I have a Fujitsu Laptop with a Intel(R) HD Graphics 520 (Skylake GT2) internal graphics card. My graphics on my main display are great. I don't have any issue there. My graphics on my Dell external monitor are problematic. They have illuminated pixels throughout the image on most of the display. What I am referring to is pixels that are lit up that are not in the picture itself. Hopefully the attached photo will help.
I upgraded my display drivers to the newest versions found on https://01.org/linuxgraphics/downloads/stack. I have since rebooted since I updated things as well.
I tested the monitors display with a different Windows based laptop and the display is working perfectly fine...
Please let me know if you would like me to run any commands and which ones to run. Any advice is appreciated! Thanks!