Screen rotation turns content the same way on every board

From Anthias 2026.07.3, each "Screen rotation" choice turns the picture the same way on every board. "Portrait (90°)" turns it a quarter turn clockwise and "Portrait, inverted (270°)" a quarter turn anticlockwise, and images, web pages, video and streams all turn together.

Before, the direction depended on the board. A 32-bit Raspberry Pi 2 or 3 turned video clockwise for "Portrait (90°)", while a Raspberry Pi 3 running the 64-bit image, a Pi 4, a Pi 5, a PC and generic arm64 boards turned the picture anticlockwise for the same setting.

If you have a portrait screen on a Raspberry Pi 3 running the 64-bit image, a Pi 4, a Pi 5, a PC or a generic arm64 board such as the Rock Pi 4: after upgrading to Anthias 2026.07.3, the picture shows upside down. In the web interface, open Settings and, under "Display & playback", switch "Screen rotation" from "Portrait (90°)" to "Portrait, inverted (270°)", or the other way round. If you set it through the API, swap screen_rotation between 90 and 270. "Landscape (0°)" and "Landscape, inverted (180°)" look the same as before, and a 32-bit Raspberry Pi 2 or 3 needs no change.

Images and web pages on a 32-bit Raspberry Pi 2 or 3

On a Raspberry Pi 2 or 3 running a 32-bit image, only video followed "Screen rotation", as the 2026.05.1 entry that introduced the setting described. Images and web pages stayed upright whatever you picked. From Anthias 2026.07.3 they turn at 90°, 180° and 270°, in the same direction as video.

Rotated video on these boards still played at only a few frames per second in this release. Anthias 2026.07.4 brought 180° up to full speed.

Video on a 64-bit Raspberry Pi 3

On a Raspberry Pi 3 running the 64-bit image (pi3-64), video ignored "Screen rotation" and stayed upright while images and web pages turned. That started when Anthias 2026.07.2 brought hardware video to this board. Video now turns with everything else.

At 180°, video still plays at full frame rate. This board's video hardware can't turn a picture by a quarter, so at 90° and 270° video plays through a software path instead: about 9 to 10 frames per second for 1080p in the project's testing. For portrait video, a Raspberry Pi 4 or 5 is the better board.