DisplayPort reconnection

[bdols]

Distribution (run cat /etc/os-release): Pop!_OS 20.04 LTS

Related Application and/or Package Version (run apt policy $PACKAGE NAME): x11-xserver-utils

Issue/Bug Description: When switching my LG monitor from DisplayPort to HDMI and back to DisplayPort, X server loses connection

Steps to reproduce (if you know):
I have a System76 Oryx Pro

xrandr -q | grep DP output at the start, DP-2 is the monitor in question
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 connected 3440x1440+1920+0 (normal left inverted right x axis y axis) 800mm x 335mm
DP-3 disconnected (normal left inverted right x axis y axis)
eDP-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 355mm x 199mm

switch to HDMI on the monitor:
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 connected 3440x1440+1920+0 (normal left inverted right x axis y axis) 800mm x 335mm
DP-3 disconnected (normal left inverted right x axis y axis)
eDP-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 355mm x 199mm

switch back to DisplayPort, now in Display settings the display isn't seen for this monitor and xrandr just says connected but no resolution:
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 connected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
eDP-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 355mm x 199mm

My workaround is to unplug my miniDP connector and connect it again. This will detect that it's the previously known display and reorient my workspace as before.

Expected behavior:
That I don't have to replug my DisplayPort connector to restore my desktop.

Other Notes:
I tried the following as a fix, except running xrandr -d $DISPLAY --output DP-2 --auto: https://medium.com/@strayobject/fix-displayport-monitor-not-waking-on-ubuntu-18-10-a1eced577f0a
but, I have to drag the physical display settings in the Displays settings to reorient when trying the --auto.

[bdols]

I'm having better results invoking xrandr with the exact dimensions and monitor layout, like so:
xrandr --output DP-2 --mode 3440x1440 --rate 60 --right-of eDP-1-1

[bdols]

this is my .config/monitors.xml, I don't know how it integrates with xrandr, if at all:

