Linux Mastering Development Ubuntu

Stuck on Black Screen after Install 20.04

finally switching or trying to switch to Ubuntu on one of my machines, and am having problems getting the thing to actually work.

I created a bootable usb on my Win10 pc, and "installed" 20.04 on my other pc. However, when it tells you to restart to complete installation, the pc simply hangs on boot on a black screen. The bios posts, so it’s doing something, but doesn’t go beyond the black screen.

I’ve looked around, and found a thread about running boot-repair, which I did. Here is the pastebin link to what the system told me:

Any and all suggestions would be much appreciated. TIA.


  • Mobo: Asrock x370 Killer Sli/ac
  • CPU: Ryzen 7 1700
  • RAM: 32gb
  • GPU: Sapphire RX580
  • Storage 1: 250gb nvme (Samsung 970) – boot drive
  • Storage 2: 250gb ssd (Crucial MX)
  • Storage 3: 4tb hdd (WD)
  • Display: Generic HDMI External Display

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