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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

    No sound retroflag gpi case with pi zero w 2 (Solved)

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    retroflag gpipi zero w 2 pla
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    • retropieuser555R
      retropieuser555 @Philcomm
      last edited by

      @philcomm Here's there config file:-

      ############################################################################
      # 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=128
      gpu_mem_1024=448
      
      # your settings can be set in /boot/recalbox-user-config.txt
      include recalbox-user-config.txt
      
      # overclocking settings are automatically managed in this file
      # do not remove this line, nor edit the file
      include recalbox-oc-config.txt
      
      # Raise the first security limit up to 70° instead of 60° for pi3 and pi4
      [pi3]
      temp_soft_limit=70
      dtoverlay=vc4-kms-v3d
      include recalbox-crt-config.txt
      
      [pi4]
      temp_soft_limit=70
      dtoverlay=vc4-kms-v3d
      include recalbox-crt-config.txt
      
      # disable 4k resolution
      hdmi_pixel_freq_limit:0=200000000
      hdmi_pixel_freq_limit:1=200000000
      
      [board-type=0x12]
      dtoverlay=vc4-kms-v3d
      
      # custom config
      [all]
      
      

      They don't seem to be using the pwm-audio-pi-zero.dtbo overlay in the config and it isn't in the overlay folders at all. Any ideas how they got this working? Guess can go onto their forum and ask them

      PhilcommP 1 Reply Last reply Reply Quote 0
      • PhilcommP
        Philcomm @retropieuser555
        last edited by Philcomm

        @retropieuser555 Does the /etc/asound.conf file exists? If yes, what's the content?

        retropieuser555R 1 Reply Last reply Reply Quote 0
        • retropieuser555R
          retropieuser555 @Philcomm
          last edited by retropieuser555

          @philcomm

          pcm.monocard{
          	slave.pcm "hw:0"
          	slave.channels 2
          	type route
          	ttable {
          		# Copy both input channels to output channel 1 (Right).
          		0.1 1
          		1.1 1
          		# Copy both input channels to output channel 0 (Left).
          		0.0 1
          		1.0 1
          		}
          }
          
          pcm.!default monocard
          
          

          Thing is though, I don't know a great deal about recalbox, but it's not built on raspbian? Think if I used this in the retropie build it'll work?

          PhilcommP 1 Reply Last reply Reply Quote 0
          • PhilcommP
            Philcomm @retropieuser555
            last edited by

            @retropieuser555 said in No sound retroflag gpi case with pi zero w 2:

            @philcomm

            pcm.monocard{
            	slave.pcm "hw:0"
            	slave.channels 2
            	type route
            	ttable {
            		# Copy both input channels to output channel 1 (Right).
            		0.1 1
            		1.1 1
            		# Copy both input channels to output channel 0 (Left).
            		0.0 1
            		1.0 1
            		}
            }
            
            pcm.!default monocard
            
            

            Thing is though, I don't know a great deal about recalbox, but it's not built on raspbian? Think if I used this in the retropie build it'll work?

            I will have to try later if that works

            1 Reply Last reply Reply Quote 0
            • S
              Slime1982
              last edited by

              Hi, I have been struggling with the same issue, and have managed to solve it.

              The issue is that by default the latest version of Raspbian disables the audio if nothing is connected to HDMI.

              Use this one line entry in config.txt to fix it:

              dtoverlay=audremap,pins_18_19,enable_jack=on
              

              You don't need the pwm-audio-pi-zero.dtbo file and you can remove all the custom audio entries from Retroflag's config.txt and use this one line instead. (leave all the entries for the LCD in obviously).

              The custom asound.conf file in recalbox is used to downmix stereo audio to mono, as the built in speaker on the GPi only outputs the right channel.

              retropieuser555R 1 Reply Last reply Reply Quote 5
              • retropieuser555R
                retropieuser555 @Slime1982
                last edited by

                @slime1982 Hey that's great news can you post your config.txt file please? I think I'm deleting the wrong lines out

                S 1 Reply Last reply Reply Quote 0
                • S
                  Slime1982 @retropieuser555
                  last edited by Slime1982

                  @retropieuser555

                  Start with the stock config.txt and add this at the end:

                  #Pi Zero 2 W GPi Config
                  dtoverlay=audremap,pins_18_19,enable_jack=on
                  display_rotate=1
                  dtoverlay=dpi24
                  overscan_left=0
                  overscan_right=0
                  overscan_top=0
                  overscan_bottom=0
                  framebuffer_width=320
                  framebuffer_height=240
                  enable_dpi_lcd=1
                  display_default_lcd=1
                  dpi_group=2
                  dpi_mode=87
                  dpi_output_format=0x6016
                  #hdmi_timings=320 0 28 18 28 480 0 2 2 4 0 0 0 60 0 32000000 6
                  hdmi_timings=240 1 38 10 20 320 1 20 4 4 0 0 0 60 0 6400000 1
                  

                  you still need Retroflag's dpi24.dtbo, but you don't need to copy the pwm audio overlay file.

                  The custom asound.conf file doesn't work, I suspect because the sound device is now referred to as headphones instead of pcm, but I'm working on it now.

