[Bug 251572] New: Kmail editor extremly slow, xorg takes 50% from systemCPU

[schmirrwurst at free.fr]

https://bugs.kde.org/show_bug.cgi?id=251572

           Summary: Kmail editor extremly slow, xorg takes 50% from
                    systemCPU
           Product: kmail
           Version: 1.13.5
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: schmirrwurst at free.fr


Version:           1.13.5 (using KDE 4.5.1) 
OS:                Linux

Each time I'm writing a new email, the letters only appears after a small
delay, and all the system is pretty slow.
I checked the CPU, and I see that Xorg is taking 50%, when the editor is open,
since I've a dual core, I guess it is taking 100% from one core...
When I close kmail editor, then it goes back to 5%...

It is only since I've update kde...

Reproducible: Always




OS: Linux (x86_64) release 2.6.32-25-generic
Compiler: cc

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