How to Manually Install Display Drivers

Instructions on how to manually install display drivers. Downloaded from the OS/2 Shareware BBS, tel. 703-385-0931.

I beat the guys up and got the MANUAL way to change display type WITHOUT needing to install, here it is....

In all cases below, you must have diskettes 6-15 (diskettes installed under PM - may be different depending on driver level). When the instructions say: 'UNPACK A:filename targetdrive:', this implies that this command is run against each of the diskettes as the file may reside on any or all of the diskettes.

For CGA:
 * 1) UNPACK A:CGA targetdrive:
 * 2) copy (or rename) the file \OS2\DLL\CGA.DLL to \OS2\DLL\DISPLAY.DLL
 * 3) change the CONFIG.SYS
 * SET VIDEO_DEVICES=VIO_CGA
 * SET VIO_CGA=DEVICE(BVHCGA)
 * remove any reference to DEVINFO=KDB,xxx,xxxxx

For EGA:
 * 1) UNPACK A:EGA targetdrive:
 * 2) copy (or rename) the file \OS2\DLL\EGA.DLL to \OS2\DLL\DISPLAY.DLL
 * 3) change the CONFIG.SYS
 * SET VIDEO_DEVICES=VIO_EGA
 * SET VIO_EGA=DEVICE(BVHEGA)
 * DEVINFO=KDB,EGA,xxxxx

For VGA:
 * 1) UNPACK A:VGA targetdrive:
 * 2) copy (or rename) the file \OS2\DLL\VGA.DLL to \OS2\DLL\DISPLAY.DLL
 * 3) change the CONFIG.SYS
 * SET VIDEO_DEVICES=VIO_VGA
 * SET VIO_VGA=DEVICE(BVHVGA)
 * DEVINFO=KDB,VGA,xxxxx

For 8514:
 * 1) UNPACK A:8514 targetdrive:
 * 2) copy (or rename) the file \OS2\DLL\8514.DLL to \OS2\DLL\DISPLAY.DLL
 * 3) change the CONFIG.SYS
 * SET VIDEO_DEVICES=VIO_8514
 * SET VIO_8514=DEVICE(BVHVGA,BVH8514)
 * DEVINFO=KDB,BGA,xxxxx

For XGA:
 * 1) UNPACK A:XGA targetdrive:
 * 2) copy (or rename) the file \OS2\DLL\XGA.DLL to \OS2\DLL\DISPLAY.DLL
 * 3) change the CONFIG.SYS
 * SET VIDEO_DEVICES=VIO_XGA
 * SET VIO_XGA=DEVICE(BVHVGA,BVHXGA)
 * DEVICE=targetdrive:\OS2\XGARING0.SYS
 * DEVINFO=KDB,VGA,xxxxx

Where xxxxx = targetdrive:\OS2\VIOTBL.DCP

This does not cover dual display systems, those get somewhat more involved.

This also does not cover changing the OS2.INI file, but since these are changes to colors and must be done programmatically, it is not usually worth the effort.

Irv Spalten BPC Technical Interface Group, Boca Raton FL