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[SOLVED] or [PROBABLY SOLVED] Re: failure of cheese with a Microsoft LifeCam NX-6000

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  [SOLVED] or [PROBABLY SOLVED] Re: failure of cheese with a Microsoft LifeCam NX-6000 peter@easthope.ca - 2022-05-13 19:20 +0200
    [SOLVED] [ADDENDUM] image from VGA output on JVC camera; was: failure of cheese with a Microsoft LifeCam NX-6000 peter@easthope.ca - 2022-05-26 22:00 +0200

#248163 — [SOLVED] or [PROBABLY SOLVED] Re: failure of cheese with a Microsoft LifeCam NX-6000

    From: Reco <recoverym4n@gmail.com>
    Date: Thu, 7 Sep 2017 09:53:12 +0300
> If either of these show something - you're in luck, your hardware is
> supported, etc.
> If not - I'm out of ideas, sorry.

The original objective was to take the VGA output from a JVC camera 
and convert it to a digital image in a commonly used format.

We purchased an adapter made by Inogeni.  Marked on top VGA to USB 3.0.

Apparent serial number VG1903074.

Another number, ICES-3(A)/NMB-3(a), appears to be a model or European 
standards number.

WIth the adapter connected to a USB 2 socket in an available desktop 
machine with Debian, no image was found. Inside the USB A socket the 
contacts are supported by a blade of black or white plastic.

A MS Windows system with a USB 3 socket gave a jaggy image.  =8~)

Recently I put Debian 11 on a Lenovo ThinkCentre equiped with USB 3 
sockets. The plastic blade supporting the contacts is blue.

Initially this gave an image similar to the Windows system.  The VGA 
came from an old laptop where a display resolution of 1024 x 768 had 
worked. Therefore qv4l2 was used to adjust image acquisition to 1024 x 
768. That removed jagginess.  =8~)  The resulting qv4l2 image is 
similar or identical to the display on the source laptop.

When the system is connected to the JVC camera and a microsope, I 
should be able to give a further update.

Thanks to Reco and others for replies.

Footnote 
"USB 3.0 essential for output" is more stringent than "USB 3.0 
supported".  If v4l in the original system had produced a message that 
a USB 3 device was connected to inadequate USB 2, that would have been 
helpful. 

Regards,                   ... P.


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#248487 — [SOLVED] [ADDENDUM] image from VGA output on JVC camera; was: failure of cheese with a Microsoft LifeCam NX-6000

Currently camera output is displayed by qv4l2 and transferred to GIMP
using File > Create > Screenshot.  GIMP allows annotation of the image 
and export as JPG or PNG.

Probably there's a more direct way to acquire the image from the 
Inogeni adapter into GIMP; ie. skip display with qv4l2.  If GIMP isn't 
needed, put the image directly into a JPG or PNG file.

Ideas?  Suggestions?

Thx,                                ... P.



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