Re: Fastvid
Pamula Harrison
This is on Al-Jalima, my Pentium Pro machine. I've swapped from the Voodoo Banshee to a Matrox Millennium II and Voodoo2 combo, and I've started messing around with ways to improve my video performance under DOS/Win9x. FastVid completely breaks compatibility with EGA/CGA stuff no matter what I do, and MTRRLFBE does the same but in a different way that makes me think I might be able to fix it. I was wondering if that's just intrinsic to enabling Write Combining or if it's something I'm doing wrong? The solution can't just be to stop running my EGA/CGA stuff on there, this is my one DOS-capable machine (ISA sound) and probably will be for quite a while.
Well, I settled for asking in my AUTOEXEC via CHOICE if I wanted to run MTRRLFBE or not, defaulting to yes after 5 seconds. Then I have a couple of batch files in my start menu (and PATH) to enable/disable write combining as needed. Thankfully MTRRLFBE seems to let me reverse the process without a reboot -- fastvid didn't seem to want to.