I see, there is a solution. Thanks.
When will it be in the stable PPA

Yes, for me this is clear now.
Maybe a note can be added somewhere in the INDI client documentation, maybe in the Standard Property page, that changing the binning can change the CCD_FRAME value, despite it is unbinned pxiel.

Thomas, the stable ppa is already without the change that reduce the maximum frame size in binning 1x1, so you can install this version now.
You can check the frame size is 4656x3520 after connection to be sure this is this version.

Then you can install this test version of CCDciel that include the new way to handle binning and ROI:
vega.ap-i.net/tmp/ccdciel_0.9.55-1550_amd64.deb

Please report in the CCDciel bug tracker if you get any problem with this version.

Patrick

Thanks Patrick. I checked and the stable Linux build indeed gives 4656x3520 for my ASI1600MM and the nightly build gives 4640x3520.


Wouter

AIUI this camera hardware requires that the image width (and start X?) is a multiple of 8 pixels, so widths of 8, 16, 24, 32 etc. If the user asks for 20 then could the camera be asked for the next multiple up, so 24 pixels, then the driver software extracts the the required data from the larger frame supplied by the camera?
I understand this is more complex for the driver but the client would get what they asked for.

Hello Patrick,
I can confirm, that it works with your provided version.
Thomas

I've created a fix for the the problem and posted a pull request: github.com/indilib/indi/pull/929

@Chris: sounds reasonable, but requires much more effort. Feel free, the sources are available

- Wolfgang

It wouldn't be a good idea for me to do this because I don't have any hardware to test on.