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    Display Port Output Lenovo Thinkpad T420S

    Recalbox General
    display port output lenovo thinkpad t420s
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    • radiskull
      radiskull last edited by

      Hi community,

      First of all thank you for your work. Installation on my spare Lenovo Thinkpad T420S was a breeze and everything works...except plugging it into my TV using a Display Port to HDMI Cable 😉

      Observed behavior:

      • Plug in T420S, TV registers HDMI connection
      • Boot System
      • TV recognizes T420S, starts to display boot process
      • Integrated display shows boot process
      • Integrated display and TV show different Recalbox boot videos
      • Integrated display jumps into ES, TV goes blank

      When I connect via SSH xrandr --lsitmonitors only shows one monitor.

      I wanted to set the screen and preferred resolution in recalbox.conf. Do you have any tips for me how to get this solved or where to investigate this further?

      Regards
      radi

      Zing 1 Reply Last reply Reply Quote 0
      • Zing
        Zing Global moderator Translator @radiskull last edited by

        @radiskull Read this:

        • https://recalbox.gitbook.io/documentation/tutorials/video/display-configuration/configure-an-external-display-x86-x86_64
        • https://forum.recalbox.com/topic/23355/show-recalbox-running-on-dell-e6420-laptop-to-projector-tv-using-hdmi

        Se a minha resposta foi útil, por favor, dê um voto positivo, clicando na seta para cima logo abaixo da resposta, ao lado de "citar".
        If my answer was helpful, please give a positive feedback by clicking the up arrow below the answer, next to "quote".

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        • radiskull
          radiskull last edited by

          @Zing: I just saw your post, thanks for the hint. Amazing how fast you get help in this community!

          I tried some configurations using xrandr today and got it somehow to work.

          I used display HDMI1 and set it to "preferred" mode. I then got an output on my TV (ES UI). However, it got only displayed in about 2 third of the screen (upper left corner, rest of screen is black).

          When I start a game though, it is displayed on the whole screen.

          Are there any additional configurations to "scale" ES UI?

          Additional Info: Got the same result when connecting to a LCD display.

          Zing 1 Reply Last reply Reply Quote 0
          • Zing
            Zing Global moderator Translator @radiskull last edited by

            @radiskull I think this is what you are looking for:

            • https://recalbox.gitbook.io/documentation/tutorials/video/display-configuration/complete-guide-on-video-configuration
            • https://recalbox.gitbook.io/documentation/tutorials/video/display-configuration/adjusting-the-image-size-using-overscan

            Se a minha resposta foi útil, por favor, dê um voto positivo, clicando na seta para cima logo abaixo da resposta, ao lado de "citar".
            If my answer was helpful, please give a positive feedback by clicking the up arrow below the answer, next to "quote".

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            • radiskull
              radiskull last edited by

              Thank you for your help.

              As I said I tested a few settings with xrandr the other day and ran into the problems described above.

              Today I wanted to proceed and started out with setting the external display settings in recalbox.conf. After reboot everything works now.

              I wonder why the behavior was different when setting the same modes on my TV with xrandr.

              Anyhow, works perfectly now! Now I can finally dive into some oldschool Gaming 😉

              1 Reply Last reply Reply Quote 1
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