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    Slow 4k performance pi4

    Recalbox General
    slow performance pi4
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    • ivwshane
      ivwshane last edited by

      I’m getting slow performance on pi4 that’s hooked up to a 4k tv. I know I need to edit the config file to force it into 1080p mode but I cannot find where the line is or what I need to change it to. I tried searching the wiki (which is starting to look really good btw) but the only thing in English I could find was for odroid.

      Can someone tell me what and where I need to change the setting?

      RustyMG 1 Reply Last reply Reply Quote 0
      • RustyMG
        RustyMG @ivwshane last edited by RustyMG

        @ivwshane /recalbox/system/recalbox.config

        I personally have it set to 720p, as there is no point in wasting cpu power rendering these games at 1080p, and at 1080p, a lot of shaders will slow the device down, whereas they work fine at 720p

        Also, as per inside that file, you must stop the N64 and Dreamcast rendering at even 720p.

        These lines are there, probably preceded with a ; so they don't take effect. That semi colon must be removed, and the lines need to be:

        system.es.videomode=CEA 4 HDMI
        Thats near the start

        global.videomode=CEA 4 HDMI
        Thats probably around line 300

        n64.videomode=CEA 4 HDMI
        dreamcast.videomode=CEA 4 HDMI

        Those 2 will be around line 400 ish

        Sinclair ZX Spectrum 48k "dead flesh" keyboard, Commodore 64, Amiga A500, Amiga A1200, CD32, PC Engine, PS1, PS2, PSP, Nintendo DS, Dreamcast, Wii, XBox 360, Xbox One-X, Pi2, Pi3, Pi4 owner, ARRM contributor ( http://jujuvincebros.fr/wiki/arrm/doku.php ).

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