Adeneo Embedded i.MX53 Benutzerhandbuch - Seite 15

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720P@60

● Use the following commands in U-Boot:

U-Boot> setenv set_display run hdmi_720p

U-Boot> save

● This will save the environment variables to the SD card. Restart the board and Android

will load.

1080P@60

● Use the following commands in U-Boot:

U-Boot> setenv set_display run hdmi_1080p

U-Boot> save

● This will save the environment variables to the SD card. Restart the board and Android

will load.

Dual display

● UI will be output to both the displays if the secondary is connected to the QSB. The

image in secondary display is resized from the image in the primary display.

● The video will only be rendered on one of the displays. This behavior is specified by

different variables in Android (ro.DUAL_VIDEO_*).

● From Freescale r10.3 documentation (install/imx-android-r10.3/doc/

i.MX_Android_R10.3_User_Guide.html):

There are two ways to play video for dual display case.

● The one is to play video on the secondary display device only and UI is displayed on

both display devices, which is called single video case.

● The other one is to play video on both display devices and UI is shown on the primary

display only, which is called dual video case.

Note that user need to decide which case he or she wants to use before system boots up. It

cannot be changed at run time.

To use single video case, edit init.freescale.rc to this:

setprop ro.SIN_VIDEO_DUAL_UI 1

setprop ro.DUAL_VIDEO_SIN_UI 0

To use dual video case, edit init.freescale.rc to this:

01/29/2012

Adeneo i.MX53 QSB BSP for Android Gingerbread 4.2

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