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The screen orientation is incorrect after installing Raspberry Pi OS

Raspberry Pi OS Bullseye​

If you notice an erroneous screen orientation after installing Raspberry Pi OS Bullseye, do as follows:

  • Step 1. After flashing Raspberry Pi OS Bullseye to reTerminal eMMC, follow this guide to install the necessary drivers

  • Step 2. Create a new file named monitors.xml under .config directory

sudo vi ~/.config/monitors.xml
  • Step 3. Copy the following content into the above file to explicitly set the LCD display (DSI-1) and save the file by typing :wq after pressing ESC
<monitors version="2">
  <configuration>
    <logicalmonitor>
      <x>0</x>
      <y>0</y>
      <primary>yes</primary>
      <monitor>
        <monitorspec>
          <connector>DSI-1</connector>
          <vendor>unknown</vendor>
          <product>unknown</product>
          <serial>unknown</serial>
        </monitorspec>
        <mode>
          <width>720</width>
          <height>1280</height>
          <rate>60.000</rate>
        </mode>
      </monitor>
      <transform>
        <rotation>right</rotation>
      </transform>
    </logicalmonitor>
  </configuration>
</monitors>
  • Step 4. Open /boot/config.txt
sudo vi /boot/config.txt
  • Step 5. Add the following into the file
dtoverlay=reTerminal,tp_rotate=1
  • Step 6. Reboot reTerminal
sudo reboot

Now the screen will be displayed in the correct orientation on Raspberry Pi OS Bullseye!

Raspberry Pi OS Bookworm​

If you notice an erroneous screen orientation after installing Raspberry Pi OS Bookworm, do as follows:

  • Step 1. After flashing Raspberry Pi OS Bookworm to reTerminal eMMC, follow this guide to install the necessary drivers

If you configured a user other than root, and the Bookworm image from July 24, I found I had to do:

sudo chown $USER ~/.config
sudo chgrp $USER ~/.config
sudo chmod u+rwx ~/.config
  • Step 2. Open .config/wayfire.ini
sudo vi ~/.config/wayfire.ini
  • Step 3. Copy the following content into the above file to explicitly set the LCD display (DSI-1) and save the file by typing :wq after pressing ESC
[output:DSI-1]
mode = 720x1280@60
transform = 270
  • Step 4. Open /boot/config.txt
sudo vi /boot/config.txt
  • Step 5. Add the following into the file
dtoverlay=reTerminal
  • Step 6. Reboot reTerminal
sudo reboot

Now the screen will be displayed in the correct orientation on Raspberry Pi OS Bookworm!

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