Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
   * What was the outcome of this action?
   * What outcome did you expect instead?


*Trying to set up an Option in RetroPie

*Configuration | On Dietpi "bullseye" -> Retropie -> using splashscreen -> with
autostart emulationstation -> using dtoverlay=vc4-kms-v3d or
dtoverlay=vc4-fkms-v3d

*DietPi kernel: v3d fec00000.v3d: MMU error from client CLE (4)
at 0x2121000, pte invalid    ERRORMESSAGE also visible in  "sudo dmesg"

*Booting with splashscreen and autostart Emulationstation

I missed to mention that the whole thing should run on a Raspberry Pi 4B 4GB.
If possible, the severity of the report can be set to “normal” as it is not an acute issue and does not require high prioritization. :D
Thank you.