I upgraded from Ubuntu 22.10 to 23.04, which took me to Plasma 5.27. After that upgrade my formerly smooth window transitions, desktop switching, Expose-like animations, etc. all got choppy. This choppiness extends to my Linux VMs, which were also formerly smoothly animating.
As best I can tell, OpenGL and the proper Intel driver are being used.
$ qdbus org.kde.KWin /KWin supportInformation | grep -i intel
OpenGL vendor string: Intel
OpenGL renderer string: Mesa Intel(R) UHD Graphics 770 (ADL-S GT1)
Driver: Intel
I don’t notice in applications this same choppiness. For instance, scrolling in Firefox is fine, 4k videos play fine with intel_gpu_top showing some GPU utilization. In VMs, however, everything is slower. This might just be related to how VirtualBox does things.
Any suggestions on what I could try here? Thanks!