Very weird bug I found. Initially i was on kubuntu 10.10 with kde 4.5.x and i realized that animations throughout kde stunk. For example, the kickoff menu would raise and lower very jerky. So thinking this was a kubuntu or even a kde 4.5.x problem, I made a switch to opensuse 11.3 and kde 4.4.x. After install i noticed that all animations, including the menu raising and lowering, where very smooth and crisp (like they should be). I later realized I wasn't even using all my hardware's power so I put my two gtx 460s in SLI=auto. After a reboot I realized that once again all animations got jerky again . This leads me to believe,and for good reason, that kde's visual performance is degraded with SLI enabled. Anyone have any thoughts, suggestions, or similar observations???

Dan Schneider

Just want to add, when effects are set to "fast" animations seem slightly smoother. This makes me this this has something to do with how the windows are being drawn and definitely not a gpu performance issuse

This is likely an issue with the implementation of SLI in NVidia's graphics driver. Are other non-opengl applications affected by this as well?