[OpenIndiana-discuss] A KVM switch broke my server?! Lightdm is panic'ing the kernel

[Carl Brewer]

I tried using nvidia-xconfig to generate an xorg.conf file in /etc/X11 
and then hand-adding the speeds that my monitor supports.

The monitor is an AOC 27V2Q, which, according to

supports 30-88kHz horizontal and 50-75 Hz vertical so my xorg.conf file, 
now shows (I hand-added the vendor name, model and frequencies)  :


# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 390.144  (dvs-builder at U64-P08-16)  Wed Jun  2 
22:56:17 UTC 2021

Section "ServerLayout"
     Identifier     "Layout0"
     Screen      0  "Screen0"
     InputDevice    "Keyboard0" "CoreKeyboard"
     InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
     FontPath        "/usr/X11R6/lib/X11/fonts/misc/:unscaled"
     FontPath        "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
     FontPath        "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
     FontPath        "/usr/X11R6/lib/X11/fonts/misc/"
     FontPath        "/usr/X11R6/lib/X11/fonts/100dpi/"
     FontPath        "/usr/X11R6/lib/X11/fonts/75dpi/"
EndSection

Section "InputDevice"
     # generated from default
     Identifier     "Mouse0"
     Driver         "mouse"
     Option         "Protocol" "auto"
     Option         "Device" "/dev/mouse"
     Option         "Emulate3Buttons" "no"
     Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
     # generated from default
     Identifier     "Keyboard0"
     Driver         "keyboard"
EndSection

Section "Monitor"
     Identifier     "Monitor0"
     VendorName     "AOC"
     ModelName      "27V2Q"
     HorizSync       30.0 - 88.0
     VertRefresh     50.0 - 75.0
     Option         "DPMS"
EndSection

Section "Device"
     Identifier     "Device0"
     Driver         "nvidia"
     VendorName     "NVIDIA Corporation"
EndSection

Section "Screen"
     Identifier     "Screen0"
     Device         "Device0"
     Monitor        "Monitor0"
     DefaultDepth    24
     SubSection     "Display"
         Depth       24
     EndSubSection
EndSection

No difference, when I run startx or lightdm, the screen blanks, a white 
cursor appears on the top left of the screen, it then reboots.

What else can I try?

Tangentially, I don't really need a console, but I want a remote X11 
display - I can run vncserver and get at VirtualBox's GUI from there, 
but it's defaulting to TWM, which was nice in 1989 ... Is there some way 
to get lightdm to work just with vncserver/Xvnc and not try to run on 
the console - as a workaround, I can live without the console.



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