How to run Debian 9 KDE live on a flash drive?

Question

Debian

Greetings. I have been working with linux for a long time. Burned a Debian 9 KDE live image, but when loading, the password entry window for the live user crashes. And with a frequency of about 10 seconds, it starts to reboot (not the entire system, but only the window). Entering the password "live" does not help. On Ubuntu 16.04 it was similar after changing drivers from xorg to nvidia. Unfortunately, in the live version, the logs are not saved on the flash drive. But when reloading the window, an error appears:

xinit: unable to connect to X server: Connection refuesed
xinit: Server error

I tried Debian 9 Gnome live, everything is ok, but I didn't like the design.
How do I run Debian 9 KDE live?

Answer 1

Logged in using Ctrl+Alt+F1 combination. The answer was suggested by chupasaurus

Answer 2

I may not have understood the problem, but I had such a question and I installed ubuntu through a virtual box on a USB flash drive and after and so far there have been no more such problems