Re: [gentoo-user] slow redrawing in KDE

[Richard Fish <bigfish@asmallpond.org>]

Jorge Almeida wrote:

> On Mon, 18 Jul 2005, Richard Fish wrote:
>
>> If so, possibly an error with themes or alpha blending...
>
> But why now?


Well, one of the things that has been happening in the xorg/qt/kde world 
is a move towards more eye-candy with transparency, drop shadows, and so 
on.  My guess is that this version of KDE is trying to use a new method 
of drawing things, that turns out to be slower than the old (or maybe 
more accurately, plain) method for your hardware.

You might take a walk through the KDE option menus and disable anything 
that says "drop shadows", "transparency", or most other eye-candy.

>>
>> Could you post the output "xdpyinfo"...I have a feeling the answer is 
>> going to be in there.
>
>
> $ xdpyinfo

<snip>

> number of extensions:    33
>     BIG-REQUESTS
>     Composite


Could you try disabling this.  From googling, it seems that something 
like the following in xorg.conf should do it:

Section "Extensions"
    Option "Composite" "Disable"
EndSection

Everything else looks sane.

-Richard

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