https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=271995
Bug ID: 271995
Summary: Graphics performance suffers after S3 suspend/resume
Product: Base System
Version: 13.2-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: misc
Assignee: [email protected]
Reporter: [email protected]
I am testing this by running some 2D/3D graphical apps, and they all seem to
behave the same.
Reproducing on Thinkpad T480. Right after booting, I get good performance from
those apps and htop readings are not out of the ordinary.
After S3 suspend and resume, things get different. Applications show much lower
performance, some becoming unusable, and htop shows up to 800% CPU usage.
I'm running dwm on X11 modesetting with latest drm-kmod installed from ports.
Tried resetting Xorg / powerd after resuming, but didn't help.
/var/log/messages and /var/log/Xorg.0.log show no new errors after resuming.
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