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Date:      Fri, 01 Sep 2000 13:00:35 -0400
From:      Bob Johnson <bobj@atlantic.net>
To:        glacious@totaloverdose.net
Cc:        questions@freebsd.org
Subject:   Re: Inspiron 7500 - X 'wraps' around the screen
Message-ID:  <39AFE0B3.5B95EDF9@atlantic.net>

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> ------------------------------
> 
> Date: Thu, 31 Aug 2000 23:11:25 -0400
> From: "Bill" <glacious@totaloverdose.net>
> Subject: Inspiron 7500 - X 'wraps' around the screen
> 
> This is a multi-part message in MIME format.
> 
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> 
> I got X to work on my Dell Inspiron 7500 notebook, and theres a wierd =
> bug with the X server, it seems that the left 1/2 of the screen wraps =
> around to the right 1/3.  so the middle 1/3 is all nice and clear, while =
> the left and right 3rds are overlapping eachother, like theres two =
> layers, but mimicing the opposite side.  I've tried searching the =
> freebsd.org site and X free groups about this, but I couldn't come up =
> with anything that worked.  If anyone else has had this happen to them, =
> or can point me in the right direction, please do.  Thank you.
> 
>                                                         -Bill
> 

I have not yet found an X configuration that doesn't have this problem
for 
resolutions between 1024x768 and 1400x1050 (not inclusive).  I use 
1400x1050 even though I'd rather use 1280x1024 or so.

I downloaded Dell's Inspiron setup for Linux, and the highest resolution 
they supply is 1024x768.

Here are the modelines I use.  If you have a 1400x1050 display, it
should 
work for you.  I've tested and discarded the lines marked "NFG", some of
which 
were provided by others who used them on their (older?) Inspirons, and
some of 
which I came up with myself through various semi-random processes.  As
soon as 
I have some spare time, I'll try again.  I'm thinking of putting an
external 
monitor on it and measuring the actual scan rates that Windows uses in
these 
modes.


Section "Monitor"
   Identifier      "Primary Monitor"
   VendorName      "Unknown"
   ModelName       "Unknown"
   HorizSync       30-100
   VertRefresh     50-100
   Modeline  "640x480"    45.80 640 672 768 864 480 488 494 530 -hsync
-vsync
   Modeline  "800x600"    69.65 800 864 928 1088 600 604 610 640 -hsync
-vsync
   Modeline  "1024x768"  115.50 1024 1056 1248 1440 768 771 781 802
-hsync -vsync

# NFG   Modeline  "1152x864"   65    1152 1168 1384 1480   864  865 
875  985 Interlace
# NFG   Modeline  "1152x864"   89.9  1152 1216 1472 1680   864  868 
876  892 -HSync -VSync
# NFG   Modeline  "1152x864"  110.00 1152 1172 1260 1452   864  864 
876  900 -HSync -VSync
# NFG   Modeline  "1152x864"  137.65 1152 1184 1312 1548   864  866 
885  926 -hsync -vsync

# NFG   Modeline  "1280x960"  155.00 1280 1435 1755 1912   960  963  975
1000 -HSync -VSync

# NFG   Modeline  "1280x1024"  91.60 1280 1344 1536 1728    960  976 
988  1060 -hsync -vsync # actually 1280x960
# NFG   Modeline  "1280x1024"  80    1280 1296 1512 1568  1024 1025 1037
1165 Interlace
# NFG   Modeline  "1280x1024" 110.00 1280 1328 1512 1712  1024 1025 1028
1054 -HSync -VSync
# NFG   Modeline  "1280x1024" 126.5  1280 1312 1472 1696  1024 1032 1040
1068 -HSync -VSync
# NFG   Modeline  "1280x1024" 135.00 1280 1312 1416 1664  1024 1027 1030
1064
# NFG   Modeline  "1280x1024" 135.00 1280 1312 1456 1712  1024 1027 1030
1064
# NFG   Modeline  "1280x1024" 157.50 1280 1344 1504 1976  1024 1025 1028
1032 +hsync +vsync
# NFG   Modeline  "1280x1024" 157.50 1280 1344 1504 1728  1024 1025 1028
1072 +HSync +VSync

   Modeline  "1400x1050" 155.00 1400 1464 1784 1912  1050 1052 1064 1090
-HSync -VSync

EndSection


There is, of course, no guarantee that these won't destroy your system
if it doesn't have 
hardware identical to mine (or even if it does), but at least I haven't
destroyed mine yet.

By the way, when you are ready to get suspend-to-disk going, I've got
that (mostly) working, 
too.

- Bob


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