                  Also, go into raspi-config, system options and in audio select 'headphones'. it should be the only option, but select it to ensure it is the default device.

                  PhilcommP S J 3 Replies Last reply Reply Quote 4
                  • PhilcommP
                    Philcomm @Slime1982
                    last edited by

                    @slime1982 Are you an angel? insert Anakin Star Wars GIF

                    S 1 Reply Last reply Reply Quote 1
                    • S
                      Slime1982 @Philcomm
                      last edited by

                      @philcomm

                      Ha! no, just very determined!

                      However, it's not quite right yet. On testing with headphones, the L and R channels are swapped, so I've changed the line to

                      dtoverlay=audremap,pins_18_19,swap_lr
                      

                      note that enable_jack=on does not appear to be necessary .

                      Still working on fixing asound.conf so both channels play through the GPi's speaker. I'll reply with an update when I figure it out.

                      retropieuser555R 1 Reply Last reply Reply Quote 1
                      • retropieuser555R
                        retropieuser555 @Slime1982
                        last edited by

                        @slime1982 Almost there!

                        You're using their dpi25 overlay right? I'm getting some lines across the screen (but audio does work!)

                        MD5 (/Volumes/boot/overlays/dpi24.dtbo) = 55906663a9752f0588b74c407437dc16
                        

                        Is that your md5 hash for your dpi24?

                        S 2 Replies Last reply Reply Quote 0
                        • PhilcommP
                          Philcomm
                          last edited by

                          I'll try to make a PR to RetroFlag for these changes. I hope they have a repo for their GPi Patch

                          1 Reply Last reply Reply Quote 0
                          • S
                            Slime1982 @retropieuser555
                            last edited by

                            @retropieuser555

                            Hi, sorry, had to pop out.

                            Yes, that's the same file I'm using, the md5 matches :)

                            Lines on the screen might be a poor contact issue with the pogo pins.

                            1 Reply Last reply Reply Quote 0
                            • S
                              Slime1982 @retropieuser555
                              last edited by

                              @retropieuser555

                              Hi, sorry, I was testing with a stock Raspbian lite image earlier, I've moved to Retropie now. Do you mean you can see some of the boot text behind the splashscreen?

                              Comment out the line overscan_scale=1 in config.txt and also add these lines, which i neglected to include earlier:

                              avoid_safe_mode=1
                              disable_pvt=1
                              disable_audio_dither=1
                              

                              That seems to fix it for me :)

                              P 1 Reply Last reply Reply Quote 0
                              • S
                                Slime1982 @Slime1982
                                last edited by

                                OK, ignore everything I said about asound.conf. I was testing with Raspbian lite, it works perfectly in Retropie :D

                                So, I think that's it, we're up and running now!

                                retropieuser555R 1 Reply Last reply Reply Quote 1
                                • retropieuser555R
                                  retropieuser555 @Slime1982
                                  last edited by retropieuser555

                                  @slime1982 Heya yeah the screen lines is definitely specific to me, I left the gpi on for a few hours earlier and it's left some screen burn on the dpi screen itself. So a different problem but nothing relevant to this topic, the audio works, the video works and am happily testing out drastic, n64 and psp. It'll be interesting what we can push on this thing. Thanks again for the fix, we'll have to see if retroflag implement it and make it clear for pi zero2 this the way to go.

                                  S 1 Reply Last reply Reply Quote 0
                                  • P
                                    pumpytums @Slime1982
                                    last edited by

                                    @slime1982
                                    This works great thanks.

                                    Can you SSH into your Zero 2 equiped GPI mine reboots everytime. Plays games fine though so doesn't sound like a power issue. Very odd indeed. I even put ssh.txt in the root keeps rebooting every time ssh is enabled.

                                    retropieuser555R S 3 Replies Last reply Reply Quote 0
                                    • retropieuser555R
                                      retropieuser555 @pumpytums
                                      last edited by

                                      @pumpytums Is the file you made named ssh.txt you're putting into the boot folder? It needs to have no extension on the file, just called ssh

                                      P 1 Reply Last reply Reply Quote 0
                                      • retropieuser555R
                                        retropieuser555 @pumpytums
                                        last edited by

                                        This post is deleted!
                                        1 Reply Last reply Reply Quote 0
                                        • P
                                          pumpytums @retropieuser555
                                          last edited by

                                          @retropieuser555
                                          I think this is an issue

                                          fresh install of Retropie 24th October.
                                          Retroflag default files
                                          SSH in boot
                                          wpa_supplicant.conf for WiFi setting

                                          System boots then crashes. This problem occurs whenever SSH is enabled either via file method or through menu Raspi config.

                                          1 Reply Last reply Reply Quote 0
                                          • S
                                            Slime1982 @retropieuser555
                                            last edited by

                                            @retropieuser555

                                            Ah, yeah. I believe those lines will fade out eventually. I've done the same, left it on with no signal from the Pi, so you just get random lines on the screen. They burn in, but it seems to be temporary.

                                            1 Reply Last reply Reply Quote 1
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