Hey Tim,
this is a frequently asked question/reported issue. You can use the search function of this forum.
- It could be caused by EMI. This sounds like the frequently reported EMI-caused monitor intermittent issue. This is usually solved by getting ferrite cores, …
As a workaround, you could attach any HDMI (or DVI-D or DVI-I which is compatible to HDMI) computer monitor or TV to the Onefinity Controller, and a USB keyboard and mouse. Or continue to work remotely via laptop.
In case the display stays black, you can still connect with the laptop later, even during the run of a program.
Welcome to the forum!