you might want to start by reading the documentation on the dmdext site, understanding the plug-in will help you solve your problem, its how i solved my issue with the conflict.
https://github.com/freezy/dmd-extensions
Your problem has already been solved.
Flickering with PinDMDv3
Some users reported heavy flickering when running via PinballX. Seems that this is linked to the desktop settings. This seems to help:
Go to My Computer
Click on Performance Information and Tools on the bottom left
Click on Adjust Visual Effects at the top left.
When the Performance Window pops up, click on Adjust for Best Appearance. All the boxes should automatically get check marked.
Click on Apply, and then OK to get out.
Thanks to xman72!
Still flickering?
Try boosting how fast dmdext grabs the frames. For example, for Pinball FX2, try:
dmdext mirror --source=pinballfx2 --no-virtual -q --fps 60
Default is 25, which seems too slow for some games.
Thanks smoke007 for the tip!
also a few clarifications
it's either -d or --destination and your dmd is
pindmdv3
format was found here on the site
-d, --destination The destination where the DMD data is sent to. One
of: [ auto, pindmdv1, pindmdv2, pindmdv3, pin2dmd,
virtual ]. Default: "auto", which outputs to all
available devices.
to confirm the dmdext folder is in your c:/drive root correct, not just the .exe?
Did you unblock the .exe and all of your .dll's in the dmdext folder.?
If none of these tips work, you might post the issue on freezys bug site, he does respond and help you out.