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    • TPR

      [SOLVED] HELP! Error: start4.elf is not compatible - This board requires newer software. WHAT???
      Help and Support • noobs sd card config.txt • • TPR

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      djavs

      @TPR any chance of a video as someone like me learns by watching videos an step

    • grumblemax

      Reduce display size
      Help and Support • display control config.txt crop • • grumblemax

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    • GreenHawk84

      Default boot config.txt
      Help and Support • config.txt boot default • • GreenHawk84

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      mitu

      @greenhawk84 Download the latest image and open it with 7zip to look in the boot partition and read it. This is what it looks like, extracted from the PI4 image:

      # For more options and information see # http://rpf.io/configtxt # Some settings may impact device functionality. See link above for details # uncomment if you get no picture on HDMI for a default "safe" mode #hdmi_safe=1 # uncomment this if your display has a black border of unused pixels visible # and your display can output without overscan #disable_overscan=1 # uncomment the following to adjust overscan. Use positive numbers if console # goes off screen, and negative if there is too much border #overscan_left=16 #overscan_right=16 #overscan_top=16 #overscan_bottom=16 # uncomment to force a console size. By default it will be display's size minus # overscan. #framebuffer_width=1280 #framebuffer_height=720 # uncomment if hdmi display is not detected and composite is being output #hdmi_force_hotplug=1 # uncomment to force a specific HDMI mode (this will force VGA) #hdmi_group=1 #hdmi_mode=1 # uncomment to force a HDMI mode rather than DVI. This can make audio work in # DMT (computer monitor) modes #hdmi_drive=2 # uncomment to increase signal to HDMI, if you have interference, blanking, or # no display #config_hdmi_boost=4 # uncomment for composite PAL #sdtv_mode=2 #uncomment to overclock the arm. 700 MHz is the default. #arm_freq=800 # Uncomment some or all of these to enable the optional hardware interfaces #dtparam=i2c_arm=on #dtparam=i2s=on #dtparam=spi=on # Uncomment this to enable infrared communication. #dtoverlay=gpio-ir,gpio_pin=17 #dtoverlay=gpio-ir-tx,gpio_pin=18 # Additional overlays and parameters are documented /boot/overlays/README # Enable audio (loads snd_bcm2835) dtparam=audio=on [pi4] # Enable DRM VC4 V3D driver on top of the dispmanx display stack dtoverlay=vc4-fkms-v3d max_framebuffers=2 [all] #dtoverlay=vc4-fkms-v3d overscan_scale=1

      For the PI2/3 models, I think there's a memory setting added that's extra, the rest should be identical.

    • kip

      Suggestion: Set edid_content_type=4 in config.txt for official image
      Ideas and Development • image hdmi config.txt • • kip

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      dankcushions

      @hhromic interesting! i've added the info from this thread to the docs: https://github.com/RetroPie/RetroPie-Docs/pull/15

      dankcushions created this issue in RetroPie/RetroPie-Docs closed GAME MODE via config.txt, plus note #15
    • Pxtl

      Pi4 Bug: can't change resolution on the 2nd HDMI port
      Help and Support • resolution hdmi port boot problem config.txt • • Pxtl

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      SRossi

      sure! didn't want to imply that, it just was a major roadblock for me yesterday and today and a lot of searching around just showed that a bunch of people had the same problem. the solutions with manually editing the config file sure help but it would have been just so much easier if I could have set it in the menue. not because editing the file is difficult, more like you don't think of it because everything else just works like it should (well, beside the playstation classic controller not working despite being a simple USB device) and the config tool just blanking out is confusing. honestly if the whole system wouldn't crawl around at around 10 - 15fps at 4k you wouldn't even notice the problem is there to begin with. I'll search if the problem is known at Raspbian.

    • sebar

      SD card not booting in Zero W, in 3B it does
      Help and Support • sdcard swap sd card config.txt cmdline.txt • • sebar

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      mitu

      @sebar said in SD card not booting in Zero W, in 3B it does:

      Why insist on this old System? It contains tweaks, which I am not able to reproduce.

      We don't support 3rd party systems, we don't know how they've been configured and set-up.
      Your image has a special kernel, which might as well not work on a Pi 0 if it was optimized for the Pi3 CPU.

