Defects in video output.

[ludekst]

Hello.
What can be the cause of defects in the image? RGB2HDMI output.
Thanks

[bwinkel67]

Oh dear, it looks like a glitch in the Matrix.

[Cristian]

Hi,
except the video defect, does the QL work normally/properly?
You are using an upscaler: some of them may have problems with QL video output. I suggest to try to connect the QL to a TV (via RGB-SCART or via antenna cable) and check if you see the same defect.
Have you tried also without memory expansion?

[Derek_Stewart]

Hello.
What can be the cause of defects in the image? RGB2HDMI output.
Thanks

Hi

Try changing the setting in the control panel of the RGB2HDMI

If this doe snot work, try looking a Stardot.org where the designers usually is available to help with the problem.

[jobdone]

Did you ever solve this issue? I remember when first building one of these I had noise on the screen too caused by the PSU (a cheap phone charger), I changed the PSU and the issue disappeared. I would suspect the CPLD though as it is fairly constant.