Hello! New Manjaro user here, but not new to Linux.
When trying to install Manjaro 20.2.1 (Gnome edition), the installer would not show up. Switching to TTY 3 and back to 2 I would see the mouse cursor for a brief moment, before the screen going black again. I managed to get around this by logging in on TTY2 and restarting GDM. (Had a similar experience a week ago when installing Solus, which I solved by setting GDM to wait a second before starting. If any boot image creators are reading this, you should do that for compatability sake.)
I install Manjaro, reboot, and am experiencing the same problem. This time, however, I cannot login to restart GDM, because this is a fresh install and I haven’t set up my credentials yet. (I wasn’t asked during the install process, which I found odd)
I’m using an AMD GPU (R9 290), so I don’t think it’s a driver issue.
Looking for advice / any idea if there is a default set of credentials I could use to restart GDM. I also read that some people have solved similar black screen issues by setting acpi=false in Grub, but I have a UEFI install, so no Grub