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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    Dosbox on pi 4, game window is fullscreen but not centered on screen

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    • quicksilverQ
      quicksilver
      last edited by quicksilver

      Something is wrong with the formatting of your scripts. I suspect you have windows style line endings instead of Unix style. Delete your scripts and download and just use mine exactly as they are.

      https://mega.nz/folder/ddJTWKaZ#JQV_WCprVMAP77qRnlGmEg

      In the future when you write a script that is intended to be used on a Linux machine, make sure you use a program like notepad++ with formating set to Unix.

      S 1 Reply Last reply Reply Quote 0
      • S
        Simrose @quicksilver
        last edited by

        @quicksilver

        Thanks I'm just waiting to get a chance to try and will let you know. I was using notepad ++ but didn't change format thanks for the tip. I never experimented with them before.
        Sim

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        • S
          Simrose
          last edited by Simrose

          @quicksilver I am using your scripts and still no good. I can see the script message now and the game does play but the video is small in top left and rest of the screen is a graphical mess. I have no idea why. I really want to get it working.
          Thanks Sim

          Hello logfile - runcommand-onstart checking in here
          dosbox detected - changing video mode to 640x480@60hz
          Parameters:
          Executing: bash /home/pi/RetroPie/roms/pc/+Start\ DOSBox.sh "/home/pi/RetroPie/roms/pc/arkanoid.conf"
          /etc/timidity/fluidr3_gm.cfg: No such file or directory
          timidity: Error reading configuration file.
          Please check /etc/timidity/timidity.cfg
          DOSBox version SVN
          Copyright 2002-2019 DOSBox Team, published under GNU GPL.

          CONFIG: Loading primary settings from config file /home/pi/.dosbox/dosbox-SVN.conf
          CONFIG: Loading additional settings from config file /home/pi/RetroPie/roms/pc/arkanoid.conf
          ALSA:Client initialised [128:0]
          MIDI: Opened device:alsa
          One joystick reported, initializing with 4axis
          Using joystick Wireless Controller with 6 axes, 13 buttons and 1 hat(s)
          timidity: no process found
          Hello logfile - runcommand-onend checking in here
          Reverting display back to preferred mode

          quicksilverQ 1 Reply Last reply Reply Quote 0
          • quicksilverQ
            quicksilver @Simrose
            last edited by quicksilver

            @Simrose are you using these settings in your arkanoid.conf?

            fullscreen = true
            fulldouble       = false
            fullresolution = original
            windowresolution = original
            output = surface
            autolock         = true
            sensitivity      = 100
            waitonerror      = true
            priority         = higher,normal
            usescancodes = false
            frameskip = 0
            aspect    = true
            scaler = normal2x
            

            Also when you post code or configs here on the forums put them in a code block by placing three back ticks (```) above your code and three below it. The back ticks should be on their own lines.

            Also when was the last time you updated dosbox?

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            • S
              Simrose @quicksilver
              last edited by Simrose

              @quicksilver

              No I just thought that we just had to change the Dosbox svn like you have it above.

              I just updated from source I'll try again then after that I'll try changing the Conf settings for the actual game.

              Is that what I should of done before?

              Should i keep in dosbox-SVN.conf
              fullscreen = true
              fulldouble = false
              fullresolution = desktop
              windowresolution = original
              output = overlay
              autolock = true
              sensitivity = 100
              waitonerror = true
              priority = higher,normal
              mapperfile = mapper-SVN.map
              usescancodes = false
              frameskip = 0
              aspect = true
              scaler = normal2x
              Or should i restore that file to default and just change in arkanoid.conf

              Sorry
              Sim

              Edit
              I added those above values to the arkanoid.conf and now the screen is much to large and doesnt fit into my resolution.

              The game runs but i would esitmate the top left corner of the game fills the whole screen.
              thanks
              Sim

              quicksilverQ 1 Reply Last reply Reply Quote 0
              • quicksilverQ
                quicksilver @Simrose
                last edited by quicksilver

                @Simrose try to restore the default dosbox-svn.conf to default and just change those settings in the arkanoid.conf.

