The native resolution of my display is 1920x1080 and I'm running on Windows 10. I can run the original engine in this resolution (after setting resolution using regedit). However, when running OpenMW, the resolution falls to 1280x720 when in full screen mode. I can set it to 1080p in the OpenMW launcher or in the settings.cfg. When I hit "play", the launcher closes, my desktop momentarily sets itself to a lower resolution, and the game opens in that lower resolution. When I go to settings in game, it indeed says 1280x720. I can then change the resolution in game setting. The screen flashes and the settings say that I'm now in 1920x1080, but when I look around the game world, I see that these are clearly lies - the resolution is as low as it was. Next time I open the launcher or look at settings.cfg, the resolution is set to 1280x720.
The openmw.log file in my Documents/My Games/OpenMW directory honestly states that it is saving my low resolution just before exiting the same (I've checked: the messages appear only when exiting, not before). Looks like this:
... ommitted for brevity ...
Changed setting: [Video] resolution x = 1280
Changed setting: [Video] resolution y = 720
Updating settings file: "C:\...\My Games\OpenMW/settings.cfg"
Please help! Where should I look for a settings file that's causing this?
P.S. I had this issue with the default engine. Reinstalled the game through Steam - didn't help. Finally ran "Verify integrity of game files." Steam said that it will replace two files (don't know which) and that fixed it. Is there an OpenMW equivalent?