Comment # 5 on bug 1193457 from Felix Miata

Created attachment 855360 [details]
Xorg.0.log from TW 20221116

It's different. This is using neither xrandr nor xorg.con* to try to configure
anything. Judging by command output, one would think all is well:

# xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x43; cap: 0xf (Source Output, Sink Output, Source Offload,
Sink Offload); crtcs: 2; outputs: 3; associated providers: 1; name: modesetting
    output DVI-I-1
    output HDMI-1
    output VGA-1
Provider 1: id: 0xee; cap: 0xf (Source Output, Sink Output, Source Offload,
Sink Offload); crtcs: 2; outputs: 2; associated providers: 1; name: modesetting
    output DVI-I-1-2
    output DVI-I-1-3
# xrandr | egrep 'onnect|creen|\*' | grep -v disconn | sort -r
VGA-1 connected 1680x1050+1920+0 (normal left inverted right x axis y axis)
474mm x 296mm
Screen 0: minimum 320 x 200, current 6160 x 1200, maximum 16384 x 16384
DVI-I-1-2 connected 2560x1080+3600+0 (normal left inverted right x axis y axis)
673mm x 284mm
DVI-I-1 connected primary 1920x1200+0+0 (normal left inverted right x axis y
axis) 519mm x 324mm
   2560x1080     60.00*+
   1920x1200     59.95*+
   1680x1050     59.97*+  74.89    59.95    59.88
# inxi -Sy
System:
  Host: gb970 Kernel: 5.15.12-1-default x86_64 bits: 64
  Desktop: KDE Plasma 5.23.5 Distro: openSUSE Tumbleweed 20220116
# inxi -Gay
Graphics:
  Device-1: NVIDIA GF108 [GeForce GT 630] vendor: Gigabyte driver: nouveau
  v: kernel bus-ID: 01:00.0 chip-ID: 10de:0f00 class-ID: 0300
  Device-2: NVIDIA G84 [GeForce 8600 GT] vendor: XFX Pine driver: nouveau
  v: kernel bus-ID: 05:00.0 chip-ID: 10de:0402 class-ID: 0300
  Display: x11 server: X.Org 1.21.1.3 compositor: kwin_x11 driver:
  loaded: modesetting unloaded: fbdev,vesa alternate: nouveau,nv,nvidia
  display-ID: :0 screens: 1
  Screen-1: 0 s-res: 6160x1200 s-dpi: 120 s-size: 1303x254mm (51.3x10.0")
  s-diag: 1328mm (52.3")
  Monitor-1: DVI-I-1 res: 1920x1200 hz: 60 dpi: 94
  size: 519x324mm (20.4x12.8") diag: 612mm (24.1")
  Monitor-2: VGA-1 res: 1680x1050 hz: 60 dpi: 90 size: 474x296mm (18.7x11.7")
  diag: 559mm (22")
  Monitor-3: DVI-I-1-2 res: 2560x1080 hz: 60 dpi: 97
  size: 673x284mm (26.5x11.2") diag: 730mm (28.8")
  OpenGL: renderer: NVC1 v: 4.3 Mesa 21.3.4 direct render: Yes

However, the screen on the #2 GPU stays black. Neither xrandr --auto --output
DVI-I-1-2 nor xrandr --output DVI-I-1-2 --auto help.