Unreliable dual monitor display problems both with restarting and during sessions

Hello,

I am relatively new to Manjaro and the entirety of Linux, I have been having a lot of problems maintaining my dual-screen setup and I cannot seem to reliably get it to work with KDE. I have 2x1440p @ 165hz Monitors in a configuration with my secondary monitor to the left and my main monitor in front. They are both connected via DisplayPort 1.2 cables on both ends with my RTX 3080 Ti

When restarting/turning on my system and booting into Manjaro only my main monitor seems to display an output. However, when running “xrandr” it outputs the following :

Screen 0: minimum 8 x 8, current 5120 x 1440, maximum 32767 x 32767
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-0 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
   2560x1440     59.94 + 164.83*  120.00  
   3840x2160     59.94    29.97  
   1920x1080    164.89   119.88   100.00    60.00    59.94    50.00  
   1680x1050     59.95  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x720     119.88   100.00    59.94    50.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94  
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 connected primary 2560x1440+2560+0 (normal left inverted right x axis y axis) 597mm x 336mm
   2560x1440     59.94 + 164.83*  120.00  
   3840x2160     59.94    29.97  
   1920x1080    164.89   119.88   100.00    60.00    59.94    50.00  
   1680x1050     59.95  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x720     119.88   100.00    59.94    50.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94  
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)

On top of this, when logging into manjaro sometimes my monitors will flash and then only my secondary monitor will show! (This is what has happened at time of me writing this)

I have found that if I switch to TTY switch to root user and then run “startx” I log in as root with both screens working, obviously without my setup etc…

I have tried following these steps:
https://forum.manjaro.org/t/panel-not-remembering-settings-after-reboot-screen-edges-not-working/111666/7?u=david021
Where after following those commands and rebooting nothing changed.

https://www.youtube.com/watch?v=S25XTiG4oRc&t=298s
I also followed this tutorial and after following the steps neither of my monitors would display on a reboot and I had to remove the modifications using TTY

https://forum.manjaro.org/t/screen-settings-disappear-after-reboot/114432/15
This made no difference

Along with doing a complete reinstall of linux which seemed to have no effect.


Earlier today I had both my monitors working fine, where both were displaying everything correctly and I thought the issue had been resolved by itself however after having lunch and coming back to my machine only my secondary monitor was displaying an image. Any help would be appreciated thank you.

I tried to post images in the chat of the various problems I am having but it said media is not allowed, if I can share content somehow please let me know and I would happily link it if needed

System Specs:

GPU: RTX 3080 Ti
CPU: Ryzen 5950x
RAM: 128GB DDR4

Monitors: 2x MSI Optix G273QF Esports Gaming IPS Monitor

Running xrandr --output DP-0 --auto --right-of DP-2 will sometimes work but other times wouldn’t have any effect.

I am struggling to create a consistent way of reliably creating the same result however at the moment when I restart my computer it will show my main monitor with the login page, when logging in as myself it will show my secondary monitor and not my primary.

When switching to TTY it shows the terminal on both displays

Any help or guidance would be very appreciated. Thank you