Oh, you too? I disabled it a few days ago because it kept happening and I'd get not video output. Nothing logged.
I have similar specs, RX 5700 XT, AMD 7950x. Also Arch and KDE (though I don't know the versions offhand but I updated a few days ago).
this post was submitted on 06 Jul 2023
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Nothing logged.
I have the exact same issue. I've never been able to see any errors in the logs. Essentially just says "going to sleep" then that's it.
My suspicion is that a kernel update broke it and that downgrading to LTS (or even an older LTS) kernel would fix it. I didn't bother to troubleshoot further because I don't need suspend that badly (desktop).
Unfortunately, I am unable to downgrade to LTS. I need the latest kernel version for a my WiFi card (I've had a ton of annoying driver issues with this specific card that seem to now be fixed in the latest few kernel updates).
Using Nvidia with closed source drivers by chance? I had a similar issue and had to disable the services related to nvidia suspend/hibernate/resume:
systemctl disable nvidia-suspend nvidia-hibernate nvidia-resume
This is all I can think of, some hardware specs might help others with assisting you.
Using Nvidia with closed source drivers by chance?
No, I have an AMD GPU.
some hardware specs might help others with assisting you.
Noted! I'll update the post.
I had the same issue running fedora kinoite on an old laptop with integrated Radeon graphics. Scrambled video when waking from suspend, and even if it does start to look normal its still pretty much frozen.