Intermittent corrupt/garbage frames
Posted: 02 July 2010 03:42 PM   [ Ignore ]
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Hi Alex,
first of all thanks for making available these great drivers!

Now on to my problems…
I’m experiencing an intermittent problem in the video stream; once in a while (i.e. a few milliseconds between a random number of seconds/minutes) the video gets corrupted like in the snapshot you can find attached—after some frames it returns to normal image.

I made sure that when this happens:
1) there are no CPU usage spikes (always around 20% at 640x480, 30 fps)
2) there are no latency spikes (always below 500 microsecs, checking with DPC Latency Checker)

I also tried different modes (e.g. 320x200, 15 fps) and the issue shows at the same rate.

These are my setup specs (pretty modest):
- Single camera
- Windows XP SP3
- Athlon XP 1.5 Ghz
- RAM 512 MB
- USB 2.0 ports connected via PCI (motherboard don’t have any 2.0 builtin ports)

(Yes, I understand my specs don’t satisfy the minimum requirements, but I wanted to report this issue anyway.
I’ll try to test with another setup when I have the chance.)

The image suggest a kind of “lost synchronization”.

Thanks!

——

EDIT: I just found another post regarding this same problem, with Windows XP SP3:
-> http://codelaboratories.com/forums/viewthread/294/

——

Image Attachments
garbage-frame.png
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Posted: 06 July 2010 03:22 PM   [ Ignore ]   [ # 1 ]
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Joined  2009-09-17

This seems like you have a grounding issue, you might wanna try directly hooking up your PS3 to your PC and test different USB ports. Typically this is caused when cable length is to long or there is interference in the USB pathway.

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