View source for IoTGateway/BSP/Android/Gettingstarted/How to set Multi-display for rk

== <span style="color:#0070c0">HDMI(4K) and VGA(edp)</span> ==

&nbsp;This is the default display mode，To set the display_mode environment variable as the default value

&nbsp;Power on, stop at the uboot stage：

 rkboot # setenv display_mode
 rkboot # saveenv
 rkboot # reset

== <span style="color:#0070c0">HDMI(4K) and LVDS</span> ==

&nbsp;Power on, stop at the uboot stage：

 rkboot # setenv display_mode lvds_800x480
 rkboot # saveenv
 rkboot # reset

display_mode is optional : lvds_1024x768, dual_lvds_1920x1080

== <span style="color:#0070c0">LVDS and VGA(edp)</span> ==

&nbsp;Power on, stop at the uboot stage：

 rkboot # setenv display_mode dual_lcd
 rkboot # setenv display_mode dual_lcd_screen0 edp_1024x768
 rkboot # setenv display_mode dual_lcd_screen1 lvds_800x480
 rkboot # saveenv
 rkboot # reset

dual_lcd_screen0 and dual_lcd_screen1 is optional and Only when display_mode set to dual_lcd is available