I've got an issue with my HDLink Pro DVI unit that has so far proved a mystery.
If I take an SDI signal from the decklink extreme 3D+ (8.6) card into the HD Link Pro (3.5.1) and take DVI out, the picture is split horizontally. When I connect the decklink straight into the monitor, all is OK.
And it's only apparent with 50Hz based signals. ie: select HD1080psF25 or HD1080i50 from within Resolve Video Monitoring will cause the issue. Whereas, selecting HD 1080psF23.98 or HD 1080i59.94 all is OK.
It's a strange one but must a HDLink issue as straight from the decklink is OK. I have also connected different monitors (plasma tv and 2 LCD PC monitors) to the HDLink and all had the same split-screen issue with the 50hz based signals. I also tried all the firmware that is available on the BM website, but no fix. Finally, had the local distributor replace the unit, but with exactly the same issue.