Created attachment 159212 [details]
Screenshot - screen configuration

SUMMARY
When returning from "suspend", the monitors do not turn on or return with low resolution (640x480). Wayland does not allow changing resolution (attachment).
I have two HP V206hz monitors that have a maximum resolution of 1600x900x60hz and are connected to a Radeon RX 6600 via cable (displayport > DVI).

NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
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STEPS TO REPRODUCE
1. Manually suspend the computer.
2. Wait for the suspension process to finish (front panel LED flashes).
3. Press any key to wake up the computer.

OBSERVED RESULT
Screens go black after manual suspend.
One of the screens returns with 640x480 resolution after returning from automatic suspend (when automatic splint shutdown is not active).
If the screen turns off automatically (before automatic suspend) the monitor video returns with adequate resolution (1600x900)

EXPECTED RESULT
Screens turn on after computer resumes from sleep.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
    OS: Kubuntu 22.04.2 LTS x86_64
    Kernel: 5.19.0-42-generic
KDE Plasma Version: 5.24.7
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3

ADDITIONAL INFORMATION
To view any content, you must force restart with the power button or remove and reinsert the monitor cable.
I installed the amd package for the gpu but the problem remained.
https://www.amd.com/en/support/graphics/amd-radeon-6000-series/amd-radeon-6600-series/amd-radeon-rx-6600