gspca_vc032x finds my camera but fails to return frames properly

[Mike Lundy]

Binary package hint: linux-image-2.6.27-4-generic

The module loads and seems to detect my camera, but the indicator light on the camera no longer flashes when it is detected. /dev/video0 is created for the camera, but does not return frames correctly.

From various programs:

========================

cheese 2.24.0:
"Stream contains no data"

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VLC 0.8.6h Janus:
[00000300] v4l demuxer error: failed syncing new frame
[00000300] v4l demuxer error: failed capturing new frame
[... repeat last, ad infinitum ...]

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If I cat /dev/video0, the camera indicator light comes on, and binary data comes out.

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mplayer tv:// -tv driver=v4l:device=/dev/video0:width=640:height=480

Indicator light goes on, scrambled video is returned (but it's definitely video and not just arbitrary noise, but i appear more than once in the frame, and there is a grid of green blobs, as well as smaller black dots)

Playing tv://.
TV file format detected.
Selected driver: v4l
=================================================================
 WARNING: YOU ARE USING V4L DEMUXER WITH V4L2 DRIVERS!!!
 As the V4L1 compatibility layer is broken, this may not work.
 If you encounter any problems, use driver=v4l2 instead.
 Bugreports on driver=v4l with v4l2 drivers will be ignored.
=================================================================
Selected device: USB2.0 Web Camera
 Capabilites: capture
 Device type: 1
 Supported sizes: 48x32 => 640x480
 Inputs: 1
  0: vc032x: (tuner:0, norm:pal)
Using input 'vc032x'
Selected input hasn't got a tuner!

Opening video decoder: [raw] RAW Uncompressed Video
VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [xv] 640x480 => 640x480 Planar YV12 [fs]
Selected video codec: [rawyv12] vfm: raw (RAW YV12)
==========================================================================
Audio: no sound
Starting playback...

ioctl mcapture failed: Invalid argument
V: 0.0 1/ 1 ??% ??% ??,?% 0 0
ioctl mcapture failed: Invalid argument
[... etc ...]

========================

mplayer tv:// -tv driver=v4l2:device=/dev/video0:width=640:height=480 says:
Playing tv://.
TV file format detected.
Selected driver: v4l2
Selected device: USB2.0 Web Camera
 Capabilites: video capture read/write streaming
 supported norms:
 inputs: 0 = vc032x;
 Current input: 0
 Current format: unknown (0x55595659)
tv.c: norm_from_string(pal): Bogus norm parameter, setting default.
v4l2: ioctl enum norm failed: Invalid argument
Error: Cannot set norm!
Selected input hasn't got a tuner!
v4l2: ioctl set mute failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
FPS not specified in the header or invalid, use the -fps option.
No stream found.
v4l2: ioctl set mute failed: Invalid argument
v4l2: 0 frames successfully processed, 0 frames dropped.

========================

Camera is:

Bus 005 Device 003: ID 0ac8:c002 Z-Star Microelectronics Corp. Visual Communication Camera VGP-VCC1

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When gspca_vc032x loads, this is what I get in dmesg:

[ 31.065027] vc032x: check sensor header 44
[ 31.092758] vc032x: Read Sensor h (0x00) m (0x00) l (0x00)
[ 31.101264] vc032x: Read Sensor h (0x00) m (0x60) l (0x76)
[ 31.101637] vc032x: Find Sensor OV7660
[ 31.104556] usbcore: registered new interface driver vc032x
[ 31.105609] vc032x: registered

========================

Last known version that worked: current stable gspca in hardy, 2.6.24-21
It broke on the upgrade to intrepid.
Current version of linux-image is 2.6.27-4.6

[forevertheuni (forevertheuni)]

same here

[Giovanni Lovato (heruan)]

Same with 2.6.27-5-generic:

# sudo modprobe gspca_vc032x
# dmesg | tail
[23214.597615] gspca: probing 046d:0892
[23214.805950] vc032x: check sensor header 44
[23214.819964] vc032x: Read Sensor h (0x00) m (0x30) l (0x31)
[23214.834953] vc032x: Read Sensor h (0x00) m (0x30) l (0x31)
[23214.849977] vc032x: Read Sensor h (0x00) m (0x30) l (0x31)
[23214.850924] vc032x: Find Sensor PO3130NC
[23214.856121] gspca: probe ok
[23214.856162] usbcore: registered new interface driver vc032x
[23214.856168] vc032x: registered
# ls -l /dev/video0
crw-rw----+ 1 root video 81, 0 2008-10-06 15:40 /dev/video0

It seems all okay, but... All applications fail or crash opening the video stream.

[Launchpad Janitor (janitor)]

Per a decision made by the Ubuntu Kernel Team, bugs will longer be assigned to the ubuntu-kernel-team in Launchpad as part of the bug triage process. The ubuntu-kernel-team is being unassigned from this bug report. Refer to https://wiki.ubuntu.com/KernelTeamBugPolicies for more information. Thanks.