Snapshot 20211025 breaks nouveau on Ryzen notebook combo

English Install/Boot/Login
1

Until september 25th everything worked ok, with the september 25th upgrade, i had to manually sudo modprobe nouveau at every boot.

Since the newest update kernel 5.14.14 , the nouveau driver completly segfaults. And xrandr does not even show the USB-C DP-1-1 port anymore.

On the earlier [FONT=monospace]5.14.11-1 I can still manually activate nvidia with [/FONT][FONT=monospace]sudo modprobe nouveau then do CTRL-ALT-DEL and get the third screen activated.[/FONT]

I am using two 4k screens connected to my Ryzen 4800h + 1660t notebook

2

FWIW, on NVidia GF119 [NVS 310] nouveau works as expected.

# inxi -Sy
System:
  Host: p5bse Kernel: 5.14.14-1-default x86_64 bits: 64
  Desktop: KDE Plasma 5.23.1 Distro: openSUSE Tumbleweed 20211025
# inxi -Gay
Graphics:
  Device-1: NVIDIA GF119 [NVS 310] vendor: Hewlett-Packard driver: nouveau
  v: kernel bus-ID: 01:00.0 chip-ID: 10de:107d class-ID: 0300
  Display: x11 server: X.Org 1.20.13 compositor: kwin_x11 driver:
  loaded: modesetting unloaded: fbdev,vesa alternate: nouveau,nv,nvidia
  display-ID: :0 screens: 1
  Screen-1: 0 s-res: 1920x1200 s-dpi: 120 s-size: 406x254mm (16.0x10.0")
  s-diag: 479mm (18.9")
  Monitor-1: DP-1 res: 1920x1200 hz: 60 dpi: 94 size: 519x324mm (20.4x12.8")
  diag: 612mm (24.1")
  OpenGL: renderer: llvmpipe (LLVM 13.0.0 128 bits) v: 4.5 Mesa 21.2.4
  compat-v: 3.1 direct render: Yes
3

Resolved by reinstalling 2021-10 Snapshot and updating to 2021-11 Snapshot.