larry@palan.uucp (Larry Strickland) (05/13/91)
I'm having an annoying problem with my graphics setup and hope that someone can shed some light. First off, the ingredients: Generic AMI Motherboard 25 MHz 80386, 64k cache 12 Meg Memory 300 Meg (roughly) SCSI (though it happened with an RLL also) drive VGA 4000 from 2thMAX (also, generic Tseng, Platinum and CompuAdd) graphic card with 1 Meg memory. NEC Multisyc 4D. QEMM 5.11 Windows software (a ton of same). Prior to getting the Tseng 4000 card, I used a generic Paradise chipset card with 512K of memory and was (relatively) happy using 800x600x16 while wishing I could get to 800x600x256. When the above cards became available, I tried them in my system hoping to be able to upgrade. Each card has the same basic problem using their supplied (and cross testing) drivers, each different. The 4D works great in 640x480x256 and also in 1024x768x256, but the screen will not 'sync' in when used in 800x600 mode. Originally, I thought it was a driver problem and cursed people for not making correct Windows drivers. However, I've verified that it has the same problem with at least 3 different graphics programs (CSHOW, VPIC and MVGAVU). I've also tried removing QEMM, thinking there may have been a memory conflict in upper memory, but that didn't help. A friend also tried another monitor and it also gave the same problem, so it might not be just the NEC 4D. While I'm not desparate (the 1024 mode is quite nice, but a bit small for my eyes), I'd very much like to resolve the program. Perusing the NEC 4D documentation helped not at all (and I'm loathe to call them if it isn't really their problem). The documentation for the card(s) was also no help. Does anyone have any ideas they could share? Any solutions? Is anyone using a Tseng 4000 card in 800x600x256 and if so, what drivers are you using. Thanks for your help, -larry
marks@pwa-b.uucp (Evan R. Marks) (05/16/91)
>Does anyone have any ideas they could share? Any solutions? Is anyone using >a Tseng 4000 card in 800x600x256 and if so, what drivers are you using. I have the same problem. I am running a Grounhog Graphics Shadow with 1 MB on board (ET4000 chipset) with a panasonic C1381D. I cannot get the 800x600 modes to sync correctly, however I have no problem at 1024x768. I believe I have exhausted all posibilities and have not found a solution either Help... -- Evan R. Marks Pratt & Whitney Aircraft Sr. Systems Support Analyst 400 Main St. M/S 161-05 Sun Workstation Support East Hartford, CT 06108 {philabs,albion}!pwa-b!marks (203) 565-5444
jarnot@canisius.UUCP (Dinsdale Piranha) (06/09/91)
In article <1991May16.140355.12676@pwa-b.uucp>, marks@pwa-b.uucp (Evan R. Marks) writes: > I have the same problem. I am running a Grounhog Graphics Shadow with 1 MB > on board (ET4000 chipset) with a panasonic C1381D. I cannot get the 800x600 > modes to sync correctly, however I have no problem at 1024x768. I believe > I have exhausted all posibilities and have not found a solution either > Help... Had the same problem with my Cardinal VGA732. The solution is actually rather easy - you must first manually set the scan rate of your monitor to approximately 31.5 KHz using whatever utility came with your card (possibly vmode?). If you look in your manual, you'll see that the mode for 800x600x256 is mode 0x30. Setting to this mode should solve the prob...if you have vmode, just type "vmode 30". Kevin Jarnot -- ...!{decvax|watmath|allegra|rocksvax}!sunybcs!canisius!jarnot jarnot@karloff.fstrf.org OR jarnot@klaatu.canisius.edu Canisius College: the small Buffalo college that KNOWS it's small, but still has a big ego anyways...