second monitor suddenly not detected

[Karl Auer]

On Mon, 2020-09-28 at 23:28 +1000, Karl Auer wrote:
> Well, I have two monitors again.

For completeness, this is the current output from xrandr -q and lshw
-class video. xrandr has much more info. lshw no longer says the
display is "unclaimed", capabilities now include bus-master and rom,
the configuration now shows a driver and the "resources" line now shows
an IRQ.

kauer at kt1:~$ xrandr -q
Screen 0: minimum 8 x 8, current 3600 x 1080, maximum 32767 x 32767
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected 1680x1050+1920+0 (normal left inverted right x axis y
axis) 473mm x 296mm
   1680x1050     59.88*+
   1280x1024     75.02    60.02  
   1152x864      75.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   640x480       75.00    59.94  
DP-2 connected primary 1920x1080+0+0 (normal left inverted right x axis
y axis) 344mm x 193mm
   1920x1080    144.00*+
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)

kauer at kt1:~$ sudo lshw -C video
  *-display                 
       description: VGA compatible controller
       product: TU116M [GeForce GTX 1660 Ti Mobile]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci at 0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master
cap_list rom
       configuration: driver=nvidia latency=0
       resources: irq:158 memory:b3000000-b3ffffff memory:a0000000-
afffffff memory:b0000000-b1ffffff ioport:4000(size=128)
memory:b2000000-b207ffff
-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Karl Auer (kauer at biplane.com.au)
http://www.biplane.com.au/kauer

GPG fingerprint: 2561 E9EC D868 E73C 8AF1 49CF EE50 4B1D CCA1 5170
Old fingerprint: 8D08 9CAA 649A AFEF E862 062A 2E97 42D4 A2A0 616D