[K12OSN] Fix for "Indigo" Mac video

[Eric Harrison]

I tested all of the differences in Jim Kronebusch's XF86Config-4.indigo
and found that the magic is in setting UseFBDev to true in the video
driver section (see attached patch).

This does not appear to break the half-dozen Macs I tested on, so
hopefully we'll be able to just add this to the defaults. I should
also wrap it in a 'if [ `uname -m` = "ppc" ]' ...

I'll build a new ltsp_ppc package with this change for further
testing.

-Eric



--- build_x4_cfg.orig   2005-03-26 15:49:09.623567544 -0500
+++ build_x4_cfg        2005-03-26 17:40:43.820894864 -0500
@@ -216,6 +216,7 @@
          Driver     "${X4_DRIVER}"
          ${BUSID}
          ${XVIDRAM}
+        Option          "UseFBDev"              "true"
  EOF

      for i in 01 02 03 04 05 06 07 08 09 10; do