                I can post the default settings if needed. Or delete the dosbox-svn.conf right before updating dosbox and it should get replaced.

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                • S
                  Simrose
                  last edited by

                  I kept the original but that didnt work. I deleted dosbox-svn.conf and now reinstalling so hopefully will work after that.
                  this is my arkanoid.conf
                  mount c "/home/pi/RetroPie/roms/pc/.data/arkanoid.pc"
                  c:
                  ARKANOID.COM
                  EXIT
                  fullscreen = true
                  fulldouble = false
                  fullresolution = original
                  windowresolution = original
                  output = surface
                  autolock = true
                  sensitivity = 100
                  waitonerror = true
                  priority = higher,normal
                  usescancodes = false
                  frameskip = 0
                  aspect = true
                  scaler = normal2x

                  quicksilverQ 1 Reply Last reply Reply Quote 0
                  • quicksilverQ
                    quicksilver @Simrose
                    last edited by

                    @Simrose can you post your full arkanoid.conf?

                    Remember put three back ticks (```) above and below it (no parentheses)

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                    • S
                      Simrose
                      last edited by Simrose

                      @quicksilver said in Dosbox on pi 4, game window is fullscreen but not centered on screen:

                      [autoexec]
                      # Lines in this section will be run at startup.
                      # You can put your MOUNT lines here.
                      
                      mount c "/home/pi/RetroPie/roms/pc/.data/arkanoid.pc"
                      c:
                      ARKANOID.COM
                      EXIT
                      fullscreen = true
                      fulldouble       = false
                      fullresolution = original
                      windowresolution = original
                      output = surface
                      autolock         = true
                      sensitivity      = 100
                      waitonerror      = true
                      priority         = higher,normal
                      usescancodes = false
                      frameskip = 0
                      aspect    = true
                      scaler = normal2x
                      

                      image

                      quicksilverQ 1 Reply Last reply Reply Quote 0
                      • quicksilverQ
                        quicksilver @Simrose
                        last edited by quicksilver

                        @Simrose The formatting for your arkanoid.conf is completely wrong. Your screen settings need to be in their own [sdl] section. Delete the contents of your arkanoid.conf and copy/paste the entirety what I have below instead. For any other dos games using .conf files use what I have below as a template.

                        # This is the configuration file for DOSBox SVN. (Please use the latest version of DOSBox)
                        # Lines starting with a # are comment lines and are ignored by DOSBox.
                        # They are used to (briefly) document the effect of each option.
                        
                        [sdl]
                        #       fullscreen: Start dosbox directly in fullscreen. (Press ALT-Enter to go back)
                        #       fulldouble: Use double buffering in fullscreen. It can reduce screen flickering, but it can also result in a slow DOSBox.
                        #   fullresolution: What resolution to use for fullscreen: original, desktop or a fixed size (e.g. 1024x768).
                        #                     Using your monitor's native resolution with aspect=true might give the best results.
                        #                     If you end up with small window on a large screen, try an output different from surface.On Windows 10 with display scaling (Scale and layout) set to a value above 100%, it is recommended
                        #                     to use a lower full/windowresolution, in order to avoid window size problems.
                        # windowresolution: Scale the window to this size IF the output device supports hardware scaling.
                        #                     (output=surface does not!)
                        #           output: What video system to use for output.
                        #                     Possible values: surface, overlay.
                        #         autolock: Mouse will automatically lock, if you click on the screen. (Press CTRL-F10 to unlock)
                        #      sensitivity: Mouse sensitivity. The optional second parameter specifies vertical sensitivity (e.g. 100,-50).
                        #      waitonerror: Wait before closing the console if dosbox has an error.
                        #         priority: Priority levels for dosbox. Second entry behind the comma is for when dosbox is not focused/minimized.
                        #                     pause is only valid for the second entry.
                        #                     Possible values: lowest, lower, normal, higher, highest, pause.
                        #       mapperfile: File used to load/save the key/event mappings from. Resetmapper only works with the default value.
                        #     usescancodes: Avoid usage of symkeys, might not work on all operating systems.
                        
