Monitor flickering, generally speaking, is caused by a disconnect between your computer's display drivers and your physical monitor.

To fix the Flickering and White Screen issue while trying to play COD Modern Warfare 2 on your PC, you need to take the following steps.

Microsoft's newest optional cumulative update fixes an issue with News and Interests flickering in the taskbar or making File Explorer unresponsive, and includes a good number of fixes.

If DisplayPort DP 1.3 or 1.4 monitor displays a blank or black screen, or flickers, use NVIDIA DisplayPort Firmware Update tool to fix the issue easily.

Modern Warfare 2 screen flickering and tearing can be extremely annoying, but we’ve got a few potential quick fixes to sort them out ...