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Title: USBC (DP) to VGA adaptor issue [Print This Page]

Author: RakeshDesai Time: 5/20/2019 23:09
Title: USBC (DP) to VGA adaptor issue
I am using a USBC(DP) to VGA adaptor.

I have plugged in a USBc(DP) to VGA adaptor into the unit.  I now have 2 screens (HDMI and VGA) cloned.

Now when I go into Android Settings / DP / Resolution  - I do not get a complete list of resolutions available?
It simply shows 2  options  Auto and 1920x1080p60.00

The unit should show all resolutions that the adaptor can handle.

I have also tried Leungs dts patch, but still no luck?

I want to use the adaptor with VGA at 1280x1024?

What other files do i need to change.  DTS has patych below

/dts-v1/;
#include "rk3399-firefly-aioc.dtsi"
/ {
model = "Firefly-RK3399 Board BOX (Android)";
compatible = "rockchip,rk3399-firefly-aioc", "rockchip,rk3399";
};

&hdmi_dp_sound {
status = "okay";
};

&route_hdmi {
status = "okay";
logo,mode = "center";
};

&hdmi_in_vopb {
      status = "okay";
};

&hdmi_in_vopl {
status = "disabled";
};

&dp_in_vopb {
      status = "okay";
};

&dp_in_vopl {
      status = "okay";
};

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