[Qt] Lazarus running slow on KDE 4.6.2

[zeljko]

On Saturday 09 of April 2011 16:17:46 Steven Feinstein wrote:
> I have an ATI Radeon.  Running with Windows style is better than plastique
> and oxygen, but very ugly.  Plastique is usable at least.  But strange
> behavior.  Apps I build using QT do not seem to have any X problems when
> they run.  They never exceed 15% in top.  It's just Lazarus itself.

What driver do you use ? fglrx or radeon ?
Try this and give feedback please (just comment UpdateMouseHint in 
Application.Idle):
Index: lcl/include/application.inc
===================================================================
--- lcl/include/application.inc	(revision 28265)
+++ lcl/include/application.inc	(working copy)
@@ -365,7 +365,7 @@
 begin
   ReleaseComponents;
   ProcessAsyncCallQueue;
-  UpdateMouseHint(GetControlAtMouse);
+  // UpdateMouseHint(GetControlAtMouse);
 
   Done := True;
   if (FIdleLockCount=0) then begin


zeljko





> 
> --- On Sat, 4/9/11, zeljko <zeljko at holobit.net> wrote:
> > From: zeljko <zeljko at holobit.net>
> > Subject: Re: [Qt] Lazarus running slow on KDE 4.6.2
> > To: "Items specific to the Qt widget set"
> > <qt at lists.lazarus.freepascal.org> Date: Saturday, April 9, 2011, 2:54 AM
> > On Saturday 09 of April 2011 03:25:14
> > 
> > Steven Feinstein wrote:
> > > 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.
> > 
> > I have no idea why it is so ... it runs fine here,
> > qt-4.7.2, KDE-4.6.2 (Fedora
> > 14 32 bit)+ remote X lazarus with qt-4.6.3 on KDE-3.5
> > (Fedora 3) runs fine
> > also. Oxygen can slow down things, but it's weird that
> > plastique is doing the
> > same.
> > You can try to start lazarus from console with windows
> > style and see if it's
> > better, eg.
> > cd /to/your/lazarus/dir
> > ./lazarus -style windows
> > 
> > What's your graphic card and driver ? Qt have problems with
> > nvidia cards
> > sometimes, but also I've seen problems with intel cards in
> > combination with
> > old intel drivers. If it's so, try vesa graphic driver and
> > see if it's still
> > slow.
> > 
> > zeljko
> > 
> > _______________________________________________
> > Qt mailing list
> > Qt at lists.lazarus.freepascal.org
> > http://lists.lazarus.freepascal.org/mailman/listinfo/qt
> 
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