Had to uninstall a ppa ( https://launchpad.net/~ernstp/+archive/ubuntu/mesarc) today, because of another bug ( Graphic Bug with Kernel 5.4.0-58-generic - where do i report this? )
Then this error reoccurs:
inxi -SMG
System:
Host: huppyryzen Kernel: 5.4.0-58-generic x86_64 bits: 64
Desktop: MATE 1.24.0 Distro: Ubuntu 20.04.1 LTS (Focal Fossa)
Machine:
Type: Desktop Mobo: ASUSTeK model: PRIME B350-PLUS v: Rev X.0x
serial: <superuser/root required> UEFI: American Megatrends v: 5602
date: 07/14/2020
Graphics:
Device-1: AMD Vega 10 XL/XT [Radeon RX Vega 56/64] driver: amdgpu
v: kernel
Display: x11 server: X.Org 1.20.8 driver: amdgpu,ati
unloaded: fbdev,modesetting,vesa resolution: 3440x1440~60Hz
OpenGL:
renderer: Radeon RX Vega (VEGA10 DRM 3.35.0 5.4.0-58-generic LLVM 10.0.0)
v: 4.6 Mesa 20.0.8
The error is Mesa related and STILL occurs today in an updated 20.04.1
The Error is fixed somewhere betweeen Mesa 20.0.8 and 20.3.0-rc2