I have a tablet with a touch penal and hdmi external output.

When I only use the touch panel, everything is fine

But

But when I plug in the external hdmi panel, the hdmi panel can't be displayed,

and the touch function will be wrong (do not match the touch panel)

 

I think the error is in android.hardware.graphics.composer

This error did not occur in android x86 oreo (Not imported android.hardware.graphics.composer)

 

My touch panel information

Resolution: 800x1280

Interface type: mipi

Touch type: capacitor

 

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