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    Recalbox sur TV CRT en RGB

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    • gkralicek2
      gkralicek2 @aTg last edited by

      @aTg Now that's impressive ! Good job mate !

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      • Scandy
        Scandy last edited by

        Ok guys, I need your help. 🙂

        RPi3 > HDMI to VGA > OK! (on a LCD monitor)

        but

        RPi3 > HDMI to VGA > VGA to SCART (from Retrocable.es)

        ...I get only a black picture. 😞

        My crt TV seems to recognize that there is some kind of signal, but I only get a black picture. What I'm doing wrong? :_(

        Thanks.

        aTg Substring gkralicek2 3 Replies Last reply Reply Quote 0
        • aTg
          aTg @Scandy last edited by

          @Scandy For the tv to be set to RGB mode you need 3v on pin 16 of the scart.

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          • Substring
            Substring @Scandy last edited by

            @Scandy said in Recalbox sur TV CRT en RGB:

            So, forced to only one choice, you'd rather use the GPIO for video or controls?
            IMHO the delay generated by an HDMI>VGA converter is more sensitive than that induced by USB hardware.
            I do not take into account the delay caused by the emulator/SDL because it would be present in both cases.

            D**n, i had hoped I2C pins would still be available in DPI mode, or that DPI can be used for DPI. Looks like not. Too bad 😕

            One test that could be done is use a HDMI multiple output, and compare HDMI vs HDMI2VGA at the same time.

            Anywya, enugh of trolling stuff 🙂

            Former dev - Please reply with @substring so that i am notified when you answer me
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            • Substring
              Substring @Scandy last edited by

              @Scandy said in Recalbox sur TV CRT en RGB:

              Ok guys, I need your help. 🙂

              RPi3 > HDMI to VGA > OK! (on a LCD monitor)

              but

              RPi3 > HDMI to VGA > VGA to SCART (from Retrocable.es)

              ...I get only a black picture. 😞

              My crt TV seems to recognize that there is some kind of signal, but I only get a black picture. What I'm doing wrong? :_(

              Thanks.

              @archimage or @ian57 any clue ?

              Former dev - Please reply with @substring so that i am notified when you answer me
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              ian57 1 Reply Last reply Reply Quote 0
              • gkralicek2
                gkralicek2 @Scandy last edited by gkralicek2

                @Scandy Have you plugged the USB connector from the "retrocable.es" cable into one of the Pi USB port or a USB power supply ? You need that +5v line to be connected so the TV can switch to RGB mode properly otherwise it will expect a composite signal by default and display a blank screen.
                If you've done that already and still have a black picture then have you modified the config.txt and recalbox.conf files in order to output a video mode compatible with the TV @15khz (such as CEA mode 6 -> 480i or CEA mode 8 ->240p) ?

                You could use :
                hdmi_group=1
                hdmi_mode=6

                in your ./boot/config.txt file so that emulation station is displayed in 480i (640*480 interlaced mode)

                and :
                global.videomode=CEA 8 HDMI

                in your ./recalbox/share/system/recalbox.conf file so that your emulators run at 240p (720x240 progressive). Note that you will have to adjust the aspect ratio in retroarch and activate the "smoothing" option in recalbox menus to get a proper 4/3 display in your games out from the 720x240 res.

                Scandy 1 Reply Last reply Reply Quote 0
                • Scandy
                  Scandy @gkralicek2 last edited by

                  @gkralicek2 thank you very much for your feedback.
                  Yes, the USB was connected, but in config.txt I only set hdmi_safe=1.

                  I'll check with

                  hdmi_group=1
                  hdmi_mode=6

                  Thanks!

                  gkralicek2 1 Reply Last reply Reply Quote 0
                  • ian57
                    ian57 Staff @Substring last edited by

                    @Substring as gkralicek2, I was thinking of the +5V which force the tv to switch to the right mode.

