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    Getting the best PSP experience on a Pi 4

    Scheduled Pinned Locked Moved General Discussion and Gaming
    pi 4bpspppsspplr-ppssppoverclocking
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    • George SpiggottG
      George Spiggott
      last edited by

      I've been playing GTA: Vice City Stories with this seup in 3x and 1:1 resolution where it plays fairly smoothly. Does anyone know the resolution of 1:1?

      Currently running:
      Retropie 4.8.9 on a Pi Zero 2W (Overclock Settings: CPU 1400Mhz)
      ES-DE on a GMKtec K6 (Windows 11, 32GB RAM)

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

        @George-Spiggott said in Getting the best PSP experience on a Pi 4:

        Does anyone know the resolution of 1:1?

        480x272 is native PSP resolution, so I would assume that's what it is.

        1 Reply Last reply Reply Quote 0
        • George SpiggottG
          George Spiggott
          last edited by

          That is 1x in ppsspp. 1:1 seems to be higher res, maybe HD but I can't tell exactly.

          Currently running:
          Retropie 4.8.9 on a Pi Zero 2W (Overclock Settings: CPU 1400Mhz)
          ES-DE on a GMKtec K6 (Windows 11, 32GB RAM)

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

            @George-Spiggott maybe the native resolution of your display, or current display mode.

            1 Reply Last reply Reply Quote 0
            • George SpiggottG
              George Spiggott
              last edited by

              Since I now have the official release (4.6) and new overclock settings (v3d @ 850) I have gone back to experimenting with PSP settings. I'm currently running Lr-PPSSPP without the modified video mode. I'm getting reasonable results that seem comparable to PPSSPP. I was able to reduce Audio Latency (ms) to 512 (this is not modifiable in PPSSPP AFAIK) which helps with the sound breaks/crackling when the game slows down.

              Medieval - Resurrection runs in 1080p (PSP resolution x4) without fault if you're prepared to put up with some fairly heavy breaks in the sound during the intros or 544p (PSP resolution x2) if you're not. Tomb Raider - Anniversary seems no slower in 544p than it was in PPSSPP but with smoother audio. Grand Theft Auto - Vice/Liberty City Stories both seem fine in 544p.

              Currently running:
              Retropie 4.8.9 on a Pi Zero 2W (Overclock Settings: CPU 1400Mhz)
              ES-DE on a GMKtec K6 (Windows 11, 32GB RAM)

              1 Reply Last reply Reply Quote 0
              • IceChes1I
                IceChes1
                last edited by

                I have no idea how 4.6 runs. I accidentally bricked my Pi 4.
                :(

                HOME CONSOLE
                Pi 4
                SanDisk 64 GB
                Master branch install
                3.5 amp CanaKit PSU
                Logitech F310, Dell keyboard, Dell mouse, JetFlash Transcend 16 GB USB stick
                HANDHELD
                Pi 0 W
                SanDisk 32 GB
                Random image I found. Had a driver I needed.
                IPEGA PG-9157 USB Receiver

                simpleethatS 1 Reply Last reply Reply Quote 0
                • simpleethatS
                  simpleethat @IceChes1
                  last edited by

                  @IceChes1 I'm really not trying to highjack this thread but I've got to ask. How did you brick a pi?

                  1 Reply Last reply Reply Quote 0
                  • IceChes1I
                    IceChes1
                    last edited by

                    Tried to attach a cooling fan to it which somehow fried it.

                    HOME CONSOLE
                    Pi 4
                    SanDisk 64 GB
                    Master branch install
                    3.5 amp CanaKit PSU
                    Logitech F310, Dell keyboard, Dell mouse, JetFlash Transcend 16 GB USB stick
                    HANDHELD
                    Pi 0 W
                    SanDisk 32 GB
                    Random image I found. Had a driver I needed.
                    IPEGA PG-9157 USB Receiver

                    1 Reply Last reply Reply Quote 0
                    • George SpiggottG
                      George Spiggott
                      last edited by George Spiggott

                      Has anyone managed to get any noticeable increase in performance since installing the new v5.4 kernel? I think there are definitely incremental improvements to both kernel and emulator that have allowed me to reduce my reliance on frame skip.

                      I did notice that PPSSPP's smoothing seems to have very little overhead and can be used in a few games.

                      Currently running:
                      Retropie 4.8.9 on a Pi Zero 2W (Overclock Settings: CPU 1400Mhz)
                      ES-DE on a GMKtec K6 (Windows 11, 32GB RAM)

                      1 Reply Last reply Reply Quote 0
                      • CrushC
                        Crush
                        last edited by

                        Simply changing "lower resolution for effects" from off to agressive, causes 99% of the games to run full speed while looking wonderfull at 2x resolution without overclocking.

                        George SpiggottG 1 Reply Last reply Reply Quote 0
                        • George SpiggottG
                          George Spiggott @Crush
                          last edited by

                          @Crush said in Getting the best PSP experience on a Pi 4:

                          Simply changing "lower resolution for effects" from off to agressive, causes 99% of the games to run full speed while looking wonderfull at 2x resolution without overclocking.

