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CIRCLE WITH A DOT

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  3. Just spent several hours trying to figure out the software settings to get composite video output from a Raspberry Pi‘s audio jack.

Just spent several hours trying to figure out the software settings to get composite video output from a Raspberry Pi‘s audio jack.

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  • janbeta@chaos.socialJ janbeta@chaos.social

    Just spent several hours trying to figure out the software settings to get composite video output from a Raspberry Pi‘s audio jack.

    My adapter cable has the wrong pinout. D‘oh.

    thomas@social.bau-ha.usT This user is from outside of this forum
    thomas@social.bau-ha.usT This user is from outside of this forum
    thomas@social.bau-ha.us
    wrote last edited by
    #5

    @janbeta

    *done the modification*

    but not all distros support it by default. sometime switching to x11 or play with config.txt/cmdline.txt is needed.

    janbeta@chaos.socialJ 1 Reply Last reply
    0
    • socketwench@masto.hackers.townS socketwench@masto.hackers.town

      @janbeta Odd question, have you ever used or have needed one of those soldering hot plates? I've seen them advertised for reflow work, but almost never see anyone using them for repairs.

      janbeta@chaos.socialJ This user is from outside of this forum
      janbeta@chaos.socialJ This user is from outside of this forum
      janbeta@chaos.social
      wrote last edited by
      #6

      @socketwench I heard they work very well but have not tried them myself. I guess they are more useful for populating fresh boards, not so much for repairs/rework.

      gamesmissed@mastodon.socialG 1 Reply Last reply
      0
      • janbeta@chaos.socialJ janbeta@chaos.social

        Just spent several hours trying to figure out the software settings to get composite video output from a Raspberry Pi‘s audio jack.

        My adapter cable has the wrong pinout. D‘oh.

        cyberspice@oldbytes.spaceC This user is from outside of this forum
        cyberspice@oldbytes.spaceC This user is from outside of this forum
        cyberspice@oldbytes.space
        wrote last edited by
        #7

        @janbeta Ah the good old 3.5mm jack. Is the tip video or one of the rings? Anyones guess!

        1 Reply Last reply
        0
        • thomas@social.bau-ha.usT thomas@social.bau-ha.us

          @janbeta

          *done the modification*

          but not all distros support it by default. sometime switching to x11 or play with config.txt/cmdline.txt is needed.

          janbeta@chaos.socialJ This user is from outside of this forum
          janbeta@chaos.socialJ This user is from outside of this forum
          janbeta@chaos.social
          wrote last edited by
          #8

          @thomas I think my settings are fine. I just didn’t think of measuring the cable pinout. Turns out, I have the ground connection on the wrong pins. No wonder I didn’t get a proper picture... 😄

          thomas@social.bau-ha.usT 1 Reply Last reply
          0
          • janbeta@chaos.socialJ janbeta@chaos.social

            Just spent several hours trying to figure out the software settings to get composite video output from a Raspberry Pi‘s audio jack.

            My adapter cable has the wrong pinout. D‘oh.

            twilliability@genart.socialT This user is from outside of this forum
            twilliability@genart.socialT This user is from outside of this forum
            twilliability@genart.social
            wrote last edited by
            #9

            @janbeta Been exactly there, done exactly that... I feel you! I'm glad it worked out in the end. Enjoy!

            (LMK if you want to send shader output to that composite video with no X11. That was another rough ride I've gone through.)

            1 Reply Last reply
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            • janbeta@chaos.socialJ janbeta@chaos.social

              @thomas I think my settings are fine. I just didn’t think of measuring the cable pinout. Turns out, I have the ground connection on the wrong pins. No wonder I didn’t get a proper picture... 😄

              thomas@social.bau-ha.usT This user is from outside of this forum
              thomas@social.bau-ha.usT This user is from outside of this forum
              thomas@social.bau-ha.us
              wrote last edited by
              #10

              @janbeta

              think, when you see the rainbow at start its all an config thing.

              but find the pinout somewhere on the net. but doesnt safe it. sorry

              1 Reply Last reply
              0
              • janbeta@chaos.socialJ janbeta@chaos.social

                Just spent several hours trying to figure out the software settings to get composite video output from a Raspberry Pi‘s audio jack.

                My adapter cable has the wrong pinout. D‘oh.

                lacey@mastodon.gamedev.placeL This user is from outside of this forum
                lacey@mastodon.gamedev.placeL This user is from outside of this forum
                lacey@mastodon.gamedev.place
                wrote last edited by
                #11

                @janbeta Even though 30+ years of futzing with computers has taught me to always check the cable first, I never check the cable first.

                janbeta@chaos.socialJ 1 Reply Last reply
                0
                • janbeta@chaos.socialJ janbeta@chaos.social

                  @socketwench I heard they work very well but have not tried them myself. I guess they are more useful for populating fresh boards, not so much for repairs/rework.

                  gamesmissed@mastodon.socialG This user is from outside of this forum
                  gamesmissed@mastodon.socialG This user is from outside of this forum
                  gamesmissed@mastodon.social
                  wrote last edited by
                  #12

                  @janbeta @socketwench I've used a mini-soldering plate in repairing an LED television last year (thread is here: https://mastodon.social/@GamesMissed/114701321053574112). The hot plate couldn't melt the solder by itself, but provided enough thermal energy into the chunky LED strips that I was then able to easily remove the dead LEDs with my soldering irons.

                  1 Reply Last reply
                  0
                  • lacey@mastodon.gamedev.placeL lacey@mastodon.gamedev.place

                    @janbeta Even though 30+ years of futzing with computers has taught me to always check the cable first, I never check the cable first.

                    janbeta@chaos.socialJ This user is from outside of this forum
                    janbeta@chaos.socialJ This user is from outside of this forum
                    janbeta@chaos.social
                    wrote last edited by
                    #13

                    @Lacey Same here. 😄

                    1 Reply Last reply
                    0
                    • janbeta@chaos.socialJ janbeta@chaos.social

                      Just spent several hours trying to figure out the software settings to get composite video output from a Raspberry Pi‘s audio jack.

                      My adapter cable has the wrong pinout. D‘oh.

                      trcwm@mastodon.socialT This user is from outside of this forum
                      trcwm@mastodon.socialT This user is from outside of this forum
                      trcwm@mastodon.social
                      wrote last edited by
                      #14

                      @janbeta Scheibe!

                      1 Reply Last reply
                      0
                      • janbeta@chaos.socialJ janbeta@chaos.social

                        @socketwench At least I learned that there are several different "standard" pinouts for those cables… I hope I remember it for the next time. 😄

                        mmu_man@m.g3l.orgM This user is from outside of this forum
                        mmu_man@m.g3l.orgM This user is from outside of this forum
                        mmu_man@m.g3l.org
                        wrote last edited by
                        #15

                        @janbeta @socketwench yeah, just like for cellphone there's two of them… OMTP vs CTIA.

                        There are adapters like this:

                        Link Preview Image
                        High Quality Universal 3.5mm OMTP to CTIA Male to Female Earphone Converter Adapter Cable for iPhone Andorid Smartphone Accessor - AliExpress 44

                        Smarter Shopping, Better Living! Aliexpress.com

                        favicon

                        aliexpress. (aliexpress.com)

                        1 Reply Last reply
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