[Qt] Lazarus running slow on KDE 4.6.2

Steven Feinstein stevefeinstein at yahoo.com
Sat Apr 9 03:25:14 CEST 2011


I use PCLinuxOS.  Up to date with:
QT: 4.7.2
KDE: 4.6.2

I run Lazarus from the latest SVN build.  In my case it is 30245.

Just recently (builds for the last few weeks), I've run into a problem.  Lazarus runs extremely slowly if I build using OPT="-dQT_NATIVE_DIALOGS" LCL_PLATFORM=qt.  Using top, X jumps to 70-90% whenever I try to do something in the IDE related to the UI.  If I do not use components (say a console application) the IDE runs fine.

I recompiled using GTK and the IDE runs fine as well.  I played around with desktop Styles.  If I use the Oxygen theme (which I do), it is terrible.  X jumps to 70-90%.  Which makes Lazarus unusable.  If I change to Plastique, X jumps only to 40-50%.  Which makes Lazarus mostly usable but slow.

GTK, X jumps 10-15% at most.

I posted on the Lazarus forum and no one else seemed to have this issue.  They suggested posting here.

Hopefully someone will have an idea of what setting might be messing me up.

Thanks,

Steve




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