Re (2): MTI camera and Hauppauge PVR-150 framegrabber.
* From: Dan Ritter dsr@randomstring.org3
* Date: Thu, 9 Mar 2017 18:11:51 -0500
> I would start with making sure the cable to the camera is good,
Tried three different coax cables. All give essentially the window
illustrated in http://easthope.ca/MTItoPVR150screen.jpg . Bright
strip at the top; black below.
> ... then check that you've set the right input.
When the camera is powered on and off the pattern in the bright strip
changes. Video mute makes the same change. Composite 1 must be
right.
> There are a lot of settings that are available to tweak with
> v4l2-ctl; it's in the v4l-utils package, if you haven't
> installed that yet.
Installed it yesterday. Have read all the settings in the V4L2 Test
Bench and understand about 1/3 rd of them. Haven't yet studied
settings in v4l2-ctl.
The "General Settings" in the V4L2 Test Bench are understandable.
Several of them are set automatically and consistent with specs on the
JVC camera. Seems there should be a reasonable output image rather
than just a white strip above black.
There is no switch or trimmer on the Hauppauge card to be set wrong.
Wondering about a faulty card. Tempted to get another from the store.
If it gives the same output, I'll be more convinced of a problem in
software configuration.
Thanks for the help. This has become a non-trivial problem,
... P.
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