- Edited
SAH I had your problem when i updated from 1809 to 1909, but the recovery was enough for me to fix the problem. So I don't know how to help you.. i would try to install a clean 1909 to see if something changes!
BTW the 1809 is fine on my latitude E5550 but not with my desktop PC (AMD 480X).
Edit: I've seen a difference from these 2 systems. The notebook have W10 1809 with display driver 2.0 (very old) instead the desktop has W10 1809 with display driver 2.5 (the right driver of 1809, the 1903 has got the 2.6 and the 2004 2.7).
Now I have to try to install an old versions of this display driver but I don't understand if it's something inside the GPU driver or inside the OS! I am trying