View source for RSB-4680 How to Config Multi-Display.


RSB-4680 surport 3 display ports&nbsp;: eDP、LVDS、HDMI .&nbsp;Only two ports work at the same time .

You can config Multi-Display to eDP + HDMI 、eDP + LVDS、LVDS + HDMI .

== Enter U-boot interrupt mode ==

Connect device to debug port, and open debug console. See more&nbsp;: [[How_to_debug|How_to_debug]].

Press&nbsp;"ctrl + c" key before power up the device, until get the following information on debug console&nbsp;:&nbsp;
<pre>Hit any key to stop autoboot: 0
=> <INTERRUPT>
=></pre>

Then you can&nbsp;input the following cammand to config Multi-Display. <!--5f39ae17-8c62-4a45-bc43-b32064c9388a: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-->

== eDP + HDMI ==
<pre>setenv prmry_screen edp-1920x1080
setenv extend_screen hdmi-default
saveenv
reset
</pre>

&nbsp;

== eDP + LVDS ==
<pre>setenv prmry_screen edp-1920x1080
setenv extend_screen lvds-g070vw01
saveenv
reset
</pre>

== LVDS + HDMI ==
<pre>setenv prmry_screen hdmi-default
setenv extend_screen lvds-g070vw01
saveenv
reset
</pre>

== Default Support Display ==

{| border="1" cellpadding="1" cellspacing="1"
|-
| '''Port'''
| '''RSB4680'''
| '''USM110'''
|-
| edp
| edp-1920x1200<br/> edp-1920x1080<br/> edp-1024x768
| edp-1920x1080<br/> edp-1280x720<br/> edp-1024x768<br/> edp-720x480<br/> edp-640x480
|-
| lvds
| lvds-g070vw01<br/> lvds-idk1110wp<br/> lvds-g150xgel05<br/> lvds-g215hvn01<br/> lvds-p460hvn02
| NA
|-
| hdmi
| hdmi-default
| hdmi-default
|}

<br/> '''NOTE&nbsp;:&nbsp;'''

1. The name of the panel must begin with "edp-"、"lvds-" or "hdmi-" .

And it can be found in "kernel/include/dt-bindings/display/screen-timing/{LCDNAME}.dtsi" like&nbsp;:

lvds_g070vw01: '''lvds-g070vw01'''

2. If there is no configuration, you will get default setting&nbsp;:

edp-default (edp-1920x1080) and&nbsp;hdmi-default as default setting.

3. Check your configuration in Terminal or debug console.
<pre>cat /proc/cmdline
... prmry_screen=edp-1920x1080 extend_screen=hdmi-default</pre>