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RK 3288 Reload 4K/1440p output/input questions

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Posted at 6/14/2017 19:25:34     
Last edited by hanban In 6/14/2017 20:53 Editor

Hello, I want to know 2 things:

1) If I connect a 2560x1440p or a 4K monitor to firefly RK 3288 Reload, I can see maximum 1080p resolution in android settings. I cant set it to higher?

2) Can the HDMI INPUT recieve and display 4K video? or for HDMI INPUT is it's max 1080p.

I read on forum that for 4k I need to dsiable dual display.. can anyone tell me how to do it? do I need to build kernel or trhere is a ready firmware for this. If it's possible can you make a custom firmware witrh dual display diasbled and put on the google cloud? would help very much.

thanks!

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Posted at 6/15/2017 10:03:48     
Hi
1 the max resolution of  HDMI IN is 1080P.
2 4K display , there is no such a firmware for you , you need rebuild the kernel with the modification like this:
diff --git a/kernel/arch/arm/boot/dts/firefly-rk3288-reload.dts b/kernel/arch/arm/boot/dts/firefly-rk3288-reload.dts
index 2159526..1a428b5 100644
--- a/kernel/arch/arm/boot/dts/firefly-rk3288-reload.dts
+++ b/kernel/arch/arm/boot/dts/firefly-rk3288-reload.dts
@@ -187,7 +187,7 @@
         hpd-gpio = <&gpio4 GPIO_D3 GPIO_ACTIVE_HIGH>;
                rockchip,source = <0>; //0: LCDC0; 1: LCDC1
                rockchip,prop = <PRMRY>;//<PRMRY>;//<EXTEND>
-               status = "okay";
+               status = "disabled";
     };
};
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Posted at 6/15/2017 16:54:41     
Last edited by hanban In 6/15/2017 19:37 Editor

Isle, thanks for sharing the firmware for it in the other thread!

Are there any plans to release a firefly like the RK3288 Reload with 4K HDMI INPUT?

In general , If I need to connecct a 4K video camera to the HDMI INPUT, and send it to OUTPUT, is there any android box solution sold today that will allow me to do it?

I would order it right away.


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Posted at 6/15/2017 17:05:55     
Last edited by hanban In 6/15/2017 17:30 Editor

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Posted at 6/16/2017 10:43:06     
Sorry ,No plans.
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