                        fullscreen = true
                        fulldouble       = false
                        fullresolution = original
                        windowresolution = original
                        output = surface
                        autolock         = true
                        sensitivity      = 100
                        waitonerror      = true
                        priority         = higher,normal
                        mapperfile       = mapper-SVN.map
                        usescancodes = false
                        
                        [dosbox]
                        # language: Select another language file.
                        #  machine: The type of machine DOSBox tries to emulate.
                        #             Possible values: hercules, cga, tandy, pcjr, ega, vgaonly, svga_s3, svga_et3000, svga_et4000, svga_paradise, vesa_nolfb, vesa_oldvbe.
                        # captures: Directory where things like wave, midi, screenshot get captured.
                        #  memsize: Amount of memory DOSBox has in megabytes.
                        #             This value is best left at its default to avoid problems with some games,
                        #             though few games might require a higher value.
                        #             There is generally no speed advantage when raising this value.
                        
                        language = 
                        machine  = svga_s3
                        captures = capture
                        memsize  = 16
                        
                        [render]
                        # frameskip: How many frames DOSBox skips before drawing one.
                        #    aspect: Do aspect correction, if your output method doesn't support scaling this can slow things down!
                        #    scaler: Scaler used to enlarge/enhance low resolution modes. If 'forced' is appended,
                        #              then the scaler will be used even if the result might not be desired.
                        #              To fit a scaler in the resolution used at full screen may require a border or side bars,
                        #              to fill the screen entirely, depending on your hardware, a different scaler/fullresolution might work.
                        #              Possible values: none, normal2x, normal3x, advmame2x, advmame3x, advinterp2x, advinterp3x, hq2x, hq3x, 2xsai, super2xsai, supereagle, tv2x, tv3x, rgb2x, rgb3x, scan2x, scan3x.
                        
                        frameskip = 0
                        aspect    = true
                        scaler = normal2x
                        
                        [cpu]
                        #      core: CPU Core used in emulation. auto will switch to dynamic if available and
                        #              appropriate.
                        #              Possible values: auto, dynamic, normal, simple.
                        #   cputype: CPU Type used in emulation. auto is the fastest choice.
                        #              Possible values: auto, 386, 386_slow, 486_slow, pentium_slow, 386_prefetch.
                        #    cycles: Amount of instructions DOSBox tries to emulate each millisecond.
                        #              Setting this value too high results in sound dropouts and lags.
                        #              Cycles can be set in 3 ways:
                        #                'auto'          tries to guess what a game needs.
                        #                                It usually works, but can fail for certain games.
                        #                'fixed #number' will set a fixed amount of cycles. This is what you usually
                        #                                need if 'auto' fails (Example: fixed 4000).
                        #                'max'           will allocate as much cycles as your computer is able to
                        #                                handle.
                        #              Possible values: auto, fixed, max.
                        #   cycleup: Amount of cycles to decrease/increase with keycombos.(CTRL-F11/CTRL-F12)
                        # cycledown: Setting it lower than 100 will be a percentage.
                        
                        core = dynamic
                        cputype   = auto
                        cycles = max
                        cycleup   = 10
                        cycledown = 20
                        
                        [mixer]
                        #   nosound: Enable silent mode, sound is still emulated though.
                        #      rate: Mixer sample rate, setting any device's rate higher than this will probably lower their sound quality.
                        #              Possible values: 44100, 48000, 32000, 22050, 16000, 11025, 8000, 49716.
                        # blocksize: Mixer block size, larger blocks might help sound stuttering but sound will also be more lagged.
                        #              Possible values: 1024, 2048, 4096, 8192, 512, 256.
                        # prebuffer: How many milliseconds of data to keep on top of the blocksize.
                        
