this request does not strictly refer to XFree, but it refers to video display handling - if you consider it off-topic, please tell me where to turn to.
I am using a PC dating from 1997 (Pentium, 133 MHz, with an ATI Mach64 graphic card) connected to a TFT display (Philips Brilliance 150P), so the video output needs to meet one of the monitor's supported combinations of resolution and frequency. It has a multiple-boot configuration for Linux (still SuSE 7.2) and Windows95, both set at 1024*768 pixels, 60 Hz.
Now I bought a current machine (AMD Athlon 2.400+ with a Point of View card using a GeForce FX5200 chip) and inserted a two-way KVM switch between the monitor (plus keyboard) and the machines. On the new PC, I installed SuSE 8.2. It works "out of the box" even in graphic mode (my compliments to the SuSE people - great job!) using that same resolution. Unluckily, the positioning of the image within the total frame is different from the old machine: It is a bit too high and too far left. This holds not only for the graphic mode but also for the boot sequence (using GRUB) which displays the little Tux image above the scrolling area, so it is no pure text mode any longer. Using the monitor's OSD info tells me that the boot sequence uses the same resolution as the X11 display.
As the monitor shows a correct image positioning when running from the old PC (both Linux and Windows), I would rather not use the monitor controls to correct the image position - all is done at 1024*768, 60 Hz. Using "xvidtune" on the new machine would help me for the X sessions, but how can I influence the mode line for the boot sequence and for the text mode consoles (tty1 .. tty6) and the message screen (tty10)?
TIA for all hints and documentation pointers, Joerg Bruehe