Fix for second monitor with blank screen (Ubuntu 20.04 - HP Pavilion Gaming Laptop 15-ec1xxx, Nvidia GTX 1650, Ryzen 5 4600H)

fix_black_screen_on_second_monitor.patch

diff --git a/10-amdgpu.conf b/10-amdgpu.conf
index ef20256..c86f77a 100644
--- a/10-amdgpu.conf
+++ b/10-amdgpu.conf
@@ -1,5 +1,5 @@
 Section "OutputClass"
 	Identifier "AMDgpu"
 	MatchDriver "amdgpu"
-	Driver "amdgpu"
+	Driver "modesetting"
 EndSection
diff --git a/10-nvidia.conf b/10-nvidia.conf
index d0869bc..f214034 100644
--- a/10-nvidia.conf
+++ b/10-nvidia.conf
@@ -3,7 +3,6 @@ Section "OutputClass"
     MatchDriver "nvidia-drm"
     Driver "nvidia"
     Option "AllowEmptyInitialConfiguration"
+    Option "PrimaryGPU" "Yes"
     ModulePath "/usr/lib/x86_64-linux-gnu/nvidia/xorg"
 EndSection
 

Source: https://askubuntu.com/a/1283964/1023372

• /usr/share/X11/xorg.conf.d/10-amdgpu.conf
• /usr/share/X11/xorg.conf.d/10-nvidia.conf

Does this code also applies to when the hdmi output on the tv shows a white screen which covers the monitor display? if yes how do I execute the code, if no please could you offer any ideas on how to fix it?

Does this code also applies to when the hdmi output on the tv shows a white screen which covers the monitor display? if yes how do I execute the code, if no please could you offer any ideas on how to fix it?

I don't have an answer to that problem, as I haven't experienced it, you might want to test it by yourself. You can try it by editing the following files (creating a backup before just in case), making the changes suggested in the gist, and then rebooting the system. (Under your own responsibility ofc).

• /usr/share/X11/xorg.conf.d/10-amdgpu.conf
• /usr/share/X11/xorg.conf.d/10-nvidia.conf