                        nosound   = false
                        rate      = 44100
                        blocksize = 1024
                        prebuffer = 25
                        
                        [midi]
                        #     mpu401: Type of MPU-401 to emulate.
                        #               Possible values: intelligent, uart, none.
                        # mididevice: Device that will receive the MIDI data from MPU-401.
                        #               Possible values: default, win32, alsa, oss, coreaudio, coremidi, none.
                        # midiconfig: Special configuration options for the device driver. This is usually the id or part of the name of the device you want to use (find the id/name with mixer/listmidi).
                        #               Or in the case of coreaudio, you can specify a soundfont here.
                        #               When using a Roland MT-32 rev. 0 as midi output device, some games may require a delay in order to prevent 'buffer overflow' issues.
                        #               In that case, add 'delaysysex', for example: midiconfig=2 delaysysex
                        #               See the README/Manual for more details.
                        
                        mpu401     = intelligent
                        mididevice = alsa
                        midiconfig = 128:0
                        
                        [sblaster]
                        #  sbtype: Type of Soundblaster to emulate. gb is Gameblaster.
                        #            Possible values: sb1, sb2, sbpro1, sbpro2, sb16, gb, none.
                        #  sbbase: The IO address of the soundblaster.
                        #            Possible values: 220, 240, 260, 280, 2a0, 2c0, 2e0, 300.
                        #     irq: The IRQ number of the soundblaster.
                        #            Possible values: 7, 5, 3, 9, 10, 11, 12.
                        #     dma: The DMA number of the soundblaster.
                        #            Possible values: 1, 5, 0, 3, 6, 7.
                        #    hdma: The High DMA number of the soundblaster.
                        #            Possible values: 1, 5, 0, 3, 6, 7.
                        # sbmixer: Allow the soundblaster mixer to modify the DOSBox mixer.
                        # oplmode: Type of OPL emulation. On 'auto' the mode is determined by sblaster type. All OPL modes are Adlib-compatible, except for 'cms'.
                        #            Possible values: auto, cms, opl2, dualopl2, opl3, opl3gold, none.
                        #  oplemu: Provider for the OPL emulation. compat might provide better quality (see oplrate as well).
                        #            Possible values: default, compat, fast, mame.
                        # oplrate: Sample rate of OPL music emulation. Use 49716 for highest quality (set the mixer rate accordingly).
                        #            Possible values: 44100, 49716, 48000, 32000, 22050, 16000, 11025, 8000.
                        
                        sbtype  = sb16
                        sbbase  = 220
                        irq     = 7
                        dma     = 1
                        hdma    = 5
                        sbmixer = true
                        oplmode = auto
                        oplemu  = default
                        oplrate = 44100
                        
                        [gus]
                        #      gus: Enable the Gravis Ultrasound emulation.
                        #  gusrate: Sample rate of Ultrasound emulation.
                        #             Possible values: 44100, 48000, 32000, 22050, 16000, 11025, 8000, 49716.
                        #  gusbase: The IO base address of the Gravis Ultrasound.
                        #             Possible values: 240, 220, 260, 280, 2a0, 2c0, 2e0, 300.
                        #   gusirq: The IRQ number of the Gravis Ultrasound.
                        #             Possible values: 5, 3, 7, 9, 10, 11, 12.
                        #   gusdma: The DMA channel of the Gravis Ultrasound.
                        #             Possible values: 3, 0, 1, 5, 6, 7.
                        # ultradir: Path to Ultrasound directory. In this directory
                        #             there should be a MIDI directory that contains
                        #             the patch files for GUS playback. Patch sets used
                        #             with Timidity should work fine.
                        
