Users of the Wii-Linux project might want to take a look at this new release from dev nuvalo. It's an initial solution to the errors with the XF86 video driver, and now supports 640x480-16boo screen config.

From nuvalo:

Hello

Finally i was able to solve some errors with the xf86 driver for wii-linux. As some of the people that show my videos about t2-sde noticed, we have a problem with the fbdev: It only supports YUV2 colours, and the xserver draws in RGB. That means that the only usable driver (fbdev) works, but shows strange colours.

Here is an initial solution for that problem. This driver implements only the basics for the xserver to work with correct colours. It doesn't implements extensions like GLX, or Xvideo (maybe in a future...). This work is based on the Xf86 glide driver, and has parts taken from SDL-gclinux lib, fbdev xf86 driver and glide xf86 driver compatible with gc/wii-linux. The attached file includes the sources to build an xfree86 yuv2 framebuffer driver, and the driver ready to use.

This driver supports:
- 640x480-16bpp screen configuration

This driver lacks:
- Other screen configurations...
- Xvideo, XGL, and any other X extension...
- Problems in PAL consoles: As pal draws in 640x576, you will see a green line in the bottom of the screen. To solve, put the video mode in 480i/p/60Hz.

How to install:
- You need an already installed xorg-server enviroment. Download the attached file and copy the contents inside the "libs" directory (cube_drv.so, cube_drv.la) to the xserver drivers directory ("/usr/local/lib/xorg/modules/drivers", "/usr/lib/xorg/modules/drivers" or "/usr/X11R7/lib/xorg/modules/drivers")

How to configure "/etc/X11/xorg.conf":

Edit the file "/etc/X11/xorg.conf" and add a new video section:
Code:

Section "Device"
Identifier "WII/Gc Card"
Driver "cube"
EndSection

Edit the module section, and leave it as this:

Code:

Section "Module"
Load "dbe"
Load "ddc"
SubSection "extmod"
# Option "omit xfree86-dga"
# Option "omit XFree86-VidModeExtension"
EndSubSection
Load "type1"
Load "freetype"
Load "dri"
EndSection

Edit the screen section, and replace the next options:
Code:

Section "Screen"
....
Device "WII/Gc Card"
....
DefaultDepth 16
Subsection "Display"
Modes "640x480"
EndSubsection

EndSection