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List:       kde-devel
Subject:    Re: KDE4 and the nvidia driver
From:       Thomas Holzmann <holzi1 () gmx ! at>
Date:       2008-07-13 17:21:32
Message-ID: 487A399C.9000104 () gmx ! at
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Pierre schrieb:
> 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.
>>     
> It does improve the performance a bit for me (GeForce 8600M GT), but that's 
> far from making the system usable.
> I often have some small X freezes, where nothing answers for a few seconds... 
>
>   
>> 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
>>     
> Well, this works if you're lucky enough to be able to enable desktop effects !
> Often, X freezes for at least 10 seconds when I enable them. That's enough for 
> the "timeout" and KWin decides to disable effects then...
>
>  
>   

I've also the GeForce 8600M GT, I've installed the newest driver and 
have applied your other proposed tweaks but unfortunately that did not 
lead to much better performance.

Maybe a little bit better, but not much...

BTW: Does anybody know if nvidia will release drivers in the near future 
that work well with my card? If not, I could send my notebook back to 
dell...

Regards,
Thomas
 
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