Date: Tue, 03 Jan 1995 10:09:05 -0500 From: dusio <dusio@ws062.bytex.network.com> To: questions@freebsd.org Cc: dusio@ws062.bytex.network.com Subject: Can't get 1024x768 in Xfree Message-ID: <9501031509.AA08785@ws062>
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I am thrilled with real "X" under FreeBSD on my home pc.
Thanks to the questions@freebsd system I have resolved the
problems with my Microsoft BusMouse. I am using X, but am
unable to get a resolution higher than 640x480. This is
a problem for me since an emacs session creates a window
which is larger than my physical screen.
I have put some serious effort into configuring my
XF86Config file. I have read the "Hitchhiker guide to
Xfree/X386 Video Timing" by Eric S. Raymond, and have
performed the calculations therein. No Luck; I just
am not doing something right. I need some help.
[ I have also tried the xf86config program. But if I
answer "yes" to "X -probeonly" within that program, my
monitor flips on a LED which tells me that it cant sync
with the incoming signal, AND the X server seems to hang
(since typing "reboot" or "shutdown now" has no effect).
So it creates ModeLines which do not use my dot clocks ]
My site specific information is as follows:
-----------------------------------------------------------
Section "Device"
Identifier "Diamond Stealth Pro"
VendorName "Diamond Computer Systems, Inc."
BoardName "Stealth Pro"
Chipset "s3_generic"
Option "nomemaccess"
# RamDac "SS2410 (9313A/T140x)"
# Clockchip "DCS2824-0 (9313LAD) 14.318xtal"
# Chipset "S3 P86c928 1XP1-001 93295 DB 9318095 Korea"
VideoRam 2048
Clocks 19.9 22.3 24.8 25.0 28.1 31.3
Clocks 32.2 35.7 35.9 37.0 39.8
Clocks 39.7 44.6 49.6 49.9 56.2 62.6
Clocks 64.4 71.4 71.8 73.9 79.6
EndSection
Section "Monitor"
Identifier "MAG MX15F"
VendorName "MAG"
ModelName "MX15F"
Bandwidth 100
HorizSync 30-64
VertRefresh 50-120
# This monitor supports 72hz refresh and is NI
# 640x400 @ 70 Hz, 31.5 kHz hsync
Modeline "640x400" 25.175 640 664 760 800 400 409 411 450
# 640x480 @ 60 Hz, 31.5 kHz hsync
Modeline "640x480" 25.175 640 664 760 800 480 491 493 525
EndSection
-------------------------------------------------------
The two modes listed above work. But I am unable to scale
them up to 1024X768 (or 800x600 or 1280x1024).
Could it be that I need more than 32 ticks of guard time?
Could it be that 3.8us is too little time to stabilize the
beam?
Could it be that 150us is too little time for a vertical
refresh?
Could it be that I did the math wrong?
I think that I've come close, but I would really appreciate
the answers (or advice) from someone who has lived through
this configuration process.
Thank You in Advance
Joe Dusio (dusio@bytex.network.com)
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