I’ve been using an NVS810 video card for over a year to drive 7 projectors. Everything worked fine until today when suddenly only 6 projectors are supported. If I plug in a 7th projector, doesn’t matter which of the Mini-DP ports I use, then suddenly ALL the projectors display a no HDMI signal message and stop working. If I unplug the 7th display, within a few seconds all the projectors are showing the desktop background color again and all is well. There have been no windows updates or hardware changes. I tried re-installing the NVS810 suitable driver, doing a cold restart etc. Nothing works. Any ideas?
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