Difference between revisions of "IoTGateway/BSP/Android/Gettingstarted/How to set Multi-display for rk"

From ESS-WIKI
Jump to: navigation, search
Line 1: Line 1:
−
== <span style="color:#0070c0">HDMI(4K) and VGA(edp)</span> ==
+
<h2> <span style="color:#0070c0">HDMI(4K) and VGA(edp)</span> </h2>
−
 
+
<p>&#160;This is the default display mode，To set the display_mode environment variable as the default value
−
&nbsp;This is the default display mode，To set the display_mode environment variable as the default value
+
</p><p>&#160;Power on, stop at the uboot stage：
−
 
+
</p>
−
&nbsp;Power on, stop at the uboot stage：
+
<pre class="_fck_mw_lspace">rkboot # setenv display_mode
−
 
+
rkboot # saveenv
−
rkboot # setenv display_mode
+
rkboot # reset
−
rkboot # saveenv
+
</pre>
−
rkboot # reset
+
<h2> <span style="color:#0070c0">HDMI(4K) and LVDS</span> </h2>
−
 
+
<p>&#160;Power on, stop at the uboot stage：
−
== <span style="color:#0070c0">HDMI(4K) and LVDS</span> ==
+
</p>
−
 
+
<pre class="_fck_mw_lspace">rkboot # setenv display_mode lvds_800x480
−
&nbsp;Power on, stop at the uboot stage：
+
rkboot # saveenv
−
 
+
rkboot # reset
−
rkboot # setenv display_mode lvds_800x480
+
</pre>
−
rkboot # saveenv
+
<p>display_mode is optional&#160;: lvds_1024x768, dual_lvds_1920x1080
−
rkboot # reset
+
</p>
−
 
+
<h2> <span style="color:#0070c0">LVDS and VGA(edp)</span> </h2>
−
display_mode is optional&nbsp;: lvds_1024x768, dual_lvds_1920x1080
+
<p>&#160;Power on, stop at the uboot stage：
−
 
+
</p>
−
== <span style="color:#0070c0">LVDS and VGA(edp)</span> ==
+
<pre class="_fck_mw_lspace">rkboot # setenv display_mode dual_lcd
−
 
+
rkboot # setenv dual_lcd_screen0 edp_1024x768
−
&nbsp;Power on, stop at the uboot stage：
+
rkboot # setenv dual_lcd_screen1 lvds_800x480
−
 
+
rkboot # saveenv
−
rkboot # setenv display_mode dual_lcd
+
rkboot # reset
−
rkboot # setenv dual_lcd_screen0 edp_1024x768
+
</pre>
−
rkboot # setenv dual_lcd_screen1 lvds_800x480
+
<p>dual_lcd_screen0 and dual_lcd_screen1 is optional and Only when display_mode set to dual_lcd is available
−
rkboot # saveenv
+
</p><p>Also set "persist.htg.force" to 1 at build.prop
−
rkboot # reset
+
</p><p>&#160;Power on,：
−
 
+
</p>
−
dual_lcd_screen0 and dual_lcd_screen1 is optional and Only when display_mode set to dual_lcd is available
+
<pre class="_fck_mw_lspace">shell@rsb4680:/ $ su
−
 
+
root@rsb4680:/ # setprop persist.htg.force 1
−
Also set "persist.htg.force" to 1 at build.prop
+
root@rsb4680:/ # reboot
−
 
+
</pre>
−
&nbsp;Power on,：
 
−
 
 
−
shell@rsb4680:/ $ su
 
−
root@rsb4680:/ # setprop persist.htg.force 1
 
−
root@rsb4680:/ # reboot
 

Revision as of 04:37, 28 May 2018

HDMI(4K) and VGA(edp)

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

 Power on, stop at the uboot stage： 

rkboot # setenv display_mode
rkboot # saveenv
rkboot # reset

HDMI(4K) and LVDS

 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

LVDS and VGA(edp)

 Power on, stop at the uboot stage： 

rkboot # setenv display_mode dual_lcd
rkboot # setenv dual_lcd_screen0 edp_1024x768
rkboot # setenv 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

Also set "persist.htg.force" to 1 at build.prop

 Power on,： 

shell@rsb4680:/ $ su
root@rsb4680:/ # setprop persist.htg.force 1
root@rsb4680:/ # reboot
Retrieved from "https://ess-wiki.advantech.com.tw/wiki/index.php?title=IoTGateway/BSP/Android/Gettingstarted/How_to_set_Multi-display_for_rk&oldid=11897"