49 minutes ago, Lukyp said:
That is an old post where amdgpu did not have proper hardware support
I figured it out! I saw a thread suggesting someone to rollback their version of Ubuntu, I restarted the system and then went to advanced start-up, from version:
xxxx.39 -> xxxx.20 and booted the system and everything worked fine straightaway, 0 flicker. Does this mean the latest version of Ubuntu has some issues with certain drivers? Is this common? Thanks for all the help too!
EDIT: Wow even all the audio drivers straight up work fine, this seems to be a more stabled version of Ubuntu so I don't know why it served my the 'buggy' version.
The highlighted selection is the version I am now running Ubuntu, with Linux 4.15.0-20-generic.
So this was a little inconvenient but I'm glad I got it fixed and I'm looking forward to using Ubuntu more.
EDIT: This suggested fix from @Lukyp worked too.
You'll need to put those in /etc/default/grub as sudo with an editor you like, like I did in there in GRUB_CMDLINE_LINUX_DEFAULT