How do I rotate the screen to play portrait video 1080x1920? Raspberry Pi 3 B+ (Raspberry Pi OS Lite 64bit + Anthias v0.20.3)

[caimano]

Hi, i used this yours great suggest:

How do I rotate the screen? Raspberry Pi 4 B (Raspberry Pi OS Lite 32bit)

@leraphu, we’re still in the process of fixing issues, but you can take a look at the following comment from an Anthias GitHub issue. You can try updating /boot/firmware/config.txt, comment out dtoverlay=vc4-fkms-v3d then add: display_hdmi_rotate=1

But:

1. No, when i insert a rotated video the display flickers and then i see the anthias home screen with the ip and logo, and then it loops.
   Yes, If I don’t rotate the display (without display_hdmi_rotate=3) then the videos can be viewed correctly.

2. Yes, when i insert a web page, this works fine in both views.

Maybe a codec or driver issue?