hdmi + mipi dsi lcd dual display

liyu1 · ‎09-11-2014

Hello everyone, I encountered a trouble!
I want to achieve mipi lcd and hdmi displayed simultaneously, but seeing the results as shown below

Ipu channel my configuration is as follows:

static struct mipi_dsi_platform_data mipi_dsi_pdata = {

.ipu_id = 1,

.disp_id = 1,

.lcd_panel = "TRULY-WVGA",

.reset = mx6_reset_mipi_dsi,

.lcd_power = mx6_lcd_power_mipi_dsi,

.backlight_power = mx6_backlight_power_mipi_dsi,

};

static struct fsl_mxc_hdmi_platform_data hdmi_data = {

.init = hdmi_init,

.enable_pins = hdmi_enable_ddc_pin,

.disable_pins = hdmi_disable_ddc_pin,

};

static struct fsl_mxc_hdmi_core_platform_data hdmi_core_data = {

.ipu_id = 0,

.disp_id = 0,

};

static struct fsl_mxc_lcd_platform_data lcdif_data = {

.ipu_id = 0,

.disp_id = 0,

.default_ifmt = IPU_PIX_FMT_RGB24,

};

static struct fsl_mxc_ldb_platform_data ldb_data = {

.ipu_id = 0,

.disp_id = 1,

.ext_ref = 1,

.mode = LDB_SPL_DI0,

.sec_ipu_id = 0,

.sec_disp_id = 0 ,

};

imx6q_add_mipi_dsi(&mipi_dsi_pdata);

// imx6q_add_lcdif(&lcdif_data);

/*lvds display register platfrom data*/

// imx6q_add_ldb(&ldb_data);

imx6q_add_v4l2_output(0);

My kernel　cmdline is as follows:

BOARD_KERNEL_CMDLINE := console=ttymxc0,115200 init=/init video=mxcfb0:dev=mipi_dsi,TRULY-WVGA,if=RGB24,bpp=32 video=mxcfb1:dev=hdmi,1920x1080M@60,bpp=32 video=mxcfb2:off vmalloc=450M androidboot.console=ttymxc0 androidboot.hardware=freescale

please tell how to solve !!

qiang_li-mpu_se · ‎09-16-2014

Hi li yu, you can add "setprop hwc.g2d.blit false" in init.rc to avoid this issue.

View solution in original post

liyu1 · ‎09-16-2014

Thanks !

qiang_li-mpu_se · ‎09-16-2014

Hi li yu, you can add "setprop hwc.g2d.blit false" in init.rc to avoid this issue.

liyu1 · ‎09-19-2014

Hi :

Qiang Li ,

Currently lvds primary screen, hdmi as a second screen, because my lvds screen is not 1080P resolution, it will lead to

hdmi display only the middle region,

Is there any way to make hdmi as the main screen, lvds as a second screen,

Now my uboot environment variables
mxcfb0: dev = hdmi, 1920x1080P60, bpp = 32 mxcfb1: dev = ldb, 1024x768P60, bpp = 32 ,

lvds to display properly, but the kernel will complain hdmi

，as is the kernel print information

age+0x20/0x1b4) from [<c0057820>] (dma_free_coherent+0x144/0x1d0)

[<c0057820>] (dma_free_coherent+0x144/0x1d0) from [<c02fb248>] (mxcfb_set_par+0x55c/0x824)

[<c02fb248>] (mxcfb_set_par+0x55c/0x824) from [<c02e9d0c>] (fb_set_var+0x124/0x290)

[<c02e9d0c>] (fb_set_var+0x124/0x290) from [<c02ea184>] (do_fb_ioctl+0x30c/0x5d0)

[<c02ea184>] (do_fb_ioctl+0x30c/0x5d0) from [<c013f1c4>] (do_vfs_ioctl+0x80/0x54c)

[<c013f1c4>] (do_vfs_ioctl+0x80/0x54c) from [<c013f6c8>] (sys_ioctl+0x38/0x5c)

[<c013f6c8>] (sys_ioctl+0x38/0x5c) from [<c004c940>] (ret_fast_syscall+0x0/0x30)

BUG: Bad page state in process SurfaceFlinger pfn:27b2d

page:c0e035a0 count:0 mapcount:0 mapping: (null) index:0x0

page flags: 0x40000400(reserved)

[<c0054064>] (unwind_backtrace+0x0/0x138) from [<c00fcd30>] (bad_page+0xa4/0x104)

[<c00fcd30>] (bad_page+0xa4/0x104) from [<c00fce90>] (free_pages_prepare+0x100/0x188)

[<c00fce90>] (free_pages_prepare+0x100/0x188) from [<c00fe8b8>] (free_hot_cold_page+0x20/0x1b4)

[<c00fe8b8>] (free_hot_cold_page+0x20/0x1b4) from [<c0057820>] (dma_free_coherent+0x144/0x1d0)

[<c0057820>] (dma_free_coherent+0x144/0x1d0) from [<c02fb248>] (mxcfb_set_par+0x55c/0x824)

[<c02fb248>] (mxcfb_set_par+0x55c/0x824) from [<c02e9d0c>] (fb_set_var+0x124/0x290)

[<c02e9d0c>] (fb_set_var+0x124/0x290) from [<c02ea184>] (do_fb_ioctl+0x30c/0x5d0)

[<c02ea184>] (do_fb_ioctl+0x30c/0x5d0) from [<c013f1c4>] (do_vfs_ioctl+0x80/0x54c)

[<c013f1c4>] (do_vfs_ioctl+0x80/0x54c) from [<c013f6c8>] (sys_ioctl+0x38/0x5c)

[<c013f6c8>] (sys_ioctl+0x38/0x5c) from [<c004c940>] (ret_fast_syscall+0x0/0x30)

BUG: Bad page state in process SurfaceFlinger pfn:27b2e

page:c0e035c0 count:0 mapcount:0 mapping: (null) index:0x0