I bought a new Dell Vostro 3500 laptop some months back. Intel i5 processor (11th gen), 8GB RAM, 1TB hard disk, 64 bit with Windows 10 preinstalled. I have upgraded to Windows 11 recently. I have been using LXLE versions since 2014 with complete satisfaction on an old machine, the last version used being LXLE 18.04. I want to continue with LXLE but when I tried to dual boot LXLE 18.04 (64 bit) using a bootable USB pen drive all I got was a black screen. Any suggestions how to overcome this problem?

Thanks.