Talk:GPU-Performance

Would it make sense to remove all the old nvidia updates and provide a link to their "current drivers" page as well as their "if you have performance issues" page? that way this page would not always lag behind the up-to-date beta drivers.

Sounds reasonable. Feel free to do it :-) --annew 12:31, 8 January 2009 (UTC)

Hi there,

I just learned about this from the Fedora KDE mailing list tonight, and thought it'd be useful to note for other Fedora 10 KDE users that visit this page.

Here's a stab at contributing to this page (below):

Fedora 10 and xorg.conf (for some users)

Some of the tweaks mentioned in this article are targeted at a file normally found in most distros at:

 /etc/X11/xorg.conf

Some users on Fedora 10, however, may find that this file is no longer present by default (depending on their card- anyone with more details on this please feel free to elaborate), and so it must be re-created. To do this, either:

GUI-friendlier method:

install and run the 'system-config-display' package (hitting Ok after you're done configuring will generate the 'xorg.conf'

Less GUI-friendly method:

open a command prompt
switch to runlevel 1 by running the command (as root): init 1
run 'Xorg -configure' as root (once you're done, this will generate the 'xorg.conf' file

This section copied to main page. Please check, then remove the bulk of this (leave the title and this comment if you wish) when you are satisfied. --annew 11:42, 3 February 2009 (UTC)

nvidia - black window problem

(I suggest the following problem description to be inserted into the GPU-Performance page. Could a native english speaker correct the text, please, if required?)

It seems that _older_ nvidia cards run into the problem that newly opened windows just are drawn as black windows or do not refresh properly anymore. This happens if composite is activated and openGL is used with many windows opened. Maybe the cards are running out of video memory? (The problem does occur with the compiz window manager as well.) In KDE4 you can deactivate composite/effects with Shift+Alt+F12 to continue your work with the desktop normally.

The problem is that drawing of the window decorations does become very slow if now composite is activated (tested with KDE4.3). As alternative to using openGL as composite engine it is recommended to use XRender in this case. Because moving effects become very slow with XRender you should turn animation speed to instant.