I haven't played COD:MW in a while and I had to update the game, after this update I could no longer set it at 1440p. When you launch safe mode, it defaults to 720p. The game freezes my whole computer and usually becomes a black screen when I try to set it up for 1440p. I have no idea what's doing this since I haven't OC'd anything and I haven't changed my system specs. I'm running a 3700x, Corsair 16gb 3200mhz ram, EVGA 3060, asus tuf motherboard, Corsair RM750x PSU. This seems to only happen with COD:MW. All drivers are up to date.
Greetings, if the issues only persist with one game, we would suggest to look into troubleshooting through the game, or game client itself. Also try tips found on user forums for the games to see if there any recommended settings changes to try for the game's graphics or overall settings.
Here are some places to look: https://us.battle.net/support/en/article/7655 and https://us.forums.blizzard.com/en/blizzard/c/desktop-app-tech-support/7
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