MX8-DSI-OLED1 green color overlay

[mglonnro]

Hello, 

I have an MX8-DSI-OLED1 connected to an i.MX8 MEK, and with both Yocto and Android I get green discoloration on (seemingly) exactly half the display. First, I thought this was some kind of configuration/software problem, but now I'm not so sure. Maybe the display is broken?

And all the correct graphics/pixels are there on the "green side" as well, but everything is discolored. I attached an image. 

[YenliangLee]

I  have 3 pcs of MX8-DSI-OLED. All have the same issue as half-green screen.

My environment list as below:

Hardware:  NXP MCIMX8M-EVKB

Firmware: android-11.0.0_2.0.0_image_8mqevk.tar.gz and android-11.0.0_2.6.0_image_8mqevk.tar.gz

I attached abnormal picture for reference.

How can I do？

[Rita_Wang]

Are you using the demo images NXP supply?

[Rita_Wang]

Which version of BSP are you using? It seems that the system work well on your screen.

[mglonnro]

Cheers, 

I've tried: 

• L5.10.72_2.2.0_MX8QM with fdt_file=imx8qm-mek-dsi-rm67191.dtb
• Android 11.0.0_1.0.0_DEMO_8Q with -d mipi-panel
• Built from source Android 11.0.0_2.6.0 (Linux 5.10.72 kernel), also with -d mipi-panel when creating the image.

All show the same color error.

[Rita_Wang]

It seem that the system work well, and the screen is broken.

So you can apply to change to one new screen to try.

[mglonnro]

Yes, I think so. I sent an RMA to the distributor and will reply with updates to this thread. 

Attached is a picture of the Android half-green screen as a curiosity

[zwj]

Hi mglonnro

   We also encountered the same problem. Did you solve it later?

[ruben_charles]

Hi @zwj ,

Please verify if your panel has a back sticker or legend with MX8-DSI-OLED1A part number. The OLED1A is a new revision of the display and it should be supported by an rm67199 device tree.  I have used this new panel with our Linux BSP and that solved the green screen issue.   Example below:

https://source.codeaurora.org/external/imx/linux-imx/tree/arch/arm64/boot/dts/freescale/imx8mq-evk-d...

Cheers,

[zwj]

  Thank you very much. before we think the displayscreen had been  damaged.

[Rita_Wang]

Yes, you need to apply to change to new one.