I had the same problems with my ancient Matrox Mystique (Monitor shows frequency out of range)
I solved it by turning on the ShadowFB option:
Section "Device" Identifier "Matrox Graphics, Inc. MGA 1064SG Mystique]" Driver "mga" BusID "PCI:0:12:0" Option "ShadowFB" "true" Option "OldDmaInit" "True" EndSection
(The OldDmaInit options seems not to matter)
I had to specify the HorizSync and VertRefresh options for my monitor. Now it works with a resolution of "1024x768" and a Depth of 16.
I had the same problem when installing Dapper.
I had the same problems with my ancient Matrox Mystique (Monitor shows frequency out of range)
I solved it by turning on the ShadowFB option:
Section "Device"
Identifier "Matrox Graphics, Inc. MGA 1064SG Mystique]"
Driver "mga"
BusID "PCI:0:12:0"
Option "ShadowFB" "true"
Option "OldDmaInit" "True"
EndSection
(The OldDmaInit options seems not to matter)
I had to specify the HorizSync and VertRefresh options for my monitor.
Now it works with a resolution of "1024x768" and a Depth of 16.
I had the same problem when installing Dapper.