Hi there, thanks for your attention.

Following info found and SUSE configuration tools (Sax2)
I try to change my screen resolution from the default 1600x1200
to 1280x1024. Yet, Sax2 gives a fixed refresh-frequency option for
each resolution chosen and when I "test" the new configuration
I get "out of scan range". Is this error related to some specified
screen size which I need to change?
Any useful links please?

I try to figure out what kind of changes I need to implement
in the file below (/etc/X11/xorg.conf). I run depth 16.

Section "Monitor"
DisplaySize 377 301
HorizSync 30-96
Identifier "Monitor[0]"
ModelName "SUN 21 PREMIUM COLOR MONITOR"
Option "DPMS"
VendorName "SUN"
VertRefresh 50-160
UseModes "Modes[0]"
EndSection

Section "Modes"
Identifier "Modes[0]"
Modeline "1600x1200" 208.74 1600 1720 1896 2192 1200 1201 1204 1253
Modeline "1600x1200" 205.99 1600 1720 1896 2192 1200 1201 1204 1253
Modeline "1600x1024" 210.30 1600 1720 1896 2192 1024 1025 1028 1078
Modeline "1600x1024" 207.75 1600 1720 1896 2192 1024 1025 1028 1077
Modeline "1600x1024" 205.39 1600 1720 1896 2192 1024 1025 1028 1077
Modeline "1600x1000" 210.24 1600 1720 1896 2192 1000 1001 1004 1054
Modeline "1600x1000" 207.74 1600 1720 1896 2192 1000 1001 1004 1053
Modeline "1600x1000" 205.43 1600 1720 1896 2192 1000 1001 1004 1053
Modeline "1400x1050" 183.64 1400 1504 1656 1912 1050 1051 1054 1104
Modeline "1400x1050" 181.37 1400 1504 1656 1912 1050 1051 1054 1103
Modeline "1400x1050" 179.26 1400 1504 1656 1912 1050 1051 1054 1103
Modeline "1280x1024" 167.32 1280 1376 1512 1744 1024 1025 1028 1078
Modeline "1280x1024" 165.29 1280 1376 1512 1744 1024 1025 1028 1077
Modeline "1280x1024" 163.41 1280 1376 1512 1744 1024 1025 1028 1077
Modeline "1440x900" 189.62 1440 1544 1704 1968 900 901 904 954
Modeline "1440x900" 187.55 1440 1544 1704 1968 900 901 904 953
Modeline "1440x900" 185.67 1440 1544 1704 1968 900 901 904 953
Modeline "1280x960" 168.00 1280 1376 1512 1744 960 961 964 1014
Modeline "1280x960" 166.07 1280 1376 1512 1744 960 961 964 1013
Modeline "1280x960" 164.30 1280 1376 1512 1744 960 961 964 1013
Modeline "1366x768" 179.27 1368 1464 1616 1864 768 769 772 822
Modeline "1366x768" 177.52 1368 1464 1616 1864 768 769 772 821
Modeline "1366x768" 175.99 1368 1464 1616 1864 768 769 772 821
Modeline "1280x800" 166.81 1280 1376 1512 1744 800 801 804 854
Modeline "1280x800" 165.13 1280 1376 1512 1744 800 801 804 853
Modeline "1280x800" 163.64 1280 1376 1512 1744 800 801 804 853
Modeline "1152x864" 151.14 1152 1232 1360 1568 864 865 868 918
Modeline "1152x864" 149.54 1152 1232 1360 1568 864 865 868 917
Modeline "1152x864" 148.10 1152 1232 1360 1568 864 865 868 917
Modeline "1280x768" 167.73 1280 1376 1512 1744 768 769 772 822
Modeline "1280x768" 166.09 1280 1376 1512 1744 768 769 772 821
Modeline "1280x768" 164.66 1280 1376 1512 1744 768 769 772 821
Modeline "1024x768" 135.41 1024 1104 1216 1408 768 769 772 822
Modeline "1024x768" 132.57 1024 1096 1208 1392 768 769 772 821
Modeline "1024x768" 131.43 1024 1096 1208 1392 768 769 772 821
Modeline "1280x600" 156.44 1280 1376 1512 1744 600 601 604 650
Modeline "1280x600" 155.30 1280 1376 1512 1744 600 601 604 650
Modeline "1280x600" 154.17 1280 1376 1512 1744 600 601 604 650
Modeline "1024x600" 124.86 1024 1096 1208 1392 600 601 604 650
Modeline "1024x600" 123.96 1024 1096 1208 1392 600 601 604 650
Modeline "1024x600" 123.05 1024 1096 1208 1392 600 601 604 650
Modeline "800x600" 97.59 800 856 944 1088 600 601 604 650
Modeline "800x600" 96.89 800 856 944 1088 600 601 604 650
Modeline "800x600" 96.18 800 856 944 1088 600 601 604 650
Modeline "768x576" 89.56 768 824 904 1040 576 577 580 624
Modeline "768x576" 88.91 768 824 904 1040 576 577 580 624
Modeline "768x576" 88.26 768 824 904 1040 576 577 580 624
Modeline "640x480" 62.12 640 680 752 864 480 481 484 521
Modeline "640x480" 61.55 640 680 752 864 480 481 484 520
Modeline "640x480" 61.10 640 680 752 864 480 481 484 520
EndSection

