| Subject | : | R40 Thinkpad and DOS-VDM memory question |
| Author | : | Mike Luther |
| Date | : | 12 Aug, 2005 on 23:10 |
| Just in R40 from Depot Service and new mainboard with latest BIOS seems not able to disable EGA/VGA video for any DOS-VDM session when any DOS Session Setting choice for VIDEO_MODE_Restriction is set to CGA or MONO. This is MCP2, Fix Pack XRC_05, and the Passport Advantage 2.2.0 IBM SD next to latest video driver package of last February, 2005, which I just installed on it when it arrived. Normally on a 'standard' DOS-VDM session with upper memory and DOS loaded high in the DOS-VDM sessions, plus the standard upper memory limit in DOS for 640MB, you will see about the following at the MEM report in a DOS-VDM window session: 653312 bytes total memory Per all the years of OS/2 here, and all the documentation, as well as the session setting prompts, if you set the mode restriction to CGA or MONO, you'll get to use a major increase in memory up to about the following in dozens of other boxes I've worked with: 752640 bytes total memory This 'new' mainboard R40 *CANNOT* apparently properly shift to the CGA or MONO mode. Even if I set it to that video mode restriction, the available memory doesn't ever increase hardly at all! Moreover, a comparison with an older DOS video checking utility for a myriad of 'normal' vs. this 'new' R40 Tpad shows: VIDMODES EXE 5120 9-30-86 9:27p Can anyone here who has an R40 on OS/2, various OS/2 versions, Fix Packs, or video operations, confirm or deny this with data that would help me debug this?
--> Sleep well; OS2's still awake! |