Getting the best PSP experience on a Pi 4
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@IceChes1 I'm really not trying to highjack this thread but I've got to ask. How did you brick a pi?
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Tried to attach a cooling fan to it which somehow fried it.
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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.
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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.
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@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 4.7 on a Pi 4B 4GB (Overclock Settings: CPU 2100, GPU (V3D) 850) - On hiatus
Emulationstation on a NUC 8 (i5, Windows 11, 16GB RAM) -
@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. -
@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.
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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?
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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.
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@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.
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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?
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@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 ;) -
What kind of savings are you getting with CSO? Is it lossless?
Currently running:
Retropie 4.7 on a Pi 4B 4GB (Overclock Settings: CPU 2100, GPU (V3D) 850) - On hiatus
Emulationstation on a NUC 8 (i5, Windows 11, 16GB RAM) -
@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).
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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.
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@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 4.7 on a Pi 4B 4GB (Overclock Settings: CPU 2100, GPU (V3D) 850) - On hiatus
Emulationstation on a NUC 8 (i5, Windows 11, 16GB RAM) -
@george-spiggott Thet's good, isn't it? You just made room for 8-10 more games :D
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@george-spiggott How much did you shave those 10 GB out of?
I'd be interested to know the exact ratio. -
@zering I have 45 roms that are now 35GB combined. They were 47GB, so closer to 12GB saved.
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