strange image distortion after waking from sleep

[Memphis Raines]

I am at a loss, I have had this problem for a while, I have changed every connection i can think of but it keeps happening

if the system or just the monitor goes to sleep, randomly it will return distorted, I took a photo and a screenshot, but the screenshot was not distorted..

I have tried 2 DP cables, and HDMI, 2 different Gfx cards (1060 and 1070) and still it happens.. I have also reset my monitors settings.

I cant pin down the cause, my next test will be a seperate monitor, but the only one i have, only has a VGA port

 

[Memphis Raines]

thanks for the replies, so things to note so far..

• It seems to only do it after an extended time with the screen off, but system fans still on

• the current system is now Ryzen 1800x and MSI B450 with the latest bios.

• there are also seemingly well documented sleep problems with the Ryzen based systems,

• one thing that did just happen is the board failed to post after reboot when the screen distortion occurred.. had to manually power down and power on..

• checked the refresh rate, and it was running on the generic pnp monitor driver at 59hz instead of 60hz, so i installed the proper monitor driver