X problems

["M.C. Vernon" <mcv21@cus.cam.ac.uk>]

Dear all,

I got X setup OK (using XF86Setup), and then set start-xdm in the config
file, but xdm dies horribly (from the error log):

 (--) Mach64: Mode "1024x768" needs hsync freq of 35.57 kHz. Deleted.
<a bit later>

(--) Mach64: There is no mode definition named "1024x768"

Fatal server error:
No valid modes found.

Now my XF86Config file:

Section "Monitor"
   Identifier      "Primary Monitor"
   VendorName      "Unknown"
   ModelName       "Unknown"
   HorizSync       31.5-31.5,35.15-35.15,35.5-35.5
   VertRefresh     55-90
   Modeline  "1024x768"   44.96 1024 1048 1208 1264 768 776 784 817 +hsync
+vsync interlace
EndSection

These were all made by XF86Setup, and indeed it worked OK when Setup ran
it's little auto-test.

So why doesn't it work now? and indeed, would fiddling the HorizSync rate
be OK or am I going to blow my monitor?

Matthew


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