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

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                    • gkralicek2
                      gkralicek2 @Scandy last edited by

                      @Scandy Then that's for sure the source of your problem :=)... If you haven't configured the config.txt file with a proper output video mode compatible with what your CRT TV can display, all you'll get is a black screen. Default boot up res is 640*480 progressive @31khz which is compatible with a PC LCD screen but NOT with a TV set which is limited to resolutions using a 15khz horizontal frequency (240p, 480i or 576i).
                      Once you'll have applied the settings i gave you in my previous post, you should get a picture :=)

                      Scandy 1 Reply Last reply Reply Quote 0
                      • Scandy
                        Scandy @gkralicek2 last edited by

                        @gkralicek2 @ian57 @Substring thank you for your help!
                        Adding a male - female VGA cable between the HDMI > VGA adapter and Retrocable VGA > SCART fixed it (of course I've also setup config.txt).
                        Now I have a perfectly clear RGB picture on my good old crt TV. 🙂

                        Unfortunately, it seems that real time resolution switch does not work in AdvanceMAME using the HDMI > VGA adapter (I only get a black screen... l'll write to Andrea).

                        So I still wait for the GPIO - VGA from Malaysia... 😕

                        P.S. If someone's interested, I found how to use Unibios in AdvanceMAME.

                        Substring 1 Reply Last reply Reply Quote 0
                        • Substring
                          Substring @Scandy last edited by

                          @Scandy check my issue at Andrea : you're supposed to configure your monitor in advcfg first

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                          Scandy 1 Reply Last reply Reply Quote 0
                          • Scandy
                            Scandy @Substring last edited by

                            @Substring thank you very much for your advice (and for your constant support) I've yet manually configured my monitor (crt TV) in advmame.rc but it seems an issue related to HDMI > VGA adapter I'm using (I can't even run videomodes in advcfg). I'll check with the GPIO-VGA when I'll receive it.

                            I'm testing the 3.1 RC and it's great: Andrea fixed many little things, and audio and vsync are now perfect, as the UI.

                            BTW I've checked both the HDMI > VGA > SCART output and the Composite output and let me say that... to me, lag brought by my Lindy HDMI > VGA is consistent.

                            Ryuuko no Ken (Art of Fighting) in Composite is much more reactive, I hardly feel the difference with the real CMVS. Can't wait to test the VGA shield on the same aspect.

                            On the other hand, seeing AdvanceMAME in pure RGB at 240p@60hz (fixed, for now) is impressive.

                            I smile thinking about how emulation on RPi was different just some time ago. Who knows what the future holds! 😉

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                            • Substring
                              Substring @Scandy last edited by

                              @Scandy OK, i'm now equipped for pi 2 scart through GPIO. Advmame 3.1-rc sound is fuzzy sometimes (like when a vinyl was turning too fast), i didn't get this behaviour on normal HDMI. Dunno how to check the resolution change, but i'm not sure it happens.

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                              Scandy 1 Reply Last reply Reply Quote 0
                              • n3o_c59
                                n3o_c59 last edited by n3o_c59

                                Salut les gars, j'ai un petit soucis après avoir suivi le poste, mon écran n'est pas complet comme sur les photos..J'ai créé un fichier cfg pour chaque console mais je n'arrive pas à aller plus loin avec le viewport. Un peu comme s'il manquait une partie de mon écran.
                                Une idée ?
                                0_1482260982264__20161220_195837.JPG
                                0_1482260383465__20161220_195931.JPG

                                C'est comme ça pour toutes les consoles mais pas pour émulationstation.

                                Merci !

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                                • Substring
                                  Substring @n3o_c59 last edited by

                                  @n3o_c59 question bete : si tu utilises raspi2png tu vois bien ce qu'il manque ou non ? Sinon diminuer la taille de la zone visible

                                  Former dev - Please reply with @substring so that i am notified when you answer me
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                                  • Scandy
                                    Scandy @Substring last edited by Scandy

                                    @Substring I had this issue also on AdvanceMAME 3.0 with HDMI and Composite, and Andrea fixed it. I suppose he is aware of this strange behavior, and probably he will fix it after the holidays.

                                    Meantime, try to set in advmame.rc the value sync_resample emulation, it worked for me as workaround.

                                    P.S. Speaking of resolution on RPi, we should follow (and also support) this interesting request.