<monitors version="2">
  <configuration>
    <logicalmonitor>
      <x>1920</x>
      <y>0</y>
      <scale>1</scale>
      <primary>yes</primary>
      <monitor>
        <monitorspec>
          <connector>HDMI-0</connector>
          <vendor>GSM</vendor>
          <product>LG HDR WQHD</product>
          <serial>0x00084810</serial>
        </monitorspec>
        <mode>
          <width>3440</width>
          <height>1440</height>
          <rate>59.972618103027344</rate>
        </mode>
      </monitor>
    </logicalmonitor>
    <logicalmonitor>
      <x>0</x>
      <y>0</y>
      <scale>1</scale>
      <monitor>
        <monitorspec>
          <connector>eDP-1-1</connector>
          <vendor>CMN</vendor>
          <product>0x1602</product>
          <serial>0x00000000</serial>
        </monitorspec>
        <mode>
          <width>1920</width>
          <height>1080</height>
          <rate>144.00343322753906</rate>
        </mode>
      </monitor>
    </logicalmonitor>
  </configuration>
  <configuration>
    <logicalmonitor>
      <x>0</x>
      <y>0</y>
      <scale>1</scale>
      <primary>yes</primary>
      <monitor>
        <monitorspec>
          <connector>eDP-1-1</connector>
          <vendor>CMN</vendor>
          <product>0x1602</product>
          <serial>0x00000000</serial>
        </monitorspec>
        <mode>
          <width>1920</width>
          <height>1080</height>
          <rate>144.00343322753906</rate>
        </mode>
      </monitor>
    </logicalmonitor>
    <logicalmonitor>
      <x>1920</x>
      <y>0</y>
      <scale>1</scale>
      <monitor>
        <monitorspec>
          <connector>HDMI-0</connector>
          <vendor>unknown</vendor>
          <product>unknown</product>
          <serial>unknown</serial>
        </monitorspec>
        <mode>
          <width>1024</width>
          <height>768</height>
          <rate>60.003841400146484</rate>
        </mode>
      </monitor>
    </logicalmonitor>
  </configuration>
  <configuration>
    <logicalmonitor>
      <x>0</x>
      <y>0</y>
      <scale>1</scale>
      <primary>yes</primary>
      <monitor>
        <monitorspec>
          <connector>eDP-1-1</connector>
          <vendor>CMN</vendor>
          <product>0x1602</product>
          <serial>0x00000000</serial>
        </monitorspec>
        <mode>
          <width>1920</width>
          <height>1080</height>
          <rate>144.00343322753906</rate>
        </mode>
      </monitor>
    </logicalmonitor>
    <logicalmonitor>
      <x>1920</x>
      <y>0</y>
      <scale>1</scale>
      <monitor>
        <monitorspec>
          <connector>DP-2</connector>
          <vendor>GSM</vendor>
          <product>LG HDR WQHD</product>
          <serial>0x00084810</serial>
        </monitorspec>
        <mode>
          <width>3440</width>
          <height>1440</height>
          <rate>59.972618103027344</rate>
        </mode>
      </monitor>
    </logicalmonitor>
    <disabled>
      <monitorspec>
        <connector>HDMI-0</connector>
        <vendor>GSM</vendor>
        <product>LG HDR WQHD</product>
        <serial>0x00084810</serial>
      </monitorspec>
    </disabled>
  </configuration>
  <configuration>
    <logicalmonitor>
      <x>5360</x>
      <y>0</y>
      <scale>1</scale>
      <monitor>
        <monitorspec>
          <connector>HDMI-0</connector>
          <vendor>BNQ</vendor>
          <product>BenQ GL2760</product>
          <serial>C3E02250019</serial>
        </monitorspec>
        <mode>
          <width>1920</width>
          <height>1080</height>
          <rate>60</rate>
        </mode>
      </monitor>
    </logicalmonitor>
    <logicalmonitor>
      <x>1920</x>
      <y>0</y>
      <scale>1</scale>
      <monitor>
        <monitorspec>
          <connector>DP-2</connector>
          <vendor>GSM</vendor>
          <product>LG HDR WQHD</product>
          <serial>0x00084810</serial>
        </monitorspec>
        <mode>
          <width>3440</width>
          <height>1440</height>
          <rate>59.972618103027344</rate>
        </mode>
      </monitor>
    </logicalmonitor>
    <logicalmonitor>
      <x>0</x>
      <y>0</y>
      <scale>1</scale>
      <primary>yes</primary>
      <monitor>
        <monitorspec>
          <connector>eDP-1-1</connector>
          <vendor>CMN</vendor>
          <product>0x1602</product>
          <serial>0x00000000</serial>
        </monitorspec>
        <mode>
          <width>1920</width>
          <height>1080</height>
          <rate>144.00343322753906</rate>
        </mode>
      </monitor>
    </logicalmonitor>
  </configuration>
  <configuration>
    <logicalmonitor>
      <x>1920</x>
      <y>0</y>
      <scale>1</scale>
      <monitor>
        <monitorspec>
          <connector>DP-2</connector>
          <vendor>GSM</vendor>
          <product>LG HDR WQHD</product>
          <serial>0x00084810</serial>
        </monitorspec>
        <mode>
          <width>3440</width>
          <height>1440</height>
          <rate>59.972618103027344</rate>
        </mode>
      </monitor>
    </logicalmonitor>
    <logicalmonitor>
      <x>0</x>
      <y>0</y>
      <scale>1</scale>
      <primary>yes</primary>
      <monitor>
        <monitorspec>
          <connector>eDP-1-1</connector>
          <vendor>CMN</vendor>
          <product>0x1602</product>
          <serial>0x00000000</serial>
        </monitorspec>
        <mode>
          <width>1920</width>
          <height>1080</height>
          <rate>144.00343322753906</rate>
        </mode>
      </monitor>
    </logicalmonitor>
  </configuration>
</monitors>