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    Raspberry Pi 3B at 4K UHD in Portrait Mode

    Hardware
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    • K
      kevincaluser last edited by

      Hi guys!
      I bought a 4K UHD screen as a display for my Magic Mirror project. I was able to make my Raspi 3B output a HDMI signal at 3840 x 2160 (15Hz), but it only works in Landscape Mode. When I switch to portrait mode (by adding display_rotate=1 to /boot/config.txt) the Raspberry Pi would not boot up anymore (display rotation however worked at 1920x1080).

      I have seen other people struggle as well, but some have succeeded by making changes to the X Framebuffer. Unfortunately, that has not worked for me.

      So: can anyone share a working configuration for 4K Portrait Mode with a Raspi 3B on Raspbian 9 Stretch?

      Thanks for your help!
      Kevin

      P.S. So far, my /boot/config.txt contains the following video-related commands that I had put together from various sources:

      disable_overscan=1
      
      framebuffer_width=3840
      framebuffer_height=2160
      max_framebuffer_width=3840
      max_framebuffer_height=2160
      
      hdmi_group=2
      hdmi_mode=87
      
      hdmi_ignore_edid=0xa5000080
      hdmi_cvt=3840 2160 15
      
      gpu_mem=256
      
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      • C
        cdelaorden last edited by

        You might want to read this thread

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