3D modeling software (Blender, Maya, CAD)
Emulators (RetroArch, Dolphin, PCSX2)
VR/AR headsets
In some gaming or simulation tools, a faulty mode refresh can cause input event queues to merge. After toggling between modes several times, the delay between mouse movement and on-screen cursor movement becomes noticeable (from 16ms to over 100ms).
The security patch (firmware version 2.x.x and above) modifies the request handler in the web server binary (typically httpd or lighttpd). viewerframe mode refresh patched
The unfixed version of this issue—before the patch—manifests in several irritating ways. Users and developers reported symptoms such as:
A robust patch implements atomic reference counting for each frame buffer. When a mode refresh is triggered, the system waits for all references to the old buffers to reach zero before allocating new ones. 3D modeling software (Blender, Maya, CAD)
The viewerframe might retain the resolution scaling from a previous mode. For instance, moving from Thumbnail Mode (320x240) back to Live Mode (1920x1080) results in a squashed or stretched image until a manual resize event forces a correction.