    • Jiryn

      Why will it not let me edit Config.txt?
      Help and Support • config.txt permission denied • • Jiryn

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      Jiryn

      I'd like to fully admit I'm a moron...
      The cord wasn't fully plugged in which is why my recording device and etc were having issue detecting the raspberry pi..

      I am so so so sorry for wasting your time.
      e2fdd77a-4b4c-4d68-875f-3c2ed67dd43a-image.png

    • pojr

      RetroPie stuck in 4:3 (the interface, NOT the games)
      Help and Support • aspect ratio samsung config.txt raspi-config • • pojr

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      dankcushions

      @pojr said in RetroPie stuck in 4:3 (the interface, NOT the games):

      @dankcushions
      I don't think it would be 81, but you are correct that it's wrong. Shouldn't be 16 because my TV only displays up to 720p, not 1080p. Although it is a 16:9 TV (not 64:27 like it shows under #81). Also, my TV frequency isn't 30Hz, unless I'm missing something.

      you've fixed it now so i guess this is irrelevant but yes, you'd need to use hdmi_group=2 for 81 - it doesn't seem to be supported under 1. but yes, @mitu 's suggestion would get show you the complete list of supported modes. given that it's less than 4k, i would always want to be running in the native panel resolution so you don't get scaling artefacts.

      i assume now you've taken out hdmi_safe you can safely take out any hard coded modes and it should hopefully choose 1366x768 by default.

    • pscotto1234

      Overclock on demand
      Help and Support • overclock dreamcast n64 settings config.txt • • pscotto1234

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      pscotto1234

      Ok. Cannot be done :)
      Thanks for your reply.

    • thedjm

      Forcing HDMI audio
      Help and Support • audio hdmi config.txt raspi-config • • thedjm

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      mitu

      Using raspi-config to change the audio output will not write to /boot/config.txt, but will change the ALSA (sound system) settings.
      Changing the settings from the raspi-config will invoke

      amixer cset numid=3 2

      underneath. Try running this command from the command line (exit EmulationStation via the menu or by pressing F4) and see if the settings are kept after a reboot.
      If that doesn't work, then add more info about your system, as detailed in https://retropie.org.uk/forum/topic/3/read-this-first.

    • acidtech

      display_default_lcd=0 doesnt appear to be working in 4.5
      Help and Support • dpi lcd config.txt • • acidtech

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    • Chuck_B

      Lost boot/config.txt from backup image
      Help and Support • config.txt video • • Chuck_B

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      Chuck_B

      you're right. I was looking in the wrong partition. thank you very much

    • Paul.higazi

      Gameboy Zero HDMI-TFT problem
      Help and Support • hdmi tft rotate problem config.txt • • Paul.higazi

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    • fuzzybat23

      No /boot/config.txt
      Help and Support • berryboot retropie boot config config.txt • • fuzzybat23

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      BuZz

      @fuzzybat23 berryboot works differently. You can mount the partition with the globally shared config.txt though - https://raspberrypi.stackexchange.com/questions/6972/location-of-berryboots-config-txt

    • Andyp74

      Editing the config.txt file for pi2scart
      Help and Support • pi2scart retropie config.txt raspberry pi 3 • • Andyp74

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    • coldnpale

      project with power button + LED w/ enable_uart
      Projects and Themes • power button power led config.txt • • coldnpale

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      coldnpale

      Instead of using the "enable_uart=1" line in config.txt, I found out it might be more optimal to activate the voltage on pin 8 from inside the retropie>raspi-config>interfacing options>Serial.

    • nitesuh

      Waveshare 4" hdmi display working with Retropie!
      Help and Support • hdmi waveshare config.txt 4inch waveshare display driver • • nitesuh

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    • victornmartins

      Multiple Screen - File Cofing
      Help and Support • screen resoluti config.txt portable screen portable pi two displays • • victornmartins

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      victornmartins

      @jonnykesh
      That sad...
      But thanks!

    • Jabbafeet

      Elecrow 5" display, Retropie not showing fullscreen, Looking for overscan settings
      Help and Support • black borders fullscreen config.txt 5 inch screen elecrow • • Jabbafeet

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