Hi Ray More likely the VM is doing something that is slow/not optimized for graphics.
For comparison, I regularly run FreeDOS in QEMU on a 6-year-old Linux laptop, and it runs great. Including games and testing out programs (which also includes graphical desktops like SEAL and OpenGEM). Only one game (a graphical adventure/exploration game, don't remember which one) was slow. All of the screenshots from our press kit were made from QEMU running on Linux: http://www.freedos.org/press-kit/screenshots.html I use a Cirrus Logic plain VGA card as my graphical display device in QEMU. My full QEMU configuration (command line) is documented in this how-to article: https://opensource.com/article/17/10/run-dos-applications-linux On Thu, Nov 1, 2018 at 11:15 AM Ray Lopez <r...@well.com> wrote: > > I've got an unusual issue that I've been trying to solve for several > days but have had no luck. > > Running FreeDOS in a QEMU-based VM, on a Xen hypervisor (it's actually > the Qubes OS) > > I managed to get it all installed and it runs well except for one > problem: Screen refresh is too slow, even with simple graphical > interfaces like Tandy Deskmate. > > After much research I am guessing that the VM is emulating some type of > hardware that FreeDOS is not optimized for. And the system I am running > the VM on does NOT allow me to change the hardware emulation easily. > > The frustrating thing is that I faced this exact same problem when I > tried running Tandy Deskmate in a Linux VM under DOSBox. And then when I > was poking around, the problem cleared up and screen refreshes were > super fast! But for the life of me I have not been able to replicate > this success on FreeDOS. > > I'd be open to any suggestions as I think I've tried every possible > setting. Thank you! > > RL > > > > _______________________________________________ > Freedos-user mailing list > Freedos-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-user _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user