From kde-devel  Tue Jul 15 18:33:09 2008
From: Erik de Groot <edg72 () home ! nl>
Date: Tue, 15 Jul 2008 18:33:09 +0000
To: kde-devel
Subject: Re: KDE4 and the nvidia driver
Message-Id: <200807152033.09226.edg72 () home ! nl>
X-MARC-Message: https://marc.info/?l=kde-devel&m=121614688405294

Hi,

I managed to get the 177.xx driver to work with my xorg-server. I tried to set 
the GlyphCache to 1, but I had the feeling that the results were actually 
worse than with GlyphCache on 0.

I will try to run Zack's benchmark 
(http://people.freedesktop.org/~zack/xrenderbenchmark.tar.bz2) with GlyphCache 
enabled and disabled and see what it has to say.

Erik

On Saturday 12 July 2008 23:51:14 Michael Leupold wrote:
> Hi there,
>
> so far I've been reluctant to use KDE4 as my main desktop because the
> performance was pretty sloppy due to my nvidia 8600 GTS. Fortunately I've
> stumbled on some instructions on how to improve performance using those
> cards [1]:
> 1) Install the latest nvidia beta driver (currently 177.13)
> 2) Set the following options:
> $ nvidia-settings -a InitialPixmapPlacement=2 -a GlyphCache=1
>
> (Hint: some users reported it worked with InitialPixmapPlacement=1 for
> them)
>
> This worked really well for me (plasma really responsive), so I thought I'd
> share it. The settings only stay as long as you don't restart your xserver
> but you can make them permanent by putting them into your xorg.conf:
> -----------------
> Section "Device"
>    ...
>    Option "InitialPixmapPlacement" "2"
>    Option "GlyphCache" "1"
>    ...
> EndSection "Device"
> -----------------
>
> To make kwin work well with those new settings I had to adjust
> Settings->Desktop->D. Effects / Advanced Options to:
> - Compositing type: OpenGL
> - OpenGL mode: Shared Memory
>
> I'd like to put together some information on how that works out with
> different cards, so if you'd like to share your experience, please visit
> the techbase page I set up: http://techbase.kde.org/User:Lemma/KDE4-NVIDIA
> (or just reply).
>
> Regards,
> Michael
>
> [1] http://www.nvnews.net/vbulletin/showthread.php?t=115916
>
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