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I have recently tried a NoIR camera in my new appartment and started getting this strange interference, see photo below. I comes and goes randomly but happens mostly at night in a dark room. Sometimes it can go on a whole night, every minute or so, and sometimes just for minute.

I have used the same setup on a Pi0w and on a Pi2+ before without this problem and I do not think the software has changed.

Could this be some sort of magnetic interference or should I be looking at hardware or software issues? What can I do about it? enter image description here

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  • Software issue. Run sudo apt update && sudo apt dist-upgrade -y to resolve it.
    – Dougie
    Oct 14, 2019 at 8:02
  • Great! I will try that and get back! Oct 15, 2019 at 19:00

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Yes! Thanks @Dougie

That seems to fix it.

Apparently there is a new AWB algorithm to accomodate the Pi4 and this screws with PiNoIR cameras on older pi's The whole discussion is found here: https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=245994

By now it seems to be included in the standard upgrade. I ran sudo apt update && sudo apt dist-upgrade -y as Dougie suggested and have not hade any problems since.

So all cred to Dougie and guys on pi-f

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