No HDMI output on dahlia / DSI to HDMI adapter with verdin imx8mp

Verdin iMX8MP Q 2GB V1.0B
Dahlia Carrier Board 1.0
Verdin DSI to HDMI Adapter V1.0B
Linux BSP 5.2.0 / 5.5.0-devel

Hi Toradex Support,
yesterday I tried to setup a Verdin i.MX8MP with dahlia and the DSI-to-HDMI adapter, but I’m not able to get an output on 3 HDMI (FullHD) monitors.

The SOM came with BSP 5.2.0, I rebuilt the image, flashed with bmap-tool and tested with 5.5.0-devel (multimedia image), but no luck either.
The lt8912 dtbo is activated in /boot/overlays.txt. At first the verdin-dev dtb was loaded, I changed the board name to dahlia, but that didn’t change much.
Weston starts fine and seems to be running, so no issue on this part.
I guess something in the devicetree is not completely ok, because I get the following error messages:

[    1.161918] imx_sec_dsim_drv 32e60000.mipi_dsi: version number is 0x1060200
[    1.168934] imx_sec_dsim_drv 32e60000.mipi_dsi: modalias failure on /soc@0/bus@32c00000/mipi_dsi@32e60000/port@1
[    1.179142] imx_sec_dsim_drv 32e60000.mipi_dsi: Failed to attach bridge: 32e60000.mipi_dsi
[    1.187427] imx_sec_dsim_drv 32e60000.mipi_dsi: failed to bind sec dsim bridge: -517
[    1.903392] imx_sec_dsim_drv 32e60000.mipi_dsi: version number is 0x1060200
[    1.910400] imx_sec_dsim_drv 32e60000.mipi_dsi: modalias failure on /soc@0/bus@32c00000/mipi_dsi@32e60000/port@1

Complete journal → journal_12112021.log (1.2 MB)uboot_12112021.log (10.3 KB)

Any ideas what might be going wrong here?

Thanks in advance & best regards,

Hi Peter,

Welcome to the Toradex community.

Thank you for your question, we are looking into it and we will get back to you as soon as possible.

Best Regards

Hi @peter ,

please have a look at the compatibility of verdin products page.

I sent you a private message as well.

Best Regards

Ok, I see I have a compatibility issue here with imx8mp (2nd gen. verdin) and the older dahlia/adapter (1st gen. verdin).
Thanks @kevin.tx for the clarification!