# Pi4 Dual screen (mirroring): second goes black with video

**URL:** <https://forums.screenly.io/t/pi4-dual-screen-mirroring-second-goes-black-with-video/1600>\
**Category:** Anthias\
**Created:** [October 2, 2024, 3:55pm UTC](https://forums.screenly.io/t/pi4-dual-screen-mirroring-second-goes-black-with-video/1600 "2024-10-02T15:55:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dcanl](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.screenly.io/dcanl/32/505_2.png) [@dcanl](https://forums.screenly.io/u/dcanl)\
**Post date:** [October 2, 2024, 3:55pm UTC](https://forums.screenly.io/t/pi4-dual-screen-mirroring-second-goes-black-with-video/1600/1 "2024-10-02T15:55:51Z")

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Hello,

I just installed anthias, and I am testing it.

I connected 2 screens on my Raspberry pi 4, with the idea of mirroring the same content on both screen. However, when playing a video, only the screen connected to first HDMI output plays the video.

For other content it seems ok and both screen displays the content.

Is it a hardware limitation? A bug in anthias?

Thak you for your help.

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**Author:** ![nicomiguelino](https://avatars.discourse-cdn.com/v4/letter/n/e56c9b/32.png) [@nicomiguelino](https://forums.screenly.io/u/nicomiguelino)\
**Post date:** [October 2, 2024, 5:39pm UTC](https://forums.screenly.io/t/pi4-dual-screen-mirroring-second-goes-black-with-video/1600/2 "2024-10-02T17:39:25Z")

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@dcanl, Anthias only supports output via the first HDMI port at the moment.  
Feel free to contribute and create a pull request for contributions. I’d be happy to help.