Advantech RSB-3710, User Manual

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RSB-3710 User Manual 36
3.7.2 HDMI Audio
When the HDMI monitor supports audio, the default output is from both HDMI and
onboard audio codec.
3.8 Multi-display
RSB-3710 supports 3 x display ports — eDP, LVDS (mipi to LVDS), and HDMI. Only
two ports can function at the same time.
Supported Default Displays:
NOTE:
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/{LCD -
NAME}.dtsi" like:
lvds_g070vw01: lvds-g070vw01
2. If there is no configuration, you will get default setting:
hdmi-default and lvds-g070vw01 as default setting.
3. Check your configuration in Terminal or debug console.
cat /proc/cmdline
... prmry_screen=hdmi-default extend_screen=edp-1920x1080
3.8.1 Enter U-boot Interrupt Mode
Connect device to the debug port, and open the debug console.
Press “ctrl + c” keys before powering the device on until you receive the following
information on the debug console:
Once finished you can input the following commands to configure Multi-Display.
3.8.2 eDP and HDMI
1. To set eDP as main display: set in u-boot as shown below:
2. To set HDMI as main display: set in u-boot as shown below:
Port RSB3710
edp
edp-1920x1080
edp-1366x768
lvds
lvds-g070vw01
lvds-g150xgel05
lvds-g215hvn01
hdmi hdmi-default
Hit any key to stop autoboot: 0
=> <INTERRUPT>
=>
setenv prmry_screen edp-1920x1080
setenv extend_screen hdmi-default
saveenv
reset
setenv prmry_screen hdmi-default
setenv extend_screen edp-1920x1080
saveenv
reset