![]() Fortunately, these programs can now be run in DOS emulators like DOSBox. You can use it primarily to enjoy retro gaming and run applications for DOS.Ī number of games and applications became hits back in the days of DOS and many of the applications will no longer run on operating systems like Windows 10. The other settings using output overlay still work ok though.A free DOS emulation application that can play old DOS games made for DOS in real mode or protected mode.ĭOSBox is a free, open source and rather popular DOS emulator that can run on the Windows desktop right out-of-the-box with little knowledge of how the Disk Operating System works. I copied your settings exactly also, put scripts in correct place and changed dosbox settings to match yours and ended up with tiny screen in top left. So I'd encourage you to use my above method. Just be aware that performance will still not be as good as your pi 3. However if you don't want to use that method for whatever reason then you'll need to change to these settings: fullscreen = false I would recommend trying the settings in my above post first as I think it will give you the best performance on the pi 4 (better than the pi 3!) If you run into issues let me know! said in Dosbox on pi 4, game window is fullscreen but not centered on said in Dosbox on pi 4, game window is fullscreen but not centered on screen: I did have to lower the display res of windows 3.1 from 800圆00 to 640x480 for my windows 3.1 games to display correctly. All 30 of the dos games I have on my pi are working good with these settings. These setting are working great for me and I can now run Tie Fighter Collectors CD-ROM edition in fullscreen with SVGA mode (gorgeous 640x480 resolution during gameplay) with absolutely no slow down. This script/hack will force 640x480 mode for Dosbox, so your TV will need to support that mode, otherwise modify the script to a mode your TV does support (as close to 640x480 as you can).įor best performance in full-screen use these dosbox settings in conjunction with the above scripts: fullscreen = true #START DOSBOX SECTION - SNIP HERE IF PASTING INTO EXISITNG SCRIPTĮcho "Reverting display back to preferred mode" >&2 Runcommand-onend.sh: #! /usr/bin/env bashĮcho "Hello logfile - runcommand-onend checking in here" >&2 #START DOSBOX SECTION - SNIP CONTENTS IF PASTING INTO EXISTING SCRIPTĮcho "dosbox detected - changing video mode to >&2 Runcommand-onstart.sh: #! /usr/bin/env bashĮcho "Hello logfile - runcommand-onstart checking in here" >&2 ![]() ![]() Youll need to create two scripts and place them in: /opt/retropie/configs/all/ This is my latest workaround for this issue. It's a real bummer, since playing DOS games with improved graphics was one of the reasons for upgrading to the Pi 4. Here's my dosbox config, I'm on a 1920x1080 tv: However, I 've found it's not a "one size fits all" solution, as several games get a forced small window in the center or on the top of the screen, despite having the same config settings as other running full screen. I've got the same problem on my Pi 4 (my Pi3B+ works perfectly with default config) and it's the only way I've managed to play games with a correct aspect ratio. I wish there was a better way to switch video modes on the fly on the pi 4. It's a very clunky way of doing it but for now it's all I can come up with. Then if I want to play other emulators I revert back to 1080p. It's the only way I can get it to work fullscreen and give the performance I'm looking for. So I started using raspi-config to set display res to 640x480, rebooting then playing my dosbox games using output=surface. Said in Dosbox on pi 4, game window is fullscreen but not centered on screen:
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