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    recalbox not work well with DPI LCD on 4B

    Recalbox General
    recalbox dpi lcd
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    • ian57
      ian57 Staff @DRAgon734235 last edited by

      @DRAgon734235 I think you need to use the fdmk overlay instead of the dmks overlay : here is may configuration for my 800x480 dpi screen

      temp_soft_limit=70
      dtoverlay=vc4-fkms-v3d
       
       
      # custom config
      [all]
      #3.5 HD tft screen 800x480
      dtoverlay=dpi18
      disable_overscan=1
       
      overscan_left=0
      overscan_right=0
      overscan_top=0
      overscan_bottom=0
       
      hdmi_force_hotplug=1
       
       
      #geekwrom
      framebuffer_width=800
      framebuffer_height=480
      #dtparam=spi=off
      #dtparam=i2c_arm=off
      enable_dpi_lcd=1
      display_default_lcd=1
      dpi_output_format=0x6f015
      dpi_group=2
      dpi_mode=87
      hdmi_timings=480 0 16 16 24 800 0 4 2 2 0 0 0 60 0 32000000 6
      #display_rotate=3
      

      "UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity." Dennis Ritchie

      DRAgon734235 2 Replies Last reply Reply Quote 0
      • DRAgon734235
        DRAgon734235 @ian57 last edited by

        @ian57
        I use recalbox-rpi4 7.1

        this is my code :

        dtoverlay=vc4-fkms-v3d
        max_framebuffers=1
        overscan_scale=1
        
        overscan_left=0
        overscan_right=0
        overscan_top=0
        overscan_bottom=0
        
        hdmi_force_hotplug=1
        
        framebuffer_width=480
        framebuffer_height=800
        
        gpio=0-9=a2
        gpio=12-17=a2
        gpio=20-25=a2
        dtoverlay=dpi18
        enable_dpi_lcd=1
        display_default_lcd=1
        #extra_transpose_buffer=2
        dpi_group=2
        dpi_mode=87
        dpi_output_format=0x7F216
        hdmi_timings=480 0 26 16 10 640 0 25 10 15 0 0 0 60 0 32000000 1
        dtoverlay=waveshare-28dpi-3b-4b
        
        

        The recalbox still stay at that recalbox logo picture always

        1 Reply Last reply Reply Quote 0
        • DRAgon734235
          DRAgon734235 @ian57 last edited by

          @ian57

          Your recalbox is 4.6 ?

          ian57 1 Reply Last reply Reply Quote 0
          • ian57
            ian57 Staff @DRAgon734235 last edited by ian57

            @DRAgon734235 nop, 7.2 beta 🙂 do you have something connected on HDMI?

            "UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity." Dennis Ritchie

            DRAgon734235 1 Reply Last reply Reply Quote 0
            • DRAgon734235
              DRAgon734235 @ian57 last edited by

              @ian57
              I have tried to connect or not connect HDMI LCD , the HDMI LCD not display

              they do not have any effect

              ian57 1 Reply Last reply Reply Quote 0
              • ian57
                ian57 Staff @DRAgon734235 last edited by

                @DRAgon734235 here is my complete config.txt :

                ############################################################################
                # Boot loader configuration                                                #
                # Warning: do not edit this file as it will be overwritten when upgrading! #
                ############################################################################
                
                # Using /etc/modules is deprecated and no longer supported on 4.4 kernel
                # So manually enable audio
                dtparam=audio=on
                
                # if you plug your tv at the same time as your rpi and that the rpi switches from the hdmi or
                # give a low resolution because tv had no enough time to initialize it
                boot_delay=3
                
                # disable boot rainbow
                disable_splash=1
                
                # default CEC name
                cec_osd_name=recalbox
                
                avoid_safe_mode=1
                
                kernel=boot/linux
                initramfs boot/initrd.gz
                
                # force hdmi while the tv can take time before sending the signal on the hdmi output
                hdmi_force_hotplug=1
                
                # total amount of GPU memory
                gpu_mem_256=128
                gpu_mem_512=256
                gpu_mem_1024=448
                
                # your settings can be set in /boot/recalbox-user-config.txt
                include recalbox-user-config.txt
                # Raise the first security limit up to 70° instead of 60° for pi3 and pi4
                [pi3]
                temp_soft_limit=70
                
                [pi4]
                temp_soft_limit=70
                dtoverlay=vc4-fkms-v3d
                #max_framebuffer=2
                
                
                # custom config
                [all]
                #3.5 HD tft screen 800x480
                dtoverlay=dpi18
                                            
                #geekwrom DPI 480x800 TFT display
                enable_dpi_lcd=1            
                display_default_lcd=1       
                dpi_output_format=0x6f015   
                dpi_group=2                 
                dpi_mode=87                 
                hdmi_timings=480 0 16 16 24 800 0 4 2 2 0 0 0 60 0 32000000 6
                #display_rotate=3

                "UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity." Dennis Ritchie

                DRAgon734235 1 Reply Last reply Reply Quote 0
                • DRAgon734235
                  DRAgon734235 @ian57 last edited by

                  @ian57

                  thank you

                  where can I download recalbox 7.2 beta ?

