[SOLVED] The Fix for AMD Ryzen Hibernate Freezes on KDE Plasma 6, Wayland/Xlibre

Tips and Tricks
1

The Problem:
On many AMD Ryzen mobile systems (like my 4700U), hibernation intermittently freezes. Logs show a recurring hardware/firmware stumble:

amdgpu: suspend of IP block <psp> failed -22

Standard KDE hibernation fails because the desktop environment’s “graceful” power-down sequence deadlocks when it hits this error.
I tried on both wayland and xlibre.
The kde hibernate button works.
The manual command also works:

loginctl hibernate

Somehow, hibernate via the power management freezes the GUI while all background services work and even running applications are still responsive (WhatsApp sounds notifications).

The Fix:
Instead of using KDE’s broken internal hibernate logic, configured KDE to run the raw system command directly when idle.

  1. KDE Plasma 6 Configuration:

    • System Settings > Power Management.

    • Set “When inactive” to Do nothing for all profiles (AC/Battery/ On Low Battery). This prevents KDE from messing up.

    • In Other Settings in “Run command or script” drop down select “Choose run conditions”.

    • In When inactive set your desired idle time.

    • In the command input box, simply enter:

      /usr/bin/loginctl hibernate

Why it works:
This bypasses the “polite” but fragile PowerDevil/KWin handshake. loginctl issues a direct order to the kernel. While the kernel still logs the PSP -22 error, it is resilient enough to ignore the stumble and complete the hibernation anyway.

2

this is pretty much how i’ve been doing it

i have a script that calls the sudo systemctl suspend-then-hibernate command

and i’ve had to add myself as a sudoer so can run the sudo command without a prompt for the password.

the manpage for loginctl on my distro does not have the hibernate command… maybe that’s a plasma 6 thing, i’m still on plasma 5