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Change Resolution
#1
Hi, I have a question.

I want to change resolution 1024*768 because I use 1024*768 touch display.

when I turned on the board installed Android 7.1 on this display, It was not showing the booting flow, and  showing the message "out of range". When using another display 1920*1080(FullHD), It is working well. 

I need to change default resolution settings before making OS img file. 

What do I change for changing default resolution at AOSP source?

Help me plz.
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#2
Hi Junseok,

Change resolution to 1024x768 60FPS can following below steps:

(1) su
(2) setprop persist.sys.resolution.main 1024x768@60
(3) setprop sys.display.timeline 1
(4) stop
(5) start

P.S. every time set resolution sys.display.timeline need to plus 1

Thank you for your question, as our new forum is online now, if you have any further questions, please join us on the new site.
https://tinker-board.asus.com/forum/
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#3
nice one.. ;-]..

always wanted to know this...

did google search for "sys.display.timeline" and first link was...
FAQs — Firefly Wiki - T-firefly
How to adjust HDMI output resolution?
... 
Use command below to switch 4K resoultion and flash screen:
Code:
# 4k60:
setprop persist.sys.resolution.main 3840x2160@60
# Set sys.display.timeline base on the default num to plus one for updating resolution
setprop sys.display.timeline 1

also found this link...
https://blog.csdn.net/qq_30624591/articl.../100137545

has.. some interesting info...
Code:
adb shell cat /sys/class/drm/card0-HDMI-A-1/modes
adb shell cat /d/dri/0/summary
adb shell cat /d/dw-hdmi/status
adb shell cat /sys/class/switch/hdmi/state
& more..

many thanks Tinker Board... ]]].....
----------------
k,
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