                  I will try that

                  ian57 1 Reply Last reply Reply Quote 0
                  • ian57
                    ian57 Staff @DRAgon734235 last edited by ian57

                    @DRAgon734235 sorry you cannot it's development only actually
                    I think it will be soon released.I get this
                    IMG_20210218_083457.jpg

                    "UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity." Dennis Ritchie

                    DRAgon734235 1 Reply Last reply Reply Quote 0
                    • DRAgon734235
                      DRAgon734235 @ian57 last edited by

                      @ian57
                      OK , I will test when recalbox 7.2 beta come .

                      it is possible to rotate the DPI or HDMI LCD with 90 or 270 at recalbox 4B?

                      ian57 1 Reply Last reply Reply Quote 0
                      • ian57
                        ian57 Staff @DRAgon734235 last edited by ian57

                        @DRAgon734235 no not yep... even with new 5.10 kernels

                        did you see this https://www.waveshare.com/wiki/2.8inch_DPI_LCD there are specific overlays for this screen https://www.waveshare.com/wiki/File:28DPIB_DTBO.zip

                        I think you should copy them in the /boot/overlays directory and use the config from the wiki :

                        gpio=0-9=a2
                        gpio=12-17=a2
                        gpio=20-25=a2
                        dtoverlay=dpi24
                        enable_dpi_lcd=1
                        display_default_lcd=1
                        extra_transpose_buffer=2
                        dpi_group=2
                        dpi_mode=87
                        dpi_output_format=0x7F216
                        hdmi_timings=480 0 26 16 10 640 0 25 10 15 0 0 0 60 0 32000000 1
                        #dtoverlay=waveshare-28dpi-3b-4b
                        #dtoverlay=waveshare-28dpi-3b
                        dtoverlay=waveshare-28dpi-4b
                        

                        "UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity." Dennis Ritchie

                        DRAgon734235 1 Reply Last reply Reply Quote 0
                        • DRAgon734235
                          DRAgon734235 @ian57 last edited by DRAgon734235

                          @ian57

                          yes , I use that dtbo file from waveshare

                          I have tried that code , same

                          The LCD can display OK , but recalbox os can not enter Emulator

                          I think this is recalbox bug at DPI LCD,

                          ian57 1 Reply Last reply Reply Quote 0
                          • ian57
                            ian57 Staff @DRAgon734235 last edited by

                            @DRAgon734235 in the code you post, you use dpi18 and not dpi24 which is the right one

                            which one are you using?

                            "UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity." Dennis Ritchie

                            DRAgon734235 1 Reply Last reply Reply Quote 0
                            • DRAgon734235
                              DRAgon734235 @ian57 last edited by

                              @ian57

                              I have tried dpi18 and dpi24

                              they are same result

                              ian57 1 Reply Last reply Reply Quote 0
                              • ian57
                                ian57 Staff @DRAgon734235 last edited by

                                @DRAgon734235 quite strange... works well here...
                                perhaps it comes from the 7.2 beta ... so wait and see 🙂

                                "UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity." Dennis Ritchie

                                DRAgon734235 1 Reply Last reply Reply Quote 0
                                • DRAgon734235
                                  DRAgon734235 @ian57 last edited by

                                  @ian57
                                  it is possible to rotate the DPI or HDMI LCD with 90 or 270 at recalbox 4B?

                                  ian57 1 Reply Last reply Reply Quote 0
                                  • ian57
                                    ian57 Staff @DRAgon734235 last edited by

                                    @DRAgon734235 actually with recalbox, no, sorry

                                    "UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity." Dennis Ritchie

                                    DRAgon734235 1 Reply Last reply Reply Quote 0
                                    • DRAgon734235
                                      DRAgon734235 @ian57 last edited by

                                      @ian57 😥 😢

                                      ian57 1 Reply Last reply Reply Quote 0
                                      • ian57
                                        ian57 Staff @DRAgon734235 last edited by

                                        @DRAgon734235 Yes I know ! 😞

                                        "UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity." Dennis Ritchie

                                        1 Reply Last reply Reply Quote 0
                                        • lulumix
                                          lulumix Banned last edited by

                                          BONJOUR,

                                          je pense avoir trouvais d ou veins mon problème
                                          je passe par (controllers gpio.enablec =0)
                                          je remplace le numéro 0 par1 ou 1.2 enregitrement
                                          je place la carte sd dans le rasb 3b+il se passe rien les boutons de ma bartop ne son pas reconnu je retire ma carte sd que je la remets dans l ordi (controllers gpio.enblec=0) il reste toujours sur 0 méme aprés un enregistrement
                                          je sais pas pourquoi il rest sur 0.

                                          merci de pouvoir me répondre car j arrive pas

                                          Zing 1 Reply Last reply Reply Quote -1
                                          • Zing
                                            Zing Global moderator Translator @lulumix last edited by

                                            @lulumix Please don't do SPAM:

                                            • https://forum.recalbox.com/topic/23465/controleur-gpio?_=1613931565428
                                            • https://forum.recalbox.com/topic/23398/problème-gpio-recalbox-7-1-1?_=1613847836893

                                            Se a minha resposta foi útil, por favor, dê um voto positivo, clicando na seta para cima logo abaixo da resposta, ao lado de "citar".
                                            If my answer was helpful, please give a positive feedback by clicking the up arrow below the answer, next to "quote".

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