The UGA-4KDP works with 3440x1440 but I often have problems with it:
-) sometimes after unlocking the pc the screen stays black
-) sometimes after unlocking the pc the screen turns half black (guess the software sees divides the 3440x1440 into 2 screens of 1720x1440)
I’ve found no way to recover from this besides rebooting first, which does not bring back the screen. Then doing a PC shutdown and restart most of the times solves the issue. Sometimes a few cycles are needed.
This issue happened with the 7.8 drives on Win8.1 and now also with the 7.9RC drives on Windows 10.
Any advice on how to get this resolved?