I bit the bullet last night and decided to set up X11.

Setup:

     A3000/68030/25Mhz 
     68882/25Mhz 
     2 Meg CHIP RAM 
     16 Meg FAST RAM 
     2 1gig Quantum SCSI drives 
     Picasso-IV 
     A2065 Ethernet 
     NetBSD 1.2  with the PicassoIV-MerlinZorroIII-source patches
     X11R6.1, using the Xamiga server

Using the information that I gathered from Picasso96, I was able to do 
a little math and generate this grfmodes file:

--
#num clock  wid hi dep hbs hss hse hbe ht vbs vss vse vbe vt
1 31022723 640 480 8 640 688 768 816 832 479 489 492 519 518
2 53030296 800 600 8 800 832 876 996 1016 599 610 620 639 638
3 85014193 1024 768 8 1024 1072 1184 1310 1336 767 772 777 799 798
4 85014193 1152 900 8 1152 1200 1240 1467 1496 899 905 909 936 935
5 120052432 1280 1024 8 1280 1320 1416 1569 1600 1023 1056 1068 1149 1148
6 93068170 1600 1200 8 1600 1688 1824 2008 2048 1199 1212 1220 1263 1262
7 31022723 640 480 16 640 688 768 816 832 479 489 492 519 518
8 53030296 800 600 16 800 832 876 996 1016 599 610 620 639 638
9 85014193 1024 768 16 1024 1072 1184 1310 1336 767 772 777 799 798
10 85014193 1152 900 16 1152 1200 1240 1467 1496 899 905 909 936 935
11 85014193 1280 1024 16 1280 1320 1416 1569 1600 1023 1056 1068 1149 1148
12 85014193 1600 1200 16 1600 1672 1808 2016 2056 1208 1210 1218 1252 1260
13 31022723 640 480 24 640 688 768 816 832 479 489 492 519 518
14 53030296 800 600 24 800 832 876 996 1016 599 610 620 639 638
15 85014193 1024 768 24 1024 1072 1184 1310 1336 767 772 777 799 798
16 85014193 1152 900 24 1152 1200 1240 1467 1496 899 905 909 936 935
17 85014193 1280 1024 24 1280 1320 1416 1569 1600 1023 1056 1068 1149 1148
--

When I ran grfconfig, I got this output:

[10:48:07] [~] roloc# grfconfig /dev/grf3 /etc/grfmodes
grfconfig: bad monitor definition for mode #9.
grfconfig: bad monitor definition for mode #10.
grfconfig: bad monitor definition for mode #11.
grfconfig: bad monitor definition for mode #12.
grfconfig: bad monitor definition for mode #13.
grfconfig: bad monitor definition for mode #14.
grfconfig: bad monitor definition for mode #15.
grfconfig: bad monitor definition for mode #16.
grfconfig: bad monitor definition for mode #17.

Which gave me these available modes:

[10:48:19] [~] roloc# grfconfig /dev/grf3
 1: 640x480x8   37.2kHz @ 71Hz NI
 2: 800x600x8   52.1kHz @ 81Hz NI
 3: 1024x768x8  63.6kHz @ 79Hz NI
 4: 1152x900x8  56.8kHz @ 60Hz NI
 5: 1280x1024x8 75.0kHz @ 65Hz NI
 6: 1600x1200x8 45.4kHz @ 36Hz NI
 7: 640x480x16  37.2kHz @ 71Hz NI
 8: 800x600x16  52.1kHz @ 81Hz NI
Console: 640x480 (80x60)        31.5kHz @ 60Hz NI

I can't figure out what is wrong with the 16 and 24 bit modes...

The other problem is that in the 8 bit modes, there seems to be a
byte-ordering problem.  I don't know this for sure, but I do know
that the colors are all /wrong/.  Black seem to be the only color that
is showing up properly, everything else is offset.

Any ideas?

--
Michael Parson
Smart Technologies