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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 @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
                        • Z
                          Zering @ecto
                          last edited by Zering

                          Has anybody been able to play Lunar : Silver Star Harmony with text displaying correctly?

                          Edit : Never mind, replacing the files under bios/PPSSPP/flash0/font with original PSP font dumps and reinstalling PPSSPP from source did the trick.

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

                            @ecto I went through my collection and saved myself about 10GB. I'm having a little difficulty getting some of them to scrape that were fine as .ISOs but otherwise all good.

                            Incidentally, if I wanted to make a feature request for Lr-PPSSPP where would be the best place to go?

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

                              @george-spiggott Thet's good, isn't it? You just made room for 8-10 more games :D

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

                                @george-spiggott How much did you shave those 10 GB out of?
                                I'd be interested to know the exact ratio.

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

                                  @zering I have 45 roms that are now 35GB combined. They were 47GB, so closer to 12GB saved.

                                  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
                                  • ?
                                    A Former User
                                    last edited by A Former User

                                    (deleted)

                                    Z 1 Reply Last reply Reply Quote 0
                                    • Z
                                      Zering @A Former User
                                      last edited by Zering

                                      @agtrigormortis I think you may have the wrong thread ^^

                                      @George-Spiggott Brilliant. A 25% decrease sounds amazing. I have 300 GB of Roms ^^

                                      ? 1 Reply Last reply Reply Quote 0
                                      • ?
                                        A Former User @Zering
                                        last edited by

                                        @zering I was meaning that post for the N64 related thread, not the PSP one, no clue how that ended up here, oh well, I deleted it anyway since it is off topic to this one, my apologies. ^^

                                        1 Reply Last reply Reply Quote 0
                                        • EfriimE
                                          Efriim @George Spiggott
                                          last edited by

                                          @george-spiggott
                                          I have noticed performance drop on PSP hardware with CSO. Only with GTA LCS.
                                          YACC is a good program for converting to CSO, by default I believe it removes update files and most dummy files so the savings can be significant with some .isos. If you really want to save space, for games that can be installed to the PSP there is usually a ~500mb archive that is unecessary on the ISO. However sometimes the installation archive is loaded to play the game. UMD GEN is kind of handy for finding those archives and making an iso without them.

                                          UMD Gen 4.0

                                          Font text fix for people playing Lunar or a few other games that the text doesn't fit

                                          CrushC 1 Reply Last reply Reply Quote 1
                                          • CrushC
                                            Crush @Efriim
                                            last edited by

                                            I use CISO at compression lvl 9 to batch convert to CSO
                                            In regards to GTA LCS i get the same frame dips compressed as i get uncompressed, as far as i can tell with the naked eye anyways. Vice City runs like a charm though, but LCS is just not enjoyable to play in either form as it stands now in my opinion.

                                            1 Reply Last reply Reply Quote 0
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