Not able to get display on LVDS1 on imx8qxp-mek C0.

cancel
Showing results for 
Search instead for 
Did you mean: 

Not able to get display on LVDS1 on imx8qxp-mek C0.

151 Views
MahdiMG
Contributor I

Hello,
We are using custom board of iMX8QXP-mek
I built an NXP i.MX Release Distro 5.4-zeus imx8qxpc0mek image.
The board boot on SD card without problem.
I have the display on hdmi screen using the IMX-LVDS-HDMI converter.

My goal is to have the display on an LVDS screen directly connected to DSI1/LVDS1 connector.
So I will not use the IMX-LVDS-HDMI converter for DSI1/LVDS1 connector.
imx8-LVDS1.jpg

I used the dtb which exists by default to manage the display via lvds (imx8qxp-mek-jdi-wuxga-lvds1-panel.dtb)
=> setenv fdt_file imx8qxp-mek-jdi-wuxga-lvds1-panel.dtb
=> saveenv
=> boot

After booting, I encountered a problem:
The image is blocked at init.

[ 2.945411] i2c i2c-18: LPI2C adapter registered
[ 2.952633] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 2.959322] [drm] No driver support for vblank timestamp query.
[ 2.965358] imx-drm display-subsystem: bound imx-drm-dpu-bliteng.2 (ops dpu_bliteng_ops)
[ 2.973829] imx-drm display-subsystem: bound imx-dpu-crtc.0 (ops dpu_crtc_ops)
[ 2.981353] imx-drm display-subsystem: bound imx-dpu-crtc.1 (ops dpu_crtc_ops)
[ 2.988658] imx-drm display-subsystem: bound 56228000.dsi_host (ops nwl_dsi_component_ops)
[ 2.998133] imx-drm display-subsystem: bound bus@56220000:ldb@562410e0 (ops imx8qxp_ldb_ops)
[ 3.006648] imx-drm display-subsystem: bound 56248000.dsi_host (ops nwl_dsi_component_ops)
[ 3.015751] [drm] Initialized imx-drm 1.0.0 20120507 for display-subsystem on minor 0
[ 3.152993] mmc1: new ultra high speed SDR104 SDXC card at address aaaa
[ 3.153689] mmcblk1: mmc1:aaaa SB64G 59.5 GiB
[ 3.156519] mmcblk1: p1 p2
[ 3.337405] Console: switching to colour frame buffer device 240x75
[ 3.390082] imx-drm display-subsystem: fb0: imx-drmdrmfb frame buffer device
[ 8.902174] random: crng init done

Herewith the full traces.


Are there any explanations?
Is this the correct dtb that I should be using to have the display on the lvds screen?

Thanks & Regards,

Mahdi MGALLES

0 Kudos
0 Replies