Esteemed,
I need your help.
I recently installed Ubuntu 20.04 on my Thinkpad Yoga X380.
I use an external monitor from LG and whenever it is connected to the notebook's HDMI, Ubuntu does not boot.
Without the cable plugged in, it boots correctly.
I tested a Linux Mint iso and it went normally.
I reinstalled Ubuntu and nothing. I updated, changed the cable and it still remains stuck on the startup screen.
I have no idea what it might be.
Hug!