                          How do you access that? It is greyed out in PPSSPP.

                          Currently running:
                          Retropie 4.8.9 on a Pi Zero 2W (Overclock Settings: CPU 1400Mhz)
                          ES-DE on a GMKtec K6 (Windows 11, 32GB RAM)

                          CrushC A 2 Replies Last reply Reply Quote 0
                          • CrushC
                            Crush @George Spiggott
                            last edited by

                            @George-Spiggott said in Getting the best PSP experience on a Pi 4:

                            How do you access that? It is greyed out in PPSSPP.

                            I can't think of any option that would disable it, i didn't do anything special to change it.
                            It's ppsspp not lr-ppsspp.

                            1 Reply Last reply Reply Quote 0
                            • A
                              AdamBeGood @George Spiggott
                              last edited by AdamBeGood

                              @George-Spiggott said in Getting the best PSP experience on a Pi 4:

                              @Crush said in Getting the best PSP experience on a Pi 4:

                              Simply changing "lower resolution for effects" from off to agressive, causes 99% of the games to run full speed while looking wonderfull at 2x resolution without overclocking.

                              How do you access that? It is greyed out in PPSSPP.

                              I believe the resolution has to be at 2x (or rather above 1x). It seems to make little sense, but God Of War: Chains does seem better with it... Rather counter-intuitive and I haven't played far in but this does seem to work.

                              Resistance still falls over, but definitely gets further than without the Aggresive setting.

                              George SpiggottG 1 Reply Last reply Reply Quote 0
                              • George SpiggottG
                                George Spiggott @AdamBeGood
                                last edited by

                                In LR-PPSSPP there are three frame skip options. Auto (on/off), Number of Frames (0-9) and Frame Skip Type (0-9). Does anyone know what Frame Skip Type is? and what the 10 different settings do?

                                Also is it possible to activate the post processing effects, specifically FXAA?

                                Currently running:
                                Retropie 4.8.9 on a Pi Zero 2W (Overclock Settings: CPU 1400Mhz)
                                ES-DE on a GMKtec K6 (Windows 11, 32GB RAM)

                                retropieuser555R 1 Reply Last reply Reply Quote 0
                                • retropieuser555R
                                  retropieuser555 @George Spiggott
                                  last edited by

                                  Just messing around with the PPSSPP, how is everyone exiting their games? As I realised if you add --escape-exit to the option in emulator.cfg it lets you use whatever you've mapped to "pause" to leave the emulator, rather than having to go through the 2 menus each time.

                                  The only game I've set to the 1x resolution is burnout, everything else seems to run pretty much fine on 2x with a little audio crackling but no lag and a nice frame rate of 20/30/60 depending on the game.

                                  Pi 5 4GB

                                  Retroflag GPI with raspberry pi zero 2 w/ wifi

                                  Retroachievements:- lovelessrapture

                                  Z 1 Reply Last reply Reply Quote 0
                                  • Z
                                    Zering @retropieuser555
                                    last edited by

                                    @retropieuser555 I use the center button on my PS3 controller, which I've set as my trigger for hotkeys. It brings up the PPSSPP menu and I exit using that.

                                    1 Reply Last reply Reply Quote 0
                                    • retropieuser555R
                                      retropieuser555
                                      last edited by

                                      Has anyone used the CSO format for their ROMs? All mine are in ISO, is there any significant performance issues using the compressed format instead?

                                      Pi 5 4GB

                                      Retroflag GPI with raspberry pi zero 2 w/ wifi

                                      Retroachievements:- lovelessrapture

                                      ectoE 1 Reply Last reply Reply Quote 1
                                      • ectoE
                                        ecto @retropieuser555
                                        last edited by

                                        @retropieuser555 I'm using .cso exclusively. So far, I haven't found anything that didn't work. I would guess, that using compressed files only marginally influences the emulation speed (almost all other emus load compressed files without performance issues).
                                        And loading a .cso file is probably still a lot faster than using discs on a real PSP ;)

                                        George SpiggottG 1 Reply Last reply Reply Quote 3
                                        • George SpiggottG
                                          George Spiggott @ecto
                                          last edited by

                                          What kind of savings are you getting with CSO? Is it lossless?

                                          Currently running:
                                          Retropie 4.8.9 on a Pi Zero 2W (Overclock Settings: CPU 1400Mhz)
                                          ES-DE on a GMKtec K6 (Windows 11, 32GB RAM)

                                          ectoE EfriimE 2 Replies Last reply Reply Quote 0
                                          • ectoE
                                            ecto @George Spiggott
                                            last edited by

                                            @george-spiggott Yes, it's lossless. And although I haven't measured it I would guess you save around 20% - 30% of space. You can change the compression level, but I haven't made tests. I left it at the standard setting in my isocompressor (iirc level 6).

                                            Z George SpiggottG 2 Replies Last reply Reply Quote 1
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