TITLE: GLX setup on XF402 LFS VERSION: any AUTHOR: manaveru SYNOPSIS: Generic instructions on how to setup GLX on Xfree 40[1-2], based on my experience with Nvidia cards. HINT: (Ed. note: There is also a nice mini-HOWTO on this subject which you can find on linuxdoc.org) Required stuff: =============== First, you need a kernel with AGP support. There are available patches for 2.2 kernels, but I really recommand 2.4 kernels for 3D. Read the Kernel2.4 hint for instructions on the upgrade. The AGP support is in Char devices (agpgart), select to build it as a module and choose your motherboard chipset in the list. Don't select any DRI option. You need Xfree 4.0.1+ built and running. Then, you have to download the Nvidia GLX modules on www.nvidia.com/drivers. You need the following files: - NVIDIA_kernel-0.9-6.tar.gz - NVIDIA_GLX-0.9-6.tar.gz Installation: ============= Unpack the NVIDIA-kernel file and enter the created directory. # make This will produce a module called NVdriver. Copy it to the appropriate kernel modules directory (the same as agpgart). # cp NVdriver /lib/modules/2.4.1/drivers/char/agp Add the device in /etc/modules.conf and refresh the modules dependencies. # echo alias char-major-195 NVdriver >> /etc/modules.conf # depmod -a Unpack the NVIDIA-GLX file and enter the created directory. # make This will install the Nvidia drivers in the correct locations. Setup: ====== You will now edit the XF86Config file to use the new drivers. I'll just show the things to add/modify or verify # vi /etc/X11/XF86Config Section "Module" Load "glx" # add if it's not there .... EndSection Section "Device" Driver "nv" # remove/comment that line Driver "nvidia" # add this line .... EndSection Tests: ====== Restart X. If X restarts properly, first step is OK. If not, head to troubleshooting section. Launch Q3, UT or any other GLX compliant game. If you have low performances (2-3 FPS), head to troubleshooting. If performances are OK, you now have 3D accel on Linux. Additionnaly, you may want to test glspec (you can find it on freshmeat.net) Troubleshooting: ================ Problem: X locks at startup Solution: you'll need to edit os-registry.c, and check the comments near lines that start like #if 0. Problem: 3D acceleration not working. Solution: You have some mesa libs laying around in /usr/lib. Remove the following files /usr/lib/libMesa* /usr/X11R6/lib/libMesa* and reinstall GLX module. If you have 3D apps that require Mesa libs, you can simply create symlinks to GLX lib (libGL.so.1). You also need to remove /usr/X11R6/lib/libGL.so.1.2 and symlink it to /usr/lib/libGL.so.