IMX8MM_DVK can't work HDMI-DSI

[satokimiyasu]

We have a board IMX8MMEVK.

My board might be broken at first.
Please let me know that is correct or not.

I made yocto image by ubuntu 16.04 LTS.
I burn image on eMMC by uuu.exe windows bellow.
uuu.exe -d -b emmc_all imx-boot-imx8mmevk-sd.bin fsl-image-qt5-validation-imx-imx8mmevk.rootfs.sdcard

Then I boot with setenv device tree to fdt_file fsl-imx8mm-evk-rm67191.dtb and saveenv.

So boot is fine. I can see console log and fb0 at /sys/class/graphics/ .

Problem:
I can't see display from HDMI-DSI board.
I used FHD monitor.

I found that log from boot.
Console log said 'panel enable failed'
[ 1.349424] imx-drm display-subsystem: bound 32e10000.mipi_dsi (ops imx_sec_dsim_ops)
[ 1.696028] imx_sec_dsim_drv 32e10000.mipi_dsi: wait payload tx done time out
[ 1.696038] panel-raydium-rm67191 32e10000.mipi_dsi.0: [drm:rad_panel_enable] *ERROR* Failed to set tear scanline (-16)
[ 1.696043] imx_sec_dsim_drv 32e10000.mipi_dsi: panel enable failed: -16
[ 1.774535] Console: switching to colour frame buffer device 135x120
[ 1.841875] imx-drm display-subsystem: fb0: frame buffer device
[ 1.848376] [drm] Initialized imx-drm 1.0.0 20120507 for display-subsystem on minor 0

I think working case like this ( It got from other evk board)

[ 1.363981] imx-drm display-subsystem: bound imx-lcdif-crtc.0 (ops lcdif_crtc_ops)
[ 1.371657] imx_sec_dsim_drv 32e10000.mipi_dsi: version number is 0x1060200
[ 1.378797] imx-drm display-subsystem: bound 32e10000.mipi_dsi (ops imx_sec_dsim_ops)
[ 1.550694] Console: switching to colour frame buffer device 240x67
[ 1.588799] imx-drm display-subsystem: fb0: frame buffer device
[ 1.595163] [drm] Initialized imx-drm 1.0.0 20120507 for display-subsystem on minor 0

I have two DSI-HDMI board. But each board is same cable exchange also same.

What your decision my IMX8MMEVK is defective board?
If that is defective product, what should I do?

[satokimiyasu]

Igor-san,
Thank you for answer.
Of corse I try to burn image Android and Yocto by that sample already.
But I never see HDMI out put by any sample image and my build image also.

I want to know your judgement from my log.
But you didn't say about it.
My judgement is that it come from hardware.

It can't communicatie with CSI-HDMI IC, I think. 
So I want to try fix hardware.

If you can't judge it, I should contact to return service.

Best regards,
Sato

[传策薛]

I am debugging a mipi to lvds chip, imx8mini always gives the following error:
[ 1.629370] panel-lt-lt9211 32e10000.mipi_dsi.0: [drm:lt9211_panel_enable] *ERROR* Failed to exit sleep mode (-16)
[ 1.629375] panel-lt-lt9211 32e10000.mipi_dsi.0: [drm:lt9211_panel_enable] *ERROR* lt9211_panel_prepare failed (-16)
[ 1.629379] imx_sec_dsim_drv 32e10000.mipi_dsi: panel enable failed: -16

[li_hong]

Hi 薛：

   I am also porting lt9211 mipi to lvds chip. Can you share your lt9211 drv code and device tree file.

Thank you.

[igorpadykov]

Hi Sato

one can try Demo Images from

i.MX Software | NXP 

also nxp has return service Returns and Warranty Information | NXP 

Best regards
igor
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