nearly forgot .....
HP FAX PAC
Multi screen configuration for HP workstations running CDE on 10.X
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A.) TITLE: How to configure HP workstations running CDE or
mwm to use multiple screens
B.) PROBLEM SUMMARY: You've bought a 715 with an internal CRX
and an CRX-24Z. You'd like to see both graphics cards
at once
C.) AUTHOR: Christine Nasre
D.) DATE: August 19, 1996
E.) KEYWORDS: X, CDE, mwm, multiscreen, configuration, X0screens
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F.) LIST OF TOPICS:
F1-How to create the device files(for 9.x and 10.x)
F2-How to setup a system to use multple screens
F3-How to setup a system to use single logical screen
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F1-How to create the device files(for 9.x and 10.x)
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minor number for 715:
715/64/80/100 => 0x000000 external graphics card (9.X, 10.X)
=> 0x100000 internal " (9.X)
=> 0x010000 internal " (10.X)
715/33/50/75 => 0x100000 external graphics card
=> 0x000000 internal "
To create the device file enter the following:
9.x mknod /dev/crt1 c 12 0x000000
chmod 666 /dev/crt1
10.x mknod /dev/crt1 c 174 0x000000
chmod 666 /dev/crt1
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F2.) How to setup a system to use multple screens
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To accomplish this you need to only change 2 files,
/usr/lib/X11/X0screens and /usr/dt/app-defaults/C/Dtwm.
In X0screens you need to have the device files for the
cards listed. For instance, suppose you have; an internal
graphics card whose device file is /dev/crt, a CRX-28Z whose
device file is /dev/crt2. To have both graphics cards up at the
same time, perform the following:
1. vi /usr/lib/X11/X0screens
make sure the ONLY 2 uncommented lines in this file are:
Screen /dev/crt
Screen /dev/crt
The X0screen configuration can also be done via SAM application
on 10.10 systems.
sam --> Xserver Configuration --> Action --> Modify Screen Options
2. Add these lines to /usr/dt/app-defaults/C/Dtwm that read:
Dtwm*multiScreen: true
Dtwm*screenList: screen_0 screen_1
Make sure that the permissions are alright on the device files
and restart CDE , and you should be set.
If you're running mwm, the only difference is to use:
Mwm*multiScreen: true
Mwm*screenList: screen_0 screen_1
in the /usr/lib/X11/app-defaults/Mwm file.
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F3.) How to setup a system to use single logical screen
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Dtwm has *multiScreen: TRUE by default. To use single a logical screen
1. Edit /usr/dt/app-defaults/C/Dtwm and do:
Dtwm*multiScreen: FALSE
2. Edit /usr/lib/X11/X0screens and add the following line:
SingleLogicalScreen 1 2
/dev/crt0 /dev/crt1
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G.) FURTHER READING
* Using the X Window System (chap. 7)
* Graphics Administration Guide(B2355-90081) (chap. 4)
Xwindows:HP-UX 10.x server configuration
* /usr/lib/X11/Xserver/info/screens/hp has the same information as is
contained in the Graphics Adminsstration Manual
