LCD Monitor recommendations

[J. Stewart Schneider]

I mentioned that I'd had endless difficulties with LCDs and Linux, and it
just happened again. uname shows that I'm running 2.6.15-27-386 when I
should be at 2.6.17 (I think). I thought perhaps I just hadn't rebooted, as
Adept shows no upgrades. I rebooted, and the video died. The boot sequence
is visible. X starts, and the login screen is displayed. After logging in,
however, the screen goes black, the monitor complains that the frequencies
are out of range, and that's that.

I rebooted into Knoppix with no problem whatsoever, copied the monitor
section from Knoppix, and edited xorg.conf. Chaos. I left it for a bit, and
came back to see the login screen displayed. I logged in, changed the
resolution from 1024x768 to 1280x1024, and am running nicely, but I'm scared
to reboot.

The xorg.conf Monitor section I copied from Knoppix was:
Section "Monitor"
  identifier "SYS-172L"
  vendorname "Plug 'n' Play"
  modelname "Plug 'n' Play"
  HorizSync 30 - 80 # DDC-probed
  VertRefresh 50 - 85 # DDC-probed
  # These are the DDC-probed settings reported by your monitor.
  # 1280x1024, 75.0Hz; hfreq=79.98, vfreq=75.03
  ModeLine "1280x1024"    135.00 1280 1296 1440 1688 1024 1025 1028 1066
+hsync +vsync
  # 1024x768, 75.0Hz; hfreq=60.02, vfreq=75.03
  ModeLine "1024x768"      78.75 1024 1040 1136 1312  768  769  772  800
+hsync +vsync
  # 1024x768, 70.0Hz; hfreq=56.48, vfreq=70.07
  ModeLine "1024x768"      75.00 1024 1048 1184 1328  768  771  777  806
-hsync -vsync
  # 800x600, 75.0Hz; hfreq=46.88, vfreq=75.00
  ModeLine "800x600"       49.50  800  816  896 1056  600  601  604  625
+hsync +vsync  #  #800x600, 72.0Hz; hfreq=48.08, vfreq=72.19
  ModeLine "800x600"       50.00  800  856  976 1040  600  637  643  666
+hsync +vsync
  gamma 1.0
EndSection

The xorg.conf I have now is:
Section "Monitor"
  identifier "SYS-172L"
  vendorname "Plug 'n' Play"
  modelname "Plug 'n' Play"
  modeline  "640x480 at 60" 25.2 640 656 752 800 480 490 492 525 -vsync -hsync
  modeline  "640x480 at 72" 31.5 640 664 704 832 480 489 491 520 -vsync -hsync
  modeline  "640x480 at 75" 31.5 640 656 720 840 480 481 484 500 -vsync -hsync
  modeline  "640x480 at 85" 36.0 640 696 752 832 480 481 484 509 -vsync -hsync
  modeline  "800x600 at 56" 36.0 800 824 896 1024 600 601 603 625 +hsync +vsync
  modeline  "800x600 at 72" 50.0 800 856 976 1040 600 637 643 666 +hsync +vsync
  modeline  "800x600 at 75" 49.5 800 816 896 1056 600 601 604 625 +hsync +vsync
  modeline  "800x600 at 85" 56.3 800 832 896 1048 600 601 604 631 +hsync +vsync
  modeline  "800x600 at 60" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync
  modeline  "832x624 at 75" 57.284 832 864 928 1152 624 625 628 667 -vsync
-hsync
  modeline  "1024x768 at 85" 94.5 1024 1072 1168 1376 768 769 772 808 +hsync
+vsync
  modeline  "1024x768 at 75" 78.8 1024 1040 1136 1312 768 769 772 800 +hsync
+vsync
  modeline  "1024x768 at 70" 75.0 1024 1048 1184 1328 768 771 777 806 -vsync
-hsync
  modeline  "1024x768 at 60" 65.0 1024 1048 1184 1344 768 771 777 806 -vsync
-hsync
  modeline  "1152x864 at 75" 108.0 1152 1216 1344 1600 864 865 868 900 +hsync
+vsync
  modeline  "1152x768 at 54" 64.995 1152 1178 1314 1472 768 771 777 806 +hsync
+vsync
  modeline  "1280x854" 80.0 1280 1309 1460 1636 854 857 864 896 +hsync
+vsync
  modeline  "1280x1024 at 75" 135.0 1280 1296 1440 1688 1024 1025 1028 1066
+hsync +vsync
  modeline  "1280x960 at 60" 102.1 1280 1360 1496 1712 960 961 964 994 -hsync
+vsync
  modeline  "1280x1024 at 60" 108.0 1280 1328 1440 1688 1024 1025 1028 1066
+hsync +vsync
  modeline  "1280x960 at 75" 129.86 1280 1368 1504 1728 960 961 964 1002 -hsync
+vsync
  modeline  "1400x1050 at 60" 122.61 1400 1488 1640 1880 1050 1051 1054 1087
-hsync +vsync
  modeline  "1600x1200 at 60" 162.0 1600 1664 1856 2160 1200 1201 1204 1250
+hsync +vsync
  gamma 1.0
EndSection

How come? How come Knoppix 3.9 came right up and Kubuntu wouldn't? How come
Kubuntu "fixed" itself? Come to that, how come Kubuntu rewrote my
xorg.conffile? The first thing I notice is that Knoppix specified
values for
HorizSync and VertRefresh in Section "Monitor", but Kubuntu doesn't. Is that
significant?

stew
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