Half resolution for monitor in PBP mode

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1

Ubuntu Version: 24.10

Desktop Environment (if applicable): default Wayland

Problem Description: I have my computer plugged into my monitor which is setup with PBP (Picture By Picture mode). How can i get it to the correct resolution to match half of the monitor? I want to be able to set my resolution to 1920x2160

Relevant System Information:

sudo lshw -C display
lsb_release -a
uname -a
xrandr

Gives the output:

  *-display                 
       description: VGA compatible controller
       product: AlderLake-S GT1
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       logical name: /dev/fb0
       version: 0c
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb
       configuration: depth=32 driver=i915 latency=0 mode=3840x2160 resolution=3840,2160 visual=truecolor xres=3840 yres=2160
       resources: iomemory:600-5ff iomemory:400-3ff irq:173 memory:6001000000-6001ffffff memory:4000000000-400fffffff ioport:5000(size=64) memory:c0000-dffff memory:4010000000-4016ffffff memory:4020000000-40ffffffff
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 24.10
Release:	24.10
Codename:	oracular
Linux giles-ubuntu 6.11.0-14-generic #15-Ubuntu SMP PREEMPT_DYNAMIC Fri Jan 10 23:48:25 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Screen 0: minimum 16 x 16, current 1280 x 1024, maximum 32767 x 32767
HDMI-3 connected primary 1280x1024+0+0 (normal left inverted right x axis y axis) 700mm x 390mm
   1280x1024     74.90*+
   1280x960      74.86  
   1152x864      74.82  
   1024x768      74.90  
   800x600       74.91  
   640x480       74.77  
   320x240       73.82  
   1280x800      74.93  
   1152x720      74.72  
   960x600       74.84  
   928x580       74.58  
   800x500       74.87  
   768x480       74.71  
   720x480       74.51  
   640x400       74.23  
   320x200       73.70  
   1280x720      74.78  
   1024x576      74.80  
   864x486       74.45  
   720x400       74.89  
   640x350       74.53
2

I have tried using a GPU rather than the onboard graphics but still not obvious
new output

sudo lshw -C display
lsb_release -a
uname -a
xrandr
[sudo] password for giles: 
  *-display                 
       description: VGA compatible controller
       product: DG2 [Arc A750]
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: /dev/fb0
       version: 08
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb
       configuration: depth=32 driver=i915 latency=0 resolution=3840,2160
       resources: iomemory:600-5ff irq:176 memory:41000000-41ffffff memory:6000000000-61ffffffff memory:42000000-421fffff
  *-display
       description: Display controller
       product: AlderLake-S GT1
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 0c
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm bus_master cap_list
       configuration: driver=i915 latency=0
       resources: iomemory:620-61f iomemory:400-3ff irq:174 memory:6202000000-6202ffffff memory:4000000000-400fffffff ioport:5000(size=64) memory:4010000000-4016ffffff memory:4020000000-40ffffffff
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 24.10
Release:	24.10
Codename:	oracular
Linux giles-ubuntu 6.11.0-14-generic #15-Ubuntu SMP PREEMPT_DYNAMIC Fri Jan 10 23:48:25 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Screen 0: minimum 16 x 16, current 3840 x 2160, maximum 32767 x 32767
DP-3 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 700mm x 390mm
   3840x2160     59.98*+
   2048x1536     59.95  
   1920x1440     59.97  
   1600x1200     59.87  
   1440x1080     59.99  
   1400x1050     59.98  
   1280x1024     59.89  
   1280x960      59.94  
   1152x864      59.96  
   1024x768      59.92  
   800x600       59.86  
   640x480       59.38  
   320x240       59.52  
   2560x1600     59.99  
   1920x1200     59.88  
   1680x1050     59.95  
   1440x900      59.89  
   1280x800      59.81  
   1152x720      59.97  
   960x600       59.63  
   928x580       59.88  
   800x500       59.50  
   768x480       59.90  
   720x480       59.71  
   640x400       59.95  
   320x200       58.96  
   3200x1800     59.96  
   2880x1620     59.96  
   2560x1440     59.96  
   2048x1152     59.90  
   1920x1080     59.96  
   1600x900      59.95  
   1368x768      59.88  
   1280x720      59.86  
   1024x576      59.90  
   864x486       59.92  
   720x400       59.55  
   640x350       59.77  
  1920x2160R (0x502) 277.000MHz +HSync -VSync
        h: width  1920 start 1968 end 2000 total 2080 skew    0 clock 133.17KHz
        v: height 2160 start 2163 end 2173 total 2222           clock  59.93Hz
3

This is being outputted at the bottom, so is there some sort of knowledge that it exists? How can I select it? or enable it?
Ive checked through the screen display resolution drop down and the only resolution that starts 1920 is the standard 1920x1080

4

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