Section "Screen"
DefaultDepth 16
SubSection "Display"
Depth 15
Modes "1600x1200" "1600x1024" "1600x1000" "1400x1050" "1280x1024" "1440x900" "1280x960" "1366x768" "1280x800" "1152x864" "1280x768" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1600x1200" "1600x1024" "1600x1000" "1400x1050" "1280x1024" "1440x900" "1280x960" "1366x768" "1280x800" "1152x864" "1280x768" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1600x1200" "1600x1024" "1600x1000" "1400x1050" "1280x1024" "1440x900" "1280x960" "1366x768" "1280x800" "1152x864" "1280x768" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1600x1200" "1600x1024" "1600x1000" "1400x1050" "1280x1024" "1440x900" "1280x960" "1366x768" "1280x800" "1152x864" "1280x768" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
EndSubSection
Device "Device[0]"
Identifier "Screen[0]"
Monitor "Monitor[0]"
EndSection

... forgot to mention that my monitor now
seems to work with UXGA but only SXGA appears
available for 1280x1024. I like high res but
some fonts are too small to feel comfortable with.

Try remove all the modes bigger than 1280x1024.

Or just run xorgconfig and when it asks about monitor capabilities, try:
"Monitor that can do 1280x1024 @ (refresh)"

Cheers Echo.
If this program overwrites xorg.conf I assume it's wise to make a backup of my current configuration.
Then, I can always go level 3 and put that backup back in place - please correct me if I'm wrong.
For the newbie Linux gives you a lot of pain, but who said I don't like that?
Thank you again
Greek ibex

p.s. Currently is 105dpi and the actual screen size = 400x300mm.

Are you using NVidia 3D drivers by any chance?

Not really, Intel 865 G is what Dell supplies for Dimension 1100.
The monitor on the other hand weights about 35 Kgr but is superb :-)
Hi to SH.

Yes Its wise to make a backup.

Hope you get it to work

If somebody is still looking here ...

I tried both ways and I always fall "out of scan range"
when I applied the changes. It is strange though that
Sax2 accepts happily 1600x1200, 800x600, 640x480
but NOT 1024x768 or 1280x1024. My monitor freq ranges
are quite wide and I do not think that this causes the
problem. I tried to change the aspect ration from 4/3
to 5/4 but this seems to be a passive setting.

Any further ideas/help are highly appreciated )


ps. One may wonder why I want to move to a lower resolution.
This is for compatibility with my School settings.
e.g. when I use VNC viewer the letters on the topbars
of the applications look too small because my monitor
is running at 105dpi instead of 72 or 96.