I've found those convertors to be hit and miss.
My son's a school teacher in CA and bought a new laptop to use in his classes. Details of the new computer:
Comp: HP Envy notebook version 1511 running Windows 10 Home. Graphics card: Intel HD Graphics 520.
This new computer does not have a VGA port and he's been trying to use HDMI with a Belkin VGA to HDMI converter. He has developed PowerPoints with animation using PowerPoint 2016 home and office. They all worked fine with his old computer with a VGA port. But when he uses the new computer with the converter, the screen looks great until he runs the PowerPoint and the PowerPoint display is about half the size of the screen. He's tried to run them in Full Screen Mode, and has tried to change the resolution but changing it to wide screen distorts the images and 4:3 makes it too small.
The issue is the lost real estate. He loses about 1.5 to 2 feet around all sides from what he was able to display before. He's changed every resolution setting he could find in PowerPoint, Window 10 and the projector. nothing seems to reclaim the lost real estate.
The school owns the projector and is not likely to replace it with a newer version for at least ten more years.
Businessmen use new computers and old projectors so there has to be a way to get the display to be full real estate and not distorted but we can't find anything on the internet to come even close.
He's spent a day trying to get it to work when he discovered his first converter was bad, so when he got over that frustration, he ran into this. Any suggestions would be greatly appreciated.