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orangepi rk3399 HDMI is not primary display and low resolution.

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Post time 2019-9-30 09:02:00 | Show all posts |Read mode
Hello
I have two orangepi rk 3399.... one is dead... anyway...  I use android binary and

I only use HDMI output...    I use orangepi rk 3399 with monitor.

my question is
1. orangepi rk3399 first display is LCD0 ... but I only use HDMI.  HDMI is not PRIMARY display.
    and orangepi rk3399 only show kernel logo in PRIMARY DISPLAY.
    - How to change Primary display  (LCD to HDMI)

2. HOW to change u-boot logo and kernel logo.

3. And HDMI output problem... when boot android... only select HD output for HDMI...
    How to support 4K out in HDMI?
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