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3.7.2
HDMI Audio
When HDMI monitor supports audio, the default output is from both HDMI and
onboard audio codec.
3.8
Multi-display
EPC-R3710 supports 3 x display ports: eDP, LVDS (mipi to LVDS), HDMI. Only two
ports work at the same time.
Default Support Display:
Port
edp
lvds
hdmi
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 dp-default 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 debug port, and open debug console.
Press "ctrl + c" key before power up the device, until get the following information on
debug console:
Hit any key to stop autoboot: 0
=> <INTERRUPT>
=>
Then you can input the following command to configure Multi-Display.
3.8.2
eDP and HDMI
1.
eDP is main display, please set in u-boot as below:
setenv prmry_screen edp-1920x1080
setenv extend_screen hdmi-default
saveenv
reset
2.
HDMI is main display, please set in u-boot as below:
setenv prmry_screen hdmi-default
setenv extend_screen edp-1920x1080
saveenv
reset
RSB-3710 User Manual
RSB3710
edp-1920x1080
edp-1366x768
lvds-g070vw01
lvds-g150xgel05
lvds-g215hvn01
hdmi-default
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