                        gus      = false
                        gusrate  = 44100
                        gusbase  = 240
                        gusirq   = 5
                        gusdma   = 3
                        ultradir = C:\ULTRASND
                        
                        [speaker]
                        # pcspeaker: Enable PC-Speaker emulation.
                        #    pcrate: Sample rate of the PC-Speaker sound generation.
                        #              Possible values: 44100, 48000, 32000, 22050, 16000, 11025, 8000, 49716.
                        #     tandy: Enable Tandy Sound System emulation. For 'auto', emulation is present only if machine is set to 'tandy'.
                        #              Possible values: auto, on, off.
                        # tandyrate: Sample rate of the Tandy 3-Voice generation.
                        #              Possible values: 44100, 48000, 32000, 22050, 16000, 11025, 8000, 49716.
                        #    disney: Enable Disney Sound Source emulation. (Covox Voice Master and Speech Thing compatible).
                        
                        pcspeaker = true
                        pcrate    = 44100
                        tandy     = auto
                        tandyrate = 44100
                        disney    = true
                        
                        [joystick]
                        #  joysticktype: Type of joystick to emulate: auto (default), none,
                        #                  2axis (supports two joysticks),
                        #                  4axis (supports one joystick, first joystick used),
                        #                  4axis_2 (supports one joystick, second joystick used),
                        #                  fcs (Thrustmaster), ch (CH Flightstick).
                        #                  none disables joystick emulation.
                        #                  auto chooses emulation depending on real joystick(s).
                        #                  (Remember to reset dosbox's mapperfile if you saved it earlier)
                        #                  Possible values: auto, 2axis, 4axis, 4axis_2, fcs, ch, none.
                        #         timed: enable timed intervals for axis. Experiment with this option, if your joystick drifts (away).
                        #      autofire: continuously fires as long as you keep the button pressed.
                        #        swap34: swap the 3rd and the 4th axis. Can be useful for certain joysticks.
                        #    buttonwrap: enable button wrapping at the number of emulated buttons.
                        # circularinput: enable translation of circular input to square output.
                        #                  Try enabling this if your left analog stick can only move in a circle.
                        #      deadzone: the percentage of motion to ignore. 100 turns the stick into a digital one.
                        
                        joysticktype  = auto
                        timed         = true
                        autofire      = false
                        swap34        = false
                        buttonwrap    = false
                        circularinput = false
                        deadzone      = 10
                        
                        [serial]
                        # serial1: set type of device connected to com port.
                        #            Can be disabled, dummy, modem, nullmodem, directserial.
                        #            Additional parameters must be in the same line in the form of
                        #            parameter:value. Parameter for all types is irq (optional).
                        #            for directserial: realport (required), rxdelay (optional).
                        #                             (realport:COM1 realport:ttyS0).
                        #            for modem: listenport (optional).
                        #            for nullmodem: server, rxdelay, txdelay, telnet, usedtr,
                        #                           transparent, port, inhsocket (all optional).
                        #            Example: serial1=modem listenport:5000
                        #            Possible values: dummy, disabled, modem, nullmodem, directserial.
                        # serial2: see serial1
                        #            Possible values: dummy, disabled, modem, nullmodem, directserial.
                        # serial3: see serial1
                        #            Possible values: dummy, disabled, modem, nullmodem, directserial.
                        # serial4: see serial1
                        #            Possible values: dummy, disabled, modem, nullmodem, directserial.
                        
                        serial1 = dummy
                        serial2 = dummy
                        serial3 = disabled
                        serial4 = disabled
                        
                        [dos]
                        #            xms: Enable XMS support.
                        #            ems: Enable EMS support. The default (=true) provides the best
                        #                   compatibility but certain applications may run better with
                        #                   other choices, or require EMS support to be disabled (=false)
                        #                   to work at all.
                        #                   Possible values: true, emsboard, emm386, false.
                        #            umb: Enable UMB support.
                        # keyboardlayout: Language code of the keyboard layout (or none).
                        
                        xms            = true
                        ems            = true
                        umb            = true
                        keyboardlayout = auto
                        
                        [ipx]
                        # ipx: Enable ipx over UDP/IP emulation.
                        
                        ipx = false
                        
                        [autoexec]
                        # Lines in this section will be run at startup.
                        # You can put your MOUNT lines here.
                        
