The occurrence rate of this issue seems to be correlated to the battery percentage on my laptop. Here is a paste of graphics troubleshooting from : Updated the system with apt-get update/upgrade Switched between XORG and Wayland, and changed refresh rates on both This Tutorial Helps to Randomly Black Screen Issue/Monitor Goes Black Fixed in Windows 10 FixBlackScreen FixGoesBlack Thanks Friends For Watching this. Updated to latest firmware on Thinkpad Pro Dock Made sure all cables are properly connected The KVM is also connected to my Windows 10 desktop, but i have never experienced any issues on that, which is why I'm thinking it may be an Ubuntu issue.Ĭhanging refresh rates on both screens to 60, 59,94 and 50hz Samsung 27' + Acer 24' monitors -> TESmart Dual Monitor KVM via HDMI -> Thinkpad Pro Dock via HDMI/DisplayPort -> Lenovo Thinkpad T440p Ubuntu 20.04 LTS. It affects both my external monitors, usually the one i am currently working on. This happens every other minute, but sometimes i can sit for 30 minutes before it happens again. I have a really irritating issue where my external monitors randomly goes black for a few seconds and then returns.

Monitor goes black randomly windows 10