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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 ian57

      @DRAgon734235 seems that Emulationstation does not like unaccelerated Pi4 config.

      When I'll have some time will check on my geekworm dpi screen

      "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 said in recalbox not work well with DPI LCD on 4B:

        geekworm

        OK ,

        think you

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

          @ian57 @Zing

          have news ?

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

            @DRAgon734235 Hi,

            It works well... but no rotation 90/270° available from the firmware and the overlay... the fondation doc DOES NOT work!

            perhaps a lead.. i read something about that the kernel 5.10 supports all rotation from the accelerated overlay... so we need to b*mp to test...

            As a sum up ... All the screen are working with acceleration but no 90° 270° actually
            only 180°

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

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            • DRAgon734235
              DRAgon734235 last edited by

              my 4b stay at this
              alt text

              Do you have any suggestion ? (Even in “rotate=0” )

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              • DRAgon734235
                DRAgon734235 last edited by

                @ian57
                Do you have any suggestion ?

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

                  @DRAgon734235 hdmi or dpi ?
                  which screen ?

                  "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
                  • DRAgon734235
                    DRAgon734235 last edited by

                    @ian57
                    https://www.aliexpress.com/item/1005001659074233.html?spm=a2g0o.productlist.0.0.9cc286b4PDloaM&algo_pvid=05efcf4a-b64c-4624-b3b0-7450fe193177&algo_expid=05efcf4a-b64c-4624-b3b0-7450fe193177-13&btsid=0b86d81616125235002752171e1e1f&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

                    Waveshare 2.8inch dpi LCD

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

                      @DRAgon734235 this screen has 480x640 resolution so you need to rotate it (90 or 270). Actually it seems not to be supported in frambuffer, only with xrandr in GUI. I saw this https://www.raspberrypi.org/documentation/configuration/cmdline-txt.md and tried it but it only works with 0-180° not with 90-270.

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

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                      • DRAgon734235
                        DRAgon734235 last edited by DRAgon734235

                        @ian57

                        I do not rotate the LCD with 90 or 270, the LCD display as the default direction like this image

                        alt text

                        and the recalbox stay at this picture always

                        ian57 1 Reply Last reply Reply Quote 0
                        • 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

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                            • 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
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