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Switching screens using DVI switcher while PsychoPy running makes the screen black


I am running an experiment with EEG, and I have a DVI switcher that can switch and back the monitor for PsychoPy screen for running experiments, and other monitor to show waveforms for EEG software.

When I switch screens when PsychoPy is not running, there is no problem at all.

However, while the PsychoPy experiment is running, and I want to switch screens for checking out the EEG software, the screen will remain blank when trying to return back to the PsychoPy monitor.

I am assuming this isn’t really a programmatic issue, but was wondering if anyone had similar issues and knew any roundabouts. Thank you.