IBM 6091-019 FAQ or info

You use this information on your own. I take no responsability for it!

I no longer own nor use these beauties so any updates of these pages is depending on you.

Linux

First there is the modeline created from the official specification for the monitor (from Mark Wolfe (markw wwa.com) via Christopher A. Hudson(cahudson gate.net)):

#IBM 6091 mode 1
Mode "1024x1024"
        DotClock        89.2
        HTimings        1024 1045 1205 1408
        VTimings        1024 1027 1030 1056
        #Flags          "-hsync" "-vsync"
EndMode

#IBM 6091 mode 2
Mode "1280x1024"
        DotClock        111.5
        HTimings        1280 1306 1506 1760
        VTimings        1024 1027 1030 1056
        #Flags          "-hsync" "-vsync"
EndMode

#IBM 6091 mode 3
Mode "1280x1024"
        DotClock        120.0
        HTimings        1280 1312 1472 1696
        VTimings        1024 1027 1030 1056
        #Flags          "-hsync" "-vsync"
EndMode

And here comes some modelines for X (Linux) which may or may not work for you. If they work they will probably give you more than those above. At least those with "(Verified OK)" is verified by me and works for me, but still no guarantee of anything. I do not use Linux on the machine with the IBM any more so I wont try any more lines myself.

# 640x480 @ ? Hz
Modeline "640x480"       55        640  664  728  848   480  481  482  500 -hsync +vsync

# 1024x768 @ 75Hz might need some tweeking
Modeline "1024x768"      85       1024 1072 1120 1328   768  796  801  853 -hsync +vsync
# 1024x768 @ 76.21 Hz, 61.35 kHz -hsync 
Modeline "1024x768" 80.00  1024 1027 1069 1304  768 772 777 805 -hsync +vsync

# 1024x1024 @ 60 Hz, 63.36 kHz hsync
Modeline "1024x1024mod1" 89.2108  1024 1045 1205 1408  1024 1027 1030 1056 -hsync +vsync

# 1152x864 @ 75 Hz, ? kHz hsync
Modeline "1152x864" missing

# 1152x890 @ 64948x70 Hz (Verified OK)
ModeLine "1152x890" 98   1152 1202 1301 1518   890  894  898  924 -hsync +vsync

# 1280x1024 @ 60 Hz, 63.36 kHz hsync
Modeline "1280x1024mod2" 111.518  1280 1306 1506 1760  1024 1027 1030 1056 -hsync +vsync
# 1280x1024 @ 67 Hz, 70.75 kHz hsync
Modeline "1280x1024mod3" 120.00  1280 1312 1472 1696  1024 1027 1030 1056 -hsync +vsync
or
Modeline "1280x1024mod2" 120.00  1280 1328 1512 1694  1024 1025 1028 1058 -hsync +vsync
# 1280x1024 @ 74941x70 Hz
ModeLine "1280x1024test"     132 1280 1347 1480 1773  1024 1028 1032 1062 -hsync +vsync
# 1280x1024 @ 72 Hz, ? kHz hsync
Modeline "1280x1024" missing
# 1280x1024 @ 75 Hz, ? kHz hsync
Modeline "1280x1024" missing

# 1408x1126 @ 70754x60 Hz (Verified OK)
ModeLine "1408x1126"   135.00   1408 1460 1595 1916   1126 1130 1134 1163 -hsync +vsync
# 1408x1024 @ 70 Hz, ? kHz hsync
Modeline "1408x1024" missing
# 1408x1024 @ 66 Hz, ? kHz hsync
Modeline "1408x1024" missing
# 1408x1024 @ 65.08KHz 61.05 Hz (Verified OK)
ModeLine "1408x1024"   120.00   1408 1412 1532 1844   1024 1028 1032 1066 -hsync +vsync

# 1408x1200 @ 70.46 kHz 57.90 Hz (Verified OK)
ModeLine "1408x1200"   135.00   1408 1464 1599 1916   1200 1208 1212 1217 -hsync +vsync

Some was calculated by Joakim Wallman (message 1312057 and more in LysKom).
You may have to change the vsync polarity to make it work. More modelines can be achived by using the Colas XFree Modeline Generator.

And a couple for mode 2 from Maurice van Steensel:

Mode "1280x1024"
DotClock 105
HTimings 1280 1288 1456 1752
VTimings 1024 1024 1027 1049
Flags "-hsync" "-vsync"
EndMode

Mode "1152x864"
        DotClock        98
        HTimings        1152 1156 1316 1612
        VTimings        864  872  876  894
        Flags           "-hsync" "-vsync"
EndMode

And one for ATI-Mach64 CT by Clemens

Modeline "1152x864" 108 1152 1156 1300 1518 864 865 868 894 -hsync -vsync

Here is an example of a more or less complete XF86Config.

And a note from Justin Thiessen:
I have found that if your driver supports the "DoubleScan" parameter you can run the monitor at lower resolutions. The 6091-19 makes a great arcade monitor in conjunction with MAME, although this seems somewhat amusing given its original list price of $3000+.

Modeline "x640x480" 64.00 640 732 860 956 480 486 488 496  
         -hsync -vsync DoubleScan

This works for me and almost fills the screen. Also:

Modeline "i768x576" 78.00 768 788 884 1060 576 583 589 596
         -hsync -vsync DoubleScan

This mode has some (relatively small) blank border space on the sides. And some more:

    ModeLine "ibm1400x1050" 133.38 1400 1480 1800 1912 1050 1052 1064 1090
-hsync -vsync # 64Hz

    ModeLine "ibm1280x960" 122 1280 1324 1716 1720 960 963 974 996 -hsync
-vsync # 71.21 Hz

    ModeLine "ibm1152x864" 108.00 1152 1172 1316 1518 864 865 868 894
-hsync -vsync # 79.58 Hz

    ModeLine "ibm1024x768" 103 1024 1124 1364 1500 768 770 782 796 -hsync
-vsync # 86.26 Hz

    ModeLine "ibm800x600" 81 800 804 908 1080 600 604 622 626 -hsync
-vsync DoubleScan

If I have not given proper credit to anyone please tell me. No such file (SSIfooter.html).