XPS 1300 9300 Screen Goes Black when Power Cord Connected

This is caused by a problem with the default Dell HDR profile / power profile.  Dell has it set to "turn HDR ON when plugged in" & there is a long delay where the screen goes blank when switching to HDR that sometimes results in a permanant blank screen(depending on power settings) which can be alleviated by restarting while the power cable is plugged in or restarting when the power cable is not plugged in (but not changing between these two states).  (you may need to hold power button to hard reset, then choose restart now if the blue screen comes up after restarting)

After updating drivers for the display or using driver update utilities this fix may get reset.  (The driver fix for display flickering seems to add this other bug at least.)

I managed to overwrite this setting by doing the following:

1. Plug in your XPS13.
   • might need to hard restart while keeping the power cable plugged in if screen is blank.  Hold the power button to shutdown then wait a few seconds before turning it back on.  (hit restart now if the recovery screen comes up)
2. Display Settings > "use HDR" menu (do not disable yet) > battery options (expandable section not the dropdown) > turn ON "Allow HDR Games, videos, and apps on battery" (counterintuitive but you need to turn it on)
   • this might cause a blank screen until you restart.
   • see reference for how to expand this menu: (ignore my Use HDR toggle)
     
3. Display Settings > "use HDR" toggle set to OFF (toggle from the Display Settings menu itself, don't go deeper)
4. restart

• ensure settings are the same when plugged in & not plugged in (shouldn't need to change anything but some menu options might disapear if you are plugged in)
• check power plan settings for the active power plan at:  Control Panel\Hardware and Sound\Power Options\Edit Plan Settings
  • ensure you do not have extra HDR settings there (none should be present but disable them if they are available)
  • ensure display settings give it more than a minute before going to sleep.

Alternatively this setting can also be set directly deep within the old advanced menus or by editing the file directly & restarting.  Or you can set a different HDR profile to fix this issue as well.  (I can see these settings when inspecting this with PowerShell but can't find them in the simplified Windows 10/11 menus.)