Monitor can not display full screen and Snowflake screen observed after switch the display mode during running Furmark
Need Help to check the root cause for issue fix
1. Run furmark and switch the display mode to the other.
2. Found the monitor can not show full screen / monitor show Snowflake
Note: we can see the issue with LG 27UD88(Max resolution:3840x2160),ViewSonic VX2457(Max resolution:1920x1080),DELL E2416H(Max resolution:1920x1080),HP Z24i(Max resolution:1920x1080)
Analyze result from IHV vender:
Furmark doesn't change test resolution when change display mode