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                                    • haricot
                                      haricot last edited by

                                      Bonjour à tous et déja un grand merci pour les informations fournis pour ces foutus mode vidéo.

                                      Je me suis lancé dans la destruction/reconversion d'une SNES ( carte mere PPU-1 HS ).
                                      J'avais un pi qui trainais dans un placard et je me suis dis qu'il serait intelligent qu'il rende hommage à ces ancêtres.
                                      ... Sort ton fer à souder , attaque le GPIO , découpe la carte mere pour faire rentrer le PI ( oui l'idée au départ c'est de faire plus vrai que vrai: tout garder , manettes - peritel et meme l'adaptateur 9V).

                                      Après quelques recherches , je solve les controleurs et m'attaque à la vidéo.

                                      Et la les choses se compliquent...
                                      Je commande un HDMI/VGA , vérifie qu'il fonctionne sur mon moniteur, vérifie qu'il fonctionne en 240p ( via le mode 8 ) sur la télé.
                                      je met un mode custom ... et la plus rien .... le Pi ne passe plus le boot oO...
                                      je sors la carte SD , modifie le config.txt avec la sauvegarde 240p et ca remarche nikel sur la télé ( enfin nikel si on aime les bordures de 6 cm de tous les cotés 😄 )
                                      remet un autre HDMI_configs donné sur le topic ... et pareil .. plus de boot ...

                                      voici le passage du config qui ne passe pas du tout :

                                      hdmi_cvt=1920 240 60 1 1 0 0
                                      ou meme
                                      hdmi_timings=320 1 20 29 35 224 1 10 14 16 0 0 0 60 0 6400000 1 # 320:224 Sega Genesis (NTSC)

                                      bloque le pi..
                                      Si quelqu'un a une idée , je suis preneur.
                                      Bien le merci,
                                      Stéphane.

                                      archimage Scandy 2 Replies Last reply Reply Quote 0
                                      • archimage
                                        archimage @haricot last edited by

                                        @haricot voici un extrait de mon tuto express :

                                        dans config.txt vérifie que tu as bien ces lignes

                                        hdmi_cvt=1920 240 60 1 1 0 0
                                        hdmi_disable_edid=0xa5000080
                                        hdmi_pixel_encoding=2
                                        avoid_safe_mode=1
                                        disable_overscan=0
                                        hdmi_drive=2
                                        hdmi_group=1
                                        hdmi_mode=6
                                        hdmi_force=1

                                        le mode 6 doit être activé pour emulationstation, non le mode 8 ensuite il faut que le mode 87 soit défini dans la résolution de Retroarch comme écrit plus haut...

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                                        • Scandy
                                          Scandy @haricot last edited by Scandy

                                          @haricot @archimage I have the same issue with my Lindy HDMI > VGA Adapter.
                                          No problems with a "standard" 240p@60hz resolution but I can't set any custom video mode in config.txt.
                                          For the same reason I don't get native games resolution in AdvMAME.
                                          I'll check these settings too... thanks!

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                                          • haricot
                                            haricot last edited by

                                            Bon , les choses avancent...
                                            En fait , j'avais commencé avec ton Tuto ( Poste 158 pour ceux qui cherchent dans ce topic ...) qui m'avait donné beaucoup d'espoirs ...
                                            Mais je n'avais pas testé le mode 87 sous les ému (la fleme de modifier les fichiers de config).
                                            J'avais juste mis un mode personnalisé au démarrage pour tester ( remplacer le hdmi_mode=6 par =87) et la ça plantais direct.
                                            Bizarrement , si le mode est basculé en cours par ES station ca fonctionne.
                                            J'ai poussé les test et effectivement , les modes personnalisé ne marche pas au démarrage , mais bien en cours...
                                            Peut etre que le Convertisseur HDMI/VGA demande d'abord d'avoir été initialisé ??

                                            J'ai utilisé les timming de ce site : sommerp Rpi Arcade . Pardon si c'est déja posté ici

                                            Encore merci pour toutes les infos . je peux refermer ma SNES ....

                                            Et joyeuses fêtes ,
                                            Stéphane.

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