By default, widescreen resolutions are not available with the `intel' driver after installation! The solution is change the `vga=0x317' option in the GRUB boot settings to `vga=normal' or just to leave the vga option blank. The effect of this change is nothing short of miraculous, the very next boot-up I had a widescreen 1280x768 widescreen login screen. This is before I changed any settings in SaX2! /var/log/Xorg.0.log shows that the Xorg driver auto-detects the available resolutions.
Dimensions of the LCD screen not auto-detected by YaST. It is 1280x768 8.9'' WXGA (16:10). 3D acceleration can be activated, apparantly only after changing the `vga' boot option as above. For what it is worth, GLXgears runs at about 500 fps when 3D acceleration is turned off, and around 700 fps when turned on. Peak glxgears speed when 3D acceleration is turned on was 1880 fps. Obviously, during my running of these tests, the system was busy with lots of other activities.
The actual screen traversal cannot be accurately set during installation in the SuSE installer. Even worse, trying to set a 16:10 screen during installation results in a distorted display (see installation notes). Screen traversal can be set via YaST -- Hardware -- Graphics Card and Monitor (SaX2) -- Monitor -- Monitor Settings (Change Monitor) -- Display Size (195 x 116 mm).