Hi, I see what you mean. It seems to appear when your harddisk or other storage is active? I think it is electromagnetic interference from your storage hardware. What do you use? A harddisk or some kind of SD card adapter?
yes…there is a lot of upgrades…I was using a TF536 with updated firmware…still the same effect…I`m now using a Relocated PiStorm…both of these use a SD card…maybe its the cable from the Denice Adapter thats long(A2000…?)
I have not tried the Denise adapter in A2000. The system is designed to use the videoslot adapter in A2000. Does that behave differently? Also, what if you remove all but the bare minimum of upgrades? It is hard for me to diagnose problems like this remotely, because everybody’s setup is unique. You will have to do some research and testing yourself. Some people had success with a ferrite clamps for the flat cable, but I’m not sure if they would help in your case. If you’re interested, i can post the product name/model numbers.
If you want to try C, you need to buy 2x Fair-Rite Flat Cable EMI
Suppression Cores (Part No. 2643168251) and two clips to hold them
together, Part No. 0199016051. You can get them at mouser or digikey,
A…gave me graphics glitches and other issues.
B…I dont want to return it
C…I might try this
D…as it was the A500 version specified when buying and Denice
Adapter was part of the order i would have thought a shorter
Cable would have been supplied.
E…use a RGBtoHDMI adapter and Cool Duel monitor setup