How to make persistent gamma configuration for the specific monitor using AMD GPU

Support Graphics & Display
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Hello there! Recently I have bought a new laptop (ZenBook UX325UA_UM325UA) and installed my favorite manjaro distro :). And I have a separate monitor connected to this laptop. Here is the output of the xrandr --query command:

Summary 
Screen 0: minimum 320 x 200, current 5760 x 2160, maximum 16384 x 16384
HDMI-A-0 connected 3840x2160+1920+0 (normal left inverted right x axis y axis) 697mm x 392mm
   3840x2160     60.00*+  50.00    59.94    30.00    25.00    24.00    29.97    23.98  
   2560x1440     59.95  
   1920x1200     60.00  
   1920x1080     60.00    50.00    59.94    30.00    24.00    29.97    23.98  
   1600x1200     60.00  
   1680x1050     59.88  
   1600x900      60.00  
   1280x1024     75.02    60.02  
   1440x900      59.90  
   1280x800      59.91  
   1152x864      75.00  
   1280x720      60.00    50.00    59.94  
   1024x768      75.03    70.07    60.00  
   832x624       74.55  
   800x600       72.19    75.00    60.32    56.25  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       75.00    72.81    66.67    60.00    59.94  
   720x400       70.08  
eDP connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 294mm x 165mm
   1920x1080     60.00*+
   1680x1050     60.00  
   1280x1024     60.00  
   1440x900      60.00  
   1280x800      60.00  
   1280x720      60.00  
   1024x768      60.00  
   800x600       60.00  
   640x480       60.00  
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-1 disconnected (normal left inverted right x axis y axis)

Now, I found out how to configure gamma for the specific monitor like this:

xrandr --current --output eDP --gamma 1.01:0.95:1.10

These are the settings I would love to apply but persistently, for example when I’m on the ssdm’s login screen, after logging into the system, back after hibernation etc. And to do so I tried many things, I went into the different config files like .xinitrc, .bashrc, /usr/share/sddm/scripts/Xsetup (and other its scripts), /etc/sddm.conf.d and more. I even tried to create such config file in the /etc/X11/xorg.conf.d directory:

 Section "Monitor"
    Identifier "eDP"
    Gamma "1.01 0.95 1.10"
EndSection

But for some reason after applying this config the system does not boot. Perhaps it might be connected with the driver I’m using? Here are some details if needed:

System:    Host: b0ysetsf1re-zenbookux325uaum325ua Kernel: 5.13.1-3-MANJARO x86_64 bits: 64 Desktop: KDE Plasma 5.22.3 
           Distro: Manjaro Linux 
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Lucienne driver: amdgpu v: kernel 
           Device-2: IMC Networks USB2.0 HD UVC WebCam type: USB driver: uvcvideo 
           Display: x11 server: X.Org 1.20.11 driver: loaded: amdgpu,ati unloaded: modesetting resolution: 1: 3840x2160~60Hz 
           2: 1920x1080~60Hz 
           OpenGL: renderer: AMD RENOIR (DRM 3.41.0 5.13.1-3-MANJARO LLVM 12.0.0) v: 4.6 Mesa 21.1.4

I don’t know what else to try and I need some help. Perhaps there is a better way to calibrate display than tweaking gamma settings? I know there are some ICC profiles and different software (like displaycal), which requires colorimeter, but I am not a photographer so I don’t need it, just to make some simple adjustments to the display and that’s it. I would be very grateful for any help. Let me know if any additional details needed.

Thanks!

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