==========================================

First of all I could not get the Tecra to boot from the CD images of RedHat
7.3 I downloaded, so I put the contents of the CD's onto a remote server
with enough space so I could put the floppy drive into the laptop and used
the bootnet image (for installation via ftp) on the floppy disk to get it
all going. Installation via this method only allows for a text based
install. During the install it is very hard to go far wrong except of
course for configuring the video.

RedHat 7.3 comes with XFree86 4.2.0. Redhat 7.2 comes with 4.1.0 and to the
best of my knowledge the below will apply to 4.1.0 as well, but I haven't
tested it. As a part of the installation you will enter the Xconfigurator,
which will autodetect the Trident Cyberblade chipset. What you select from
here on doesn't really matter because my advice is to replace your
/etc/X11/XF86Config-4 file that the configurator generates with the one
below. If you are not using a gigahertz laptop with 1400x1050 native
display then omit the line which states:

Option "Display1400"

which is found under the "Devices" section.

Here are the contents of the XF86Config file:

-----------------------------------------------------

Section "Files"
FontPath "unix/:7100"
EndSection

# Module loading section

Section "Module"
Load "dbe" # Double-buffering
Load "GLcore" # OpenGL support
Load "dri" # Direct rendering infrastructure
Load "glx" # OpenGL X protocol interface
Load "extmod" # Misc. required extensions
Load "v4l" # Video4Linux
# Load "record" # X event recorder
# You only need the following two modules if you do not use xfs.
# Load "freetype" # TrueType font handler
# Load "type1" # Adobe Type 1 font handler
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Driver "keyboard"
Option "XkbLayout" "gb"
EndSection

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Device" "/dev/psaux"
Option "Protocol" "PS/2"
Option "Emulate3Buttons" "yes"
Option "ZAxisMapping" "4 5"
EndSection

Section "Monitor"
Identifier "My Monitor"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 31.5 - 84.3
VertRefresh 50-100
Option "dpms"
EndSection

Section "Device"
Identifier "Trident CyberBladeXP"
Driver "trident"
BoardName "Unknown"
Option "Display1400"
EndSection

Section "Device"
Identifier "Linux Frame Buffer"
Driver "fbdev"
BoardName "Unknown"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Trident CyberBladeXP"
Monitor "My Monitor"
DefaultDepth 16
Subsection "Display"
Depth 16
Modes "1400x1050" "1280x1024"
EndSubSection
EndSection

Section "DRI"
Mode 0666
EndSection

---------------------------------------------------------

I'm not 100% certain on how everything works in here, but you may want to
change the keyboard layout depending on your keyboard locale.

There is a drawback though. There is a known bug whereby just under half a
centimeter of the left side of the screen will be chopped off and place on
the right side of the screen. Other than looking a little bit funny I have
had no other problems with this. The bug will apparently be fixed in the
future, but Xfree86 4.2.0 isn't too old at the time of writing (9th May
2002) so I'm not going to hold my breath!

Have fun and check out the http://www.xfree86.org/4.2.0/trident4.html page
for other specfic driver options that can be included in the Device
section.

========================================================

Thanks!