You will want to intentionally set a resolution in the dosbox configuration file so that when the game switches resolutions when launched, it doesnt screw up your output. You can also try to disable the sound through the setup utility of the game to further reduce load on your CPU. If you are streaming it, get an alternative build of DOSBOX that is built against SDL2, as that will use the GPU surface, which should allow the game capture to work. If you try to enter the full screen mode by clicking.
In order to fix this issue and make VirtualBox full screen, you should install VirtualBox Guest Additions on the guest OS.
Download Sid Meiers Civilization and launch it with DOSBox to have the best. How to make dosbox full screen windows iso In the VM window, go to Devices > Insert Guest Additions CD image to insert the ISO disk into the virtual CD drive of the VM. Please note that this is a trade off: you lose in fluidity of video what you gain in speed Make sure your GPU meets the minimum specs.
Go back one step and repeat this until the game runs fast enough for you. Increase the number of frames skipped (in increments of one) by pressing CRTL+F8.
Since VGA emulation is the most demanding part of DOSBox in terms of actual CPU usage, we'll start here. Overclock DOSBox until 100% of your CPU is used (use the utilities above to check) Once 100% of your real CPU time is used there is no further way to speed up DOSBox unless you reduce the load generated by the non-CPU parts of DOSBox. You can see how much free time your true CPU has by looking at the Task Manager in Windows 2000/XP and the System Monitor in Windows 95/98/ME. Then select the 'screen' tab and check the box to run the program in full screen mode 1) Download DOSBox-X for macOS from the DOSBox-X home page Then type Exit to leave However, using CDs requires copying files (using DiskExplorer) to a large image file Move your newly-created shortcut to where you want to open Move your newly-created. You can overclock DOSBox by using CTRL+F12, but you'll be limited by the power of your actual CPU. In the readme, there is this section which should be helpful:ĭOSBox emulates the CPU, the sound and graphic cards, and some other stuff, all at the same time. My suggestion is to first try to reduce the CPU cycles until the game runs smoothly, but sometimes CPU will become too slow for the game, this is where frameskip comes in, adding a few frameskips will often help.
Ok, CTRL F11/F12 increases/decreases the CPU cycles and CTRL F7/F8 subtracts/adds frameskip