VAB
VAB
VAB
VAB----800 Android BSP 1.
800 Android BSP 1.
800 Android BSP 1.
800 Android BSP 1.3
3
3
3 User Manual
User Manual
User Manual
User Manual
32
3.3.17.
Display
3.3.17.1.
3.3.17.1.
3.3.17.1.
3.3.17.1.
Auto Detect
Auto Detect
Auto Detect
Auto Detect
In U-Boot, set:
setenv auto_device ‘setenv bootargs console=ttymxc1,115200
auto-detect
’
setenv set_display 'run auto_device'
saveenv
reset
Then OS will detect the device and light it.
If we connect HDMI or HDMI+VGA, OS will light HDMI with 1920 x 1080. If
VGA was connected, OS will light VGA with 1024 x 768.
3.3.17.2.
3.3.17.2.
3.3.17.2.
3.3.17.2.
Dual
Dual
Dual
Dual Display
Display
Display
Display
In U-Boot, set:
setenv dualview 'setenv bootargs ${bootargs} di1_primary
video=mxcdi1fb:GBR24,
VGA-XGA
vga video=mxcdi0fb:RGB24,
1280x720
M@60 hdmi
pmem=64M,64M fbmem=8M gpu_memory=64M'
setenv set_display 'run dualview'
saveenv
Then OS will light VGA and HDMI.
LVDS2+HDMI
setenv dualview ‘
setenv bootargs ${bootargs} di1_primary
video=mxcdi1fb:RGB24,WVGA ldb=di1 video=mxcdi0fb:RGB24,1280x720M@60
hdmi
’
LVDS1 + LVDS2
setenv dualview ‘
setenv bootargs ${bootargs} video=mxcdi0fb:RGB24,WVGA
di0_primary ldb=separate,di=0,di=1,ch0_map=SPWG,ch1_map=SPWG
video=mxcdi1fb:RGB24,WVGA
’
If you light dual LVDS, the system only light the primary device when booting.
You should key-in the following command through COM port to enable
secondary device after booting.
#
setprop rw.SECOND_DISPLAY_CONNECTED 1
VGA+LVDS
Not supported, due to LVDS mode is 800 x 480 and VGA does not include
this mode.
Note:
Note:
Note:
Note:
Known issue of dual display:
-DualView: The resolution of secondary device cannot be more than 720P.
-DualView: Camera will make the screen freeze.
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