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    Can´t rotate my display

    Scheduled Pinned Locked Moved Solved Troubleshooting
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    • K Offline
      Klinge
      last edited by

      I have just reinstalled my MMM. Everything is fine except the last step.

      I am trying to rotate my display 90 degrees clockwise. To do this, I have added

      /boot/firmware/config.txt
      

      I commented out the line following line

      # dtoverlay=vc4-kms-v3d
      

      and added the line

      display_hdmi_rotate=1 
      

      underneath

      But by commenting the line out, the Raspi no longer starts correctly. Only a black screen appears.

      The operating system is already started. I can still access it via SSH. But I can see only a black screen.

      As soon as I uncomment the line

      dtoverlay=vc4-kms-v3d
      

      again, the Raspi starts correctly. But then the screen is not rotated, even though I have not deleted the line

      display_hdmi_rotate=1
      

      It would be great if you could help me again.

      Than in advance
      Klinge

      S 1 Reply Last reply Reply Quote 0
      • S Offline
        sdetweil @Klinge
        last edited by

        @Klinge which version of the OS did you install??

        with the Wayland compositor
        or the latest with the LabWC compositor

        they are different on how to rotate than the old X11

        Sam

        How to add modules

        learning how to use browser developers window for css changes

        K 1 Reply Last reply Reply Quote 0
        • K Offline
          Klinge @sdetweil
          last edited by

          @sdetweil I use

          Raspberry Pi OS with desktop
          Release date: November 19th 2024
          System: 64-bit
          Kernel version: 6.6
          Debian version: 12 (bookworm)

          and a Raspberry 3 Model b+

          S 1 Reply Last reply Reply Quote 1
          • S Offline
            sdetweil @Klinge
            last edited by

            @Klinge ok, do

            ps -ef | grep labwc
            

            i think it will return the labwc compositor process info

            Sam

            How to add modules

            learning how to use browser developers window for css changes

            K 1 Reply Last reply Reply Quote 0
            • K Offline
              Klinge @sdetweil
              last edited by

              @sdetweil I got the following infos

              pi@raspi-mm-bad:~ $ ps -ef | grep labwc
              pi           645     619 42 16:50 ?        00:35:55 /usr/bin/labwc -m
              pi           714     645  0 16:50 ?        00:00:00 /usr/bin/ssh-agent /usr/bin/labwc-pi
              pi         33729   32904 25 18:15 pts/0    00:00:00 grep --color=auto labwc
              
              
              S 1 Reply Last reply Reply Quote 0
              • S Offline
                sdetweil @Klinge
                last edited by

                @Klinge if you use the os desktop menu top left, preferences, last entry i think is display configuration, you can rotate there

                Sam

                How to add modules

                learning how to use browser developers window for css changes

                K R 2 Replies Last reply Reply Quote 1
                • K Offline
                  Klinge @sdetweil
                  last edited by

                  @sdetweil Oh! So simple? It is like at Windows. Only with mouse configuration. I found it under Screen configuration - > orientation
                  Thank you again for your help. You are my little hero 😉

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                  • K Klinge has marked this topic as solved on
                  • R Offline
                    robertybob @sdetweil
                    last edited by

                    @sdetweil Is it still possible to rotate the screen via the command line? Or must it be done using the desktop? (having the same issue, with the same labwc output, so thought best not to start a new topic)

                    S R 3 Replies Last reply Reply Quote 0
                    • S Offline
                      sdetweil @robertybob
                      last edited by

                      @robertybob i do not know

                      Sam

                      How to add modules

                      learning how to use browser developers window for css changes

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                      • S Offline
                        sdetweil @robertybob
                        last edited by sdetweil

                        @robertybob google search found this

                        
                        To rotate the display using the command line on a Raspberry Pi with the LabWC compositor, you can use the wlr-randr command, specifying the output and desired rotation (e.g., wlr-randr --output HDMI-A-1 --rotate right). 
                        Here's a more detailed breakdown:
                        1. Identify your output:
                        Determine the name of your display output. You can find this using wlr-randr without any arguments, which will list the available outputs.
                        Example: wlr-randr
                        Look for an output like HDMI-A-1 or DSI-0. 
                        2. Rotate the display:
                        Use the wlr-randr command with the --output and --rotate options.
                        Example (rotate 90 degrees clockwise): wlr-randr --output HDMI-A-1 --rotate right
                        Example (rotate 90 degrees counter-clockwise): wlr-randr --output HDMI-A-1 --rotate left
                        Example (rotate 180 degrees): wlr-randr --output HDMI-A-1 --rotate 180
                        Example (rotate to normal orientation): wlr-randr --output HDMI-A-1 --rotate normal 
                        3. Make the rotation permanent (optional):
                        You can add the wlr-randr command to an autostart file to make the rotation persistent after a reboot.
                        Find the autostart file: ~/.config/labwc/autostart
                        Add your command: Open the file in a text editor (e.g., nano ~/.config/labwc/autostart) and add the wlr-randr command at the end of the file.
                        Example: @wlr-randr --output HDMI-A-1 --rotate right
                        Note: The @ symbol is important for autostart scripts. 
                        4. Troubleshooting:
                        

                        Sam

                        How to add modules

                        learning how to use browser developers window for css changes

                        R 1 Reply Last reply Reply Quote 0
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