Public bug reported:
Ubuntu 19.04
Problem:
Booting from live media OR installed ubuntu fails with a blank, black screen
and total system hang.
How to reproduce:
Using AMDGpu driver and AMD 4th Gen GCN GPU, try to boot Ubuntu 19.04 (or 18.04)
Resolution:
Manually updating kernel to 5.1 and adding the "amdgpu.dc=0" kernel boot
parameter seems to fix the problem.
inxi -SGxxx Output:
System:
Host: ---- Kernel: 5.1.0-050100-generic x86_64 bits: 64
compiler: gcc v: 8.3.0 Desktop: Gnome 3.32.1 wm: gnome-shell
dm: GDM3 3.32.0 Distro: Ubuntu 19.04 (Disco Dingo)
Graphics:
Device-1: AMD Ellesmere [Radeon RX 470/480/570/570X/580/580X]
driver: amdgpu v: kernel bus ID: 07:00.0 chip ID: 1002:67df
Display: x11 server: X.Org 1.20.4 driver: ati,fbdev
unloaded: modesetting,radeon,vesa compositor: gnome-shell
resolution: 1920x1080~60Hz
OpenGL: renderer: Radeon RX 570 Series (POLARIS10 DRM 3.30.0
5.1.0-050100-generic LLVM 8.0.0)
v: 4.5 Mesa 19.0.2 direct render: Yes
** Affects: xserver-xorg-video-amdgpu (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1837945
Title:
AMD RX 570 Black Screen at boot
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