RK3399 DisplaPort no 4K resolution

leung先森

Have you try Android7.1.2 ?

leung先森

fl0wtec Posted at 3/24/2018 02:17
Hi,
can you please post a link where I can get Androi 7.1.2 Firmware image for RK3399?

http://en.t-firefly.com/doc/download/index/id/3.html

leung先森

fl0wtec Posted at 3/24/2018 16:40
Hi,

with Firefly-RK3399_Android7.1.2_MP_180126 image it gets even worse.

need to modify  dts file and complie your kernel and resource.
make the DP connector support vopb.
patch below

&hdmi_in_vopb {
        status = "okay";
};
&hdmi_in_vopl {
        status = "disabled";
};

&dp_in_vopb {
    status = "okay";
};

&dp_in_vopl {
    status = "okay";
};

leung先森

fl0wtec Posted at 3/31/2018 00:56
Dear leung先森,

can you please be more specific and tell us which .dts file exactly needs to be m ...

kernel/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
complie it and flash resource.img and kernel.img

leung先森

iltis-wiesel Posted at 4/27/2018 15:09
Dear Team-Firefly,
we still need the 4k@60Hz DP output.

modif code like #6 said .
If cannot up to the 4K but better than 1080p, it might be speed limited by cable.