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No VGA output  in Android JB 4.2.2 recovery mode

Question asked by yasin guo on Nov 2, 2014

Hi,

my imx6q board is a reference to sabresd.

I am trying to do android recovery mode in my imx6q board.when display by LVDS,it's no problem.But when i display by VGA,display nothing,But recovery is succeed.

Below is my U-boot bootargs:

setenv bootargs console=ttymxc0,115200 androidboot.console=ttymxc0 vmalloc=400M init=/init video_mode=extension video=mxcfb0:dev=lcd,1024x768M@60,bpp=32 androidboot.hardware=freescale

I find this link:Sabresd board : No HDMI output  in Android JB 4.2.2 recovery mode I modify the bpp to 16,but my VGA display is incorrect in normal mode.and recovery is nodisplay too.

recently ,I fond follow code:

recovery/minui/Android.mk:

ifeq ($(TARGET_RECOVERY_PIXEL_FORMAT),"RGBX_8888")

  LOCAL_CFLAGS += -DRECOVERY_RGBX

endif

ifeq ($(TARGET_RECOVERY_PIXEL_FORMAT),"BGRA_8888")

  LOCAL_CFLAGS += -DRECOVERY_BGRA

endif

 

I modify my BoardConfig.mk.Whether to add TARGET_RECOVERY_PIXEL_FORMAT := "RGBX_8888" or TARGET_RECOVERY_PIXEL_FORMAT :="BGRA_8888",

VGA is not display,too.

Please give me some advice to fixed this issure,Thanks.

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