Created attachment 60295 [details]
working config

Looks more like a configuration issue.

If you don't mind perform the following actions as root:

  cp /etc/X11/xorg.conf /etc/X11/xorg.conf.working
  init 3
  rm -f /var/log/X*
  sax2 -r

and select "--> LCD"  "1024X768@60HZ"
after this save the configuration and exit sax.

now restart the X-Server by simply calling:

  X

shutdown the X-Server after it has been started with the key
combination:

  Ctrl-Alt-BackSpace

now send me the log file:

  /var/log/Xorg.0.log

Thanks

Created attachment 60516 [details]
X server startup log

As asked for - the X display apparently worked fine with 1024x768@60Hz; hopefully it's possible to autodetect that from this output ? :-)

Thanks.

Well unfortunately I think this cannot be autodetected because the
panel doesn't report a valid DDC record.

(II) NEOMAGIC(0): VESA VBE DDC supported
(II) NEOMAGIC(0): VESA VBE DDC Level none
(II) NEOMAGIC(0): VESA VBE DDC transfer in appr. 0 sec.
(II) NEOMAGIC(0): VESA VBE DDC read failed

according to this I can only fallback to the current framebuffer
setup which is by default 800x600. Additionally the old panels
requires a 60Hz mode which forces the user to manually select
something like XxY@60Hz

I'm sorry

thanks for trying & being friendly anyhow :-) good stuff.