Comment 10 for bug 1848900

@Morten

I think that all Ryzen motherboards are going to have UEFI firmware rather than the old BIOS firmware - even though everyone keeps using the old name.

If it is your computer and you know what you are doing you could turn off secure boot. If you don't know, then don't do it.

I grabbed all of these files;

CHECKSUMS
CHECKSUMS.gpg
linux-headers-5.4.0-050400rc7_5.4.0-050400rc7.201911102031_all.deb
linux-headers-5.4.0-050400rc7-generic_5.4.0-050400rc7.201911102031_amd64.deb
linux-image-unsigned-5.4.0-050400rc7-generic_5.4.0-050400rc7.201911102031_amd64.deb
linux-modules-5.4.0-050400rc7-generic_5.4.0-050400rc7.201911102031_amd64.deb

@Kai-Heng

Rc7 is better than rc6, but not a lot.

I might have imagined the part about the VGA port being reported as a VGA port. Sorry. That was probably when I had the graphics card plugged in. The VGA port is being reported as a second Display Port again.

With a fresh install of Eoan Ermine Xubuntu, updates, and rc7;

Standard boot gives a badly pixelated display for menus, moving windows, changing text; xrandr reports reasonable things, then after 10 or 20 minutes the machine locks up.

Booting with safe graphics from the grub menu gives a stable display, but xrandr seems confused and only reports one mode with a 77 Hz vertical refresh rate, and no mention of any ports.

Do you want log files, or anything in particular?