My info-beamer digital signage software can do that. I've just tested playing two 4K30 HEVC videos side by side while using 4K60 output on both HDMI ports. There's no frame drops when scheduling intermission images between video playback. Without those, the Pi would need to decode four 4K videos while playing two sets and preloading the next set, which is a bit excessive and results in a few dropped frames.
Dual 4K is something I wanted to implement a while, so I took this as an opportunity to finally add it. Main problem is that my software uses a GL surface for image rendering and those are limited to 4096x4096 pixels. When using Dual 4K, the whole canvas across both displays is 7680x2160 which exceeds that. So now I scale down as needed. Videos can avoid these limits if they render as DRM planes, which my software tries to do.
Download the testing release or install via rpi image or the built-in network installer via Freemium and paid-for OS -> Digital Signage OS -> info-beamer > info-beamer OS (testing). Once installed upload your videos and install this package by clicking the "Run on info-beamer" button.
Create a setup based on that package and configure it like this:
Then register the device and open its configuration editor and select dual 4K output:
After saving the device will reboot into dual 4K mode. Then assign the setup and it will download your video(s). Once that's done they should play across both displays which you can also check on the device page:
Dual 4K is something I wanted to implement a while, so I took this as an opportunity to finally add it. Main problem is that my software uses a GL surface for image rendering and those are limited to 4096x4096 pixels. When using Dual 4K, the whole canvas across both displays is 7680x2160 which exceeds that. So now I scale down as needed. Videos can avoid these limits if they render as DRM planes, which my software tries to do.
Download the testing release or install via rpi image or the built-in network installer via Freemium and paid-for OS -> Digital Signage OS -> info-beamer > info-beamer OS (testing). Once installed upload your videos and install this package by clicking the "Run on info-beamer" button.
Create a setup based on that package and configure it like this:
Statistics: Posted by dividuum — Thu May 29, 2025 11:13 pm