Thomas Coffee wrote: > I have experienced unbearably sluggish scrolling and typing in LyX that > after much research I attribute to a poor interaction between Qt 4 and my > NVIDIA graphics card driver. > > I solved these issues by starting LyX with: > > lyx -graphicssystem raster
I haven't heard about this workaround but it makes lot of sense. Many of slugish reports seems to be related to X<->drivers traffic. To check whether this is your case then try to scroll and look via e.g. top on the usage of your CPU - if X is taking 80-90% and LyX 10-20% then you have probably this kind of problem. Pavel