HDMI

[jiyong]

@GloriousCoffee, looking at the math, if we add up your built in screen and external screen horizantal sizes, 1920 + 2560 = 4480.

I sumrise from this, that it's not possible to use a combonation of screen sizes greater than 4096 in either X or Y directions. So if your built in display is 1920 across, (which it is for our Pinebook Pros), and you want to use an external display that is 2560 across, it's not supported by the graphics in the Pinebook Pro.

Remember, the SoC is not a high end one, and neither is the built in graphics.

That said, it may be possible to treat your second monitor as a independant X-Windows display. Thus, having it's own 4096 x 4096 limit. It would not allow drag and drop between monitors. I've used such before, but not recently.

Anyone else have thoughts?

If we do "figure it out", and it is a hard limit of combined monitor sizes of 4096 x 4096, we can add that limitation to the Wiki.

I wouldn' t blame it on the SoC.
I have connected a Samsung Chromebook Plus with the same SoC to a 4K TV with the screen on the Chromebook active and that worked fine.
And I assume it really was in 4K, as the mouse pointer felt like moving very slow, as 4K is much more surface.
The limitation is in the software, not the hardware.