Is a 4K MagicMirror possible?

[SSMEX]

I’ve done a lot of Googling on this topic but it doesn’t seem like anyone has documented this at all. What kind of hardware would be needed and does the MagicMirror software support 4K output?

Thanks for the help!

[Mykle1]

@SSMEX

This is not a yes or no answer, but it may be related, as the Pi does output HDMI, as well as other boards.

“Most mid- and high-end TVs are now Ultra HD resolution, with many also supporting HDR. Not surprisingly, cable manufacturers are jumping at the chance to sell new and more expensive “4K” HDMI cables. But guess what – you probably don’t need 4K HDMI cables, because your current ones can likely do 4K just fine.”

https://www.cnet.com/news/4k-hdmi-cables-are-nonsense/

[A Former User]

Impossible with rpi. But other sbc or pc might.

[SSMEX]

@Sean That’s what I figured. There are boards like Rock64 that support 4K output. Do you know how compatible MagicMirror is with such boards and if the MM software itself can output at 4K?

[A Former User]

@SSMEX
I didn’t test it. But Electron itself has ability of using 4k resolution if chromium supports it properly. However I can not confirm anything…
For Magicmirror, its just html, so if electron and chromium(or any other webkit) could handle 4k, Mm could also.

[SSMEX]

@Sean

Thanks for all the feedback on this. I noticed an earlier thread by you regarding MM on the Asus Tinker Board. How has that worked out for you after a few months?

Based on what I’ve read, the Tinker Board supports 4K outputs but can only playback 4K video using their bundled program with hardware acceleration. Since MM is mostly static text and images, does that mean it can drive a 4K display?

[A Former User]

@SSMEX
As i know atb can handle only special video format as 4k. But frankly, I don’t need 4k for mm. And I have no 4k display to test. 4k display is too expensive for mm :)
But I believe if Electron and webkit in device could handle 4k as output, mm could be displayed as 4k. I think there is no reason it coudn’t.

[A Former User]

@SSMEX
I’ve read Electron on windows 10 could hanlde 4k display, that means there is possibility for X-nix system also. You’d better ask to Electron expert communities about this.

[SH20192]

@Sean said in Is a 4K MagicMirror possible?:

Impossible with rpi. But other sbc or pc might.

Sorry to bring an old thread up from the dead but since this came up as the first result when searching on google thought I would reply to it.

4K does appear to be possible on the Pi. Set one up this weekend on a TCL 4K display. Is very stable and works well even with 3 RTSP streams also running on the page. Obviously the font becomes very small with the 4K resolution so had to change font sizes but not too difficult.

[A Former User]

@SH20192
Wow, nice information.
My previous knowledge was from https://elinux.org/RPiconfig
Anyway, I found some others have tried already and got success.

• 2048*1152 : https://www.riscosopen.org/forum/forums/5/topics/2144
• 4K : https://www.raspberrypi.org/forums/viewtopic.php?f=38&t=79330

Anyway 4K display is still too expensive for me to use as MM. :D