I have cuda 7.5 on my windows 10 computer, and my dual screens work fine. Then I installed cuda 10.1, the computer can’t detect the second screen and they are working as duplicates. If I uninstall cuda 10.1, everything works fine again. My display adapters are Intel® UHD Graphics 630 and NVIDIA GeFORCE RTX 2080, and I have two U2419H (DP) screens. I tried many online suggestions, such as update driver or uninstall devices, none of them works. Can anyone help me with this problem? I need to have cuda 10.x for my tensorflow. Thank you very much!