                        mount c "/home/pi/RetroPie/roms/pc/.data/arkanoid.pc"
                        c:
                        ARKANOID.COM
                        EXIT
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                        • S
                          Simrose
                          last edited by

                          @quicksilver

                          That is so kind of you. It is working now with your settings. I will do the same for each game.

                          I am so happy :-)
                          Thanks
                          Sim

                          quicksilverQ 1 Reply Last reply Reply Quote 1
                          • quicksilverQ
                            quicksilver @Simrose
                            last edited by

                            @Simrose Im glad we finally got it sorted it for you! Happy gaming! :D

                            S 2 Replies Last reply Reply Quote 0
                            • S
                              Simrose @quicksilver
                              last edited by Simrose

                              @quicksilver
                              Thanks so much, I love DOS games and to be able to play them on my pi is wonderful.
                              I will keep an eye on your posts in forum for any change.

                              I thought you might like my dos games list i have working on pi
                              Arkanoid
                              Atomix
                              Berusky
                              Brix
                              Bumpy
                              Challenge of the ancient empires
                              chip and dale rescue rangers nimnul's
                              christmas jetpack
                              crystal caves
                              dragonsphere
                              ducktales quest for gold
                              dyna blaster
                              jazz jackrabbit
                              klass of 99
                              klax
                              prince of persia
                              star wars xwing
                              stunts
                              the incredible machine
                              transport tycoon deluxe
                              wacky wheels
                              wasteland

                              Thanks Sim

                              Edit
                              Most games are playable but I do notice some like atomix not all the game is fitting. But maybe i can adjust those games.

                              1 Reply Last reply Reply Quote 1
                              • S
                                Simrose @quicksilver
                                last edited by

                                @quicksilver

                                Did those same video settings work for all your dos games?
                                I am finding some of them not correct fitting.
                                Thanks
                                Sim

                                quicksilverQ 1 Reply Last reply Reply Quote 0
                                • quicksilverQ
                                  quicksilver @Simrose
                                  last edited by

                                  @Simrose The game is appearing too small or they are being cut off?

                                  S 1 Reply Last reply Reply Quote 0
                                  • S
                                    Simrose @quicksilver
                                    last edited by

                                    @quicksilver
                                    I can actually play the games what dont fit they just being cut off missing just a small part of top etc ( Full Screen)

                                    quicksilverQ 1 Reply Last reply Reply Quote 0
                                    • quicksilverQ
                                      quicksilver @Simrose
                                      last edited by

                                      @Simrose hmm, im not sure, I havent seen this with any of my games.

                                      1 Reply Last reply Reply Quote 0
                                      • R
                                        RussellB
                                        last edited by RussellB

                                        20200731_182719.jpg

                                        Hi,

                                        I've been working with Hurrican, the Linux port and switched over to the DOS version and came up with the DOSBOX issue on the RPI4. I setup my dosbox.conf per this thread as well as runcommand-onstart and runcommand-onend so it flips to 640x480. The image comes up centered but as you can see it leaves a lot of black border around the image. I assume it's keeping the aspect ratio. Is this expected?

                                        Russ

                                        quicksilverQ 1 Reply Last reply Reply Quote 0
                                        • quicksilverQ
                                          quicksilver @RussellB
                                          last edited by

                                          @RussellB said in Dosbox on pi 4, game window is fullscreen but not centered on screen:

                                          I assume it's keeping the aspect ratio. Is this expected?

                                          If you have aspect=true then yes it will preserve the original aspect ratio.

                                          1 Reply Last reply Reply Quote 0
                                          • R
                                            RussellB
                                            last edited by RussellB

                                            Ok this is weird... using the same setup on another RPi4 a friend has the overscanning issue, and I don't. Using the same executable and the same dosbox-SVN.conf.

                                            Ok... my bad... the TV did not support 640x480 properly. Switched to zoom mode and viola. Time for a new tv!

                                            1 Reply Last reply Reply Quote 0
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