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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    Strange vertical bands once libretro runs

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    video issuescompositebanding
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    • D
      Dolland
      last edited by

      No one has this problem?

      1 Reply Last reply Reply Quote 0
      • windgW
        windg
        last edited by windg

        Do you have the same issue with the default carbon theme ? Try please to provide as much info you can https://retropie.org.uk/forum/topic/3/read-this-first

        My English isn't at a good level.

        D 1 Reply Last reply Reply Quote 0
        • D
          Dolland @windg
          last edited by Dolland

          @windg yes, it happens also with default carbon theme.
          For further infos I'm using last stock retropie build, 4.8, no mods outside of an osd that runs also at system startup, when the bands doesn't appear and so I don't think is a osd problem also because when bands appear, disabling the osd doesn't make them disappear :⁠-⁠\

          sirhenrythe5thS 1 Reply Last reply Reply Quote 0
          • sirhenrythe5thS
            sirhenrythe5th @Dolland
            last edited by

            @Dolland just brainstorming: what happens when you disable this OSD at all, so it does not start up?

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            • B
              barbudreadmon @Dolland
              last edited by barbudreadmon

              @Dolland hmmm, the thing that comes to mind is that it's not switching back to the same video mode after returning from an application ?
              Maybe it'd help if you used another mode in pi's config.txt ?

              FBNeo developer - github - forum

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              • D
                Dolland @sirhenrythe5th
                last edited by Dolland

                @sirhenrythe5th Will definitely check once I'll get my PC so i can ssh inside the pi.

                @barbudreadmon
                Uhm... in my config.txt (that i will post once i get a PC) i set PAL mode when using composite out, so may it be that once i start an app, sdtv mode changes and doesn't return back to the correct mode?
                May it be that switching to NTSC comes with these bands?

                And if that, how can it force the whole system to use the config.txt settings?

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                • B
                  barbudreadmon @Dolland
                  last edited by

                  @Dolland sorry, i'm not familiar with those kind of setups so i won't be of much help, but i believe it's worth investigating.

                  FBNeo developer - github - forum

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                  • mituM
                    mitu Global Moderator @Dolland
                    last edited by

                    @Dolland said in Strange vertical bands once libretro runs:

                    I've understood that the problem arises as soon as i run any terminal applicative, like audio config, raspi-config or any other apps like that...

                    Are you running EmulationStation from the desktop ?

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                    • D
                      Dolland @mitu
                      last edited by

                      @mitu no, i'm not running emulationstation from desktop, it starts automatically at startup

                      @sirhenrythe5th also with the OSD service disabled, the behavior is the same :/

                      @barbudreadmon i checked the config.txt i'm running and i don't see any strange stuffs:

                      # 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=0
                      
                      # uncomment the following to adjust overscan. Use positive numbers if console
                      # goes off screen, and negative if there is too much border
                      overscan_left=0
                      overscan_right=-18
                      overscan_top=-10
                      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=2
                      #hdmi_mode=23
                      
                      # 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
                      sdtv_aspect=3
                      #display_rotate=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=off
                      #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
                      #dtparam=audio=off
                      #dtoverlay=hifiberry-dac 
                      #dtoverlay=i2s-mmap
                      #dtoverlay=max98357a,no-sdmode
                      [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
                      gpu_mem_256=128
                      gpu_mem_512=256
                      gpu_mem_1024=256
                      overscan_scale=1
                      
                      #force_turbo=1
                      
                      dtoverlay=pwm-2chan,pin=18,func=2,pin2=13,func2=4
                      dtoverlay=audremap,pin_13,enable_jack=on
                      disable_audio_dither=1
                      # this is config COMPOSITE
                      dtparam=i2c1=on
                      
                      
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                      • B
                        barbudreadmon @Dolland
                        last edited by barbudreadmon

                        @Dolland Maybe https://discourse.osmc.tv/t/composite-output-in-raspberry-pi-fix/95697 would help ? They make some mention about dtoverlay stuff in config.txt and video resolution stuff in cmdline.txt

                        This is european PAL, right ? Apparently brazilian PAL might require 3 for sdtv_mode

                        FBNeo developer - github - forum

                        D 1 Reply Last reply Reply Quote 0
                        • D
                          Dolland @barbudreadmon
                          last edited by Dolland

                          @barbudreadmon will try reading it, but thing is i don't have any problem untill i run something outside of emulationstation...
                          when system boots (and boot use config.ini settings) all is as it should be.

                          EDIT: i didn't find anything useful in that link :/

                          1 Reply Last reply Reply Quote 0
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