FIX_BANDWIDTH 0x00000080
> #define UVC_QUIRK_PROBE_DEF 0x00000100
> #define UVC_QUIRK_RESTRICT_FRAME_RATE 0x00000200
Tried all the quirks one by one and nothing. The PROBE_DEF 0x100 quirk
is the only one that doesn't complain in dmesg. The others always
showed this:
[ 5626.340681] uvcvideo: UVC non compliance - GET_DEF(PROBE) not
supported. Enabling workaround.
> then if no results, test if device works at all with some alternate OS :)
Well, unfortunately this isn't an option for me. I could try, but I'm
not sure what that would accomplish, except getting the thing to work
properly. If this would help in bringing support for the linux kernel
then I would consider it.
Lastly I just want to share a few more of diagnostics I've tried:
1. Attached is the output from the CLI utility 'v4l2-compliance
--device=/dev/video0'. It shows a failure in one of the tests: test
VIDIOC_S_PRIORITY: FAIL (-1)
2. Also attached is the log of the utility guvcview when I try to use
with the webcam. It almost always fails...however it worked once
without a problem... how does this make any sense? how is it possible
that it works sporadically? Jitsi, ekiga and linphone fail right away,
but cheese and luvcview also works sporadically...
3. The webcam works flawlessly with the google talk plugin in
conjunction with Firefox 8.0. I know that this plugin uses the 32-bit
version of libv4l. While the other applications I've been trying are
native 64-bit. Thoughts? comments?
Thanks for your help, hopefully this new information will be helpful.
I didn't attach the kernel logs, because they are pretty much
identical.
Regards,
Andres
$ guvcview 1.4.1
video device: /dev/video0
/dev/video0 - device 1
Init. USB Camera Device (location: usb-0000:00:1d.0-1.5)
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
{ pixelformat = 'RGB3', description = 'RGB3' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
{ pixelformat = 'BGR3', description = 'BGR3' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
{ pixelformat = 'YU12', description = 'YU12' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
{ pixelformat = 'YV12', description = 'YV12' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
vid:174f
pid:1420
driver:uvcvideo
checking format: 1448695129
VIDIOC_S_FORMAT - Unable to set format: Input/output error
Init v4L2 failed !!
Init video returned -2
trying minimum setup ...
video device: /dev/video0
/dev/video0 - device 1
Init. USB Camera Device (location: usb-0000:00:1d.0-1.5)
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
{ pixelformat = 'RGB3', description = 'RGB3' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
{ pixelformat = 'BGR3', description = 'BGR3' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
{ pixelformat = 'YU12', description = 'YU12' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
{ pixelformat = 'YV12', description = 'YV12' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30,
{ discrete: width = 1280, height = 1024 }
Time interval between frame: 1/8,
vid:174f
pid:1420
driver:uvcvideo
checking format: 1448695129
VIDIOC_S_FORMAT - Unable to set format: Input/output error
Init v4L2 failed !!
ERROR: Minimum Setup Failed.
Exiting...
VIDIOC_REQBUFS - Failed to delete buffers: Invalid argument (errno 22)
cleaned allocations - 100%
Closing portaudio ...OK
Terminated.
$ v4l2-compliance --device=/dev/video0
Driver Info:
Driver name : uvcvideo
Card type : USB Camera Device
Bus info : usb-0000:00:1d.0-1.5
Driver version: 196869
Capabilities : 0x04000001
Video Capture
Streaming
Compliance test for device /dev/video0:
Required ioctls:
test VIDIOC_QUERYCAP: OK
Allow for multiple opens:
test second video open: OK
test VIDIOC_QUERYCAP: OK
test VIDIOC_S_PRIORITY: FAIL (-1)
Debug ioctls:
test VIDIOC_DBG_G_CHIP_IDENT: Not Supported
test VIDIOC_DBG_G/S_REGISTER: OK
test VIDIOC_LOG_STATUS: Not Supported
Total: 7 Succeeded: 6 Failed: 1
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