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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

    ALSA lib pcm.c:7843:(snd_pcm_recover) underrun occurred

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    • T
      thedigi321
      last edited by thedigi321

      I do not have a fix but I do have the same problem on my retropie latest rpi3 so at least you have someone that is having this issue I heard one fix is removing pulseaudio but I don't it installed

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      • T
        thedigi321
        last edited by

        look at the /dev/shm/runcommand.log on mine i had to update the specific emulator because it didnt have the video plugin it need cheers

        1 Reply Last reply Reply Quote 0
        • obsidianspiderO
          obsidianspider
          last edited by

          Nothing showing in there, but I'm wondering if it's because I'm running a TFT via GPIO and the Zero can't keep up.

          📷 @obsidianspider

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          • obsidianspiderO
            obsidianspider
            last edited by

            It seems linked to a recent update. I updated my Super Famicom Pi 3 to 4.1.16 this morning and now I get the ALSA error/warning. It didn't do it when it was on 4.1.11. Weird.

            📷 @obsidianspider

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            • D
              Duveldg
              last edited by

              How and when do you see that error? I saw it one time but cannot find any log of this.

              obsidianspiderO 1 Reply Last reply Reply Quote 0
              • obsidianspiderO
                obsidianspider @Duveldg
                last edited by

                @Duveldg I see it after I select a game in EmulationStation (the screen goes black, it's not actually in EmulationStation) but before the runcommand prompt appears

                📷 @obsidianspider

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                • D
                  Duveldg
                  last edited by

                  Ok that I don't see anymore. I have changed the audio driver for alsathread to sdl2 in all emulators because I did not have sound. Before that I saw the error I think.

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                  • G
                    gopherguts420
                    last edited by

                    I started getting the same errors immediately after installing Kodi 17, if I remove it they go away. I do get semi frequent sound issues now when gaming but just learned to deal with it

                    RascasR 1 Reply Last reply Reply Quote 0
                    • RascasR
                      Rascas @gopherguts420
                      last edited by

                      @gopherguts420 Does it appear only when launching Kodi first, or also if use any emulator withouto using Kodi ? Do you notice any sound issue when you see it ?

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                      • hansolo77H
                        hansolo77
                        last edited by

                        Did you ever get this resolved? I'm having this problem now too. Granted, this topic is 3 months old, and it might have been fixed in a new version of something. I haven't updated any of my stuff in that long a time. Just curious.

                        Who's Scruffy Looking?

                        obsidianspiderO 1 Reply Last reply Reply Quote 0
                        • obsidianspiderO
                          obsidianspider @hansolo77
                          last edited by

                          @hansolo77 I haven't noticed it recently

                          📷 @obsidianspider

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                          • hansolo77H
                            hansolo77
                            last edited by

                            Hmm.. reading about it says it has to do with the driver not getting samples fast enough to play back. I just started scraping a bunch of video snaps for my system and notice the stack of errors when a game launches after I've spent awhile looking at videos. Might be the videos causing the problem..

                            Who's Scruffy Looking?

                            obsidianspiderO 1 Reply Last reply Reply Quote 0
                            • obsidianspiderO
                              obsidianspider @hansolo77
                              last edited by

                              @hansolo77 I've never had video previews on any of my systems. I do try to keep them up to date with the latest RetroPie build. I check every few weeks or so.

                              📷 @obsidianspider

                              1 Reply Last reply Reply Quote 0
                              • hansolo77H
                                hansolo77
                                last edited by

                                Yeah I'll try updating and see if it goes away.

                                Who's Scruffy Looking?

                                1 Reply Last reply Reply Quote 0
                                • R
                                  raelik
                                  last edited by

                                  I'm also getting this, with a fresh install of 4.2 on top of Ubuntu 16.04.3 (for the Odroid XU4).

                                  H 1 Reply Last reply Reply Quote 0
                                  • H
                                    homerotl @raelik
                                    last edited by

                                    @raelik I just bought an Odroid UX4 and installed Retropie. As soon as Emulation station loads I can see the same ALSA lib underrun error. Any clues about what could be causing this?

                                    1 Reply Last reply Reply Quote 0
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