I have a similar issue. Dell monitor, Windows 10, though I had the same problem on Ubuntu until I switched over to Windows last week. Sometimes it will start working without having to reattach the expansion card if I just wait about 5 minutes.
I have a similar issue. Dell monitor, Windows 10, though I had the same problem on Ubuntu until I switched over to Windows last week. Sometimes it will start working without having to reattach the expansion card if I just wait about 5 minutes.