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Installation Kernel & Hardware Networks Portage Software System X Server Gaming Non-x86 Emulators Misc


Since I encoutered several problems in configuring my xserver, I created this, my how-to, so I can share my knowledge :D

Linux Kernel Configuration: for ATI
General Setup
    [*] Configure standard kernel features (for small features)

Processor type and features  ---> Processor family (AMD-Opteron/Athlon64)
    [ ] IOMMU support

Device Drivers ---> Character devices  --->
    <M> /dev/agpgart (AGP Support)
    <M>   AMD Opteron/Athlon64 on-CPU GART support
You will be able to select /dev/agpgart after having set up your Processor family.
Code: Install ati-drivers
emerge ati-drivers
File: Add to /etc/modules.autoload.d/kernel-2.6
Code: Execute update-modules
Warning: aticonfig "parses an existing X-Server configuration file and modifies it to operate wit ATI products", so if you haven't run it at least once it will fail. Try to run X with vesa drivers, execute Xorg -configure to create /root/ and copy it to /etc/X11/xorg.conf
Code: aticonfig
/opt/ati/bin/aticonfig --initial
ddcxinfo-knoppix -monitor
and remember the vsync and hsync values
Do you want to use the external AGP GART module?
Do not use the default answer there but answer YES. In other words... Your xorg.config must have this value:
    Option "UseInternalAGPGART"         "no"
Code: Run eselect opengl
eselect opengl set ati

// when you get a blank screen and the system hangs after startx try to disable SMP in your kernel (it's for handling more than one cpu that you don't need on a desktop pc, for it will slower your performance when only one cpu is installed in your motherboard. I don't know why its turned on by default...) it worked for me ;)

After a week of work I have had success with TurionX2 & ATI 200M in 64bit mode (acer ferrari 1000). I did the following: 1) use gcc 3.4.6 (/etc/portage/package.mask: >=sys-devel/gcc-4.0) 2) use the very lastest xorg (7.1.1),ati-drivers(8.28.8),mesa from the stable branch. I first updated ati-drivers, then xorg-x11, then ati-drivers, then mesa. Now I get from glxinfo: ... direct rendering: Yes server glx vendor string: SGI server glx version string: 1.2 ... OpenGL vendor string: ATI Technologies Inc. OpenGL renderer string: RADEON XPRESS Series Generic OpenGL version string: 2.0.6011 (8.28.8) OpenGL extensions: ...very many extensions.

glxgears works fine, too: 3989 frames in 5.0 seconds = 797.732 FPS 3996 frames in 5.0 seconds = 799.159 FPS 4191 frames in 5.0 seconds = 838.167 FPS

If your XOrg log contains

(EE) AIGLX error: dlsym for __driCreateNewScreen_20050727 failed (/usr/lib64/dri/ undefined symbol: __driCreateNewScreen_20050727)
(EE) AIGLX: reverting to software rendering

this is because you are using the newer xorg server. Disable AIGLX for now:

  Section "ServerFlags"
      Option  "AIGLX" "off"
  Section "Extensions"
      Option "Composite" "Disable"

I would like to make a better contribution to this howto, but I fear I could destroy my setup by making experiments. But if you want to ask questions about what versions of what programs I have installed, please write to johannes dot gajdosik at gmx dot at

See Also

If you have kernel 2.6.19 : You need to remove the "if embedded" part from the IOMMU line in /usr/src/linux/arch/x86_64/Kconfig

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Last modified: Fri, 29 Aug 2008 04:02:00 +0000 Hits: 23,192