Hi @MariusM
If the quiet argument from Rudhi does not work it might help to just disable the console framebuffer by changing the kernel configuration. For this you need to apply the following patch:
diff --git a/arch/arm64/configs/toradex_defconfig b/arch/arm64/configs/toradex_defconfig
index 1ca4c6434e00..155680fe7e92 100644
--- a/arch/arm64/configs/toradex_defconfig
+++ b/arch/arm64/configs/toradex_defconfig
@@ -573,6 +575,7 @@ CONFIG_IMX_DPU_CORE=y
CONFIG_IMX_LCDIF_CORE=y
CONFIG_IMX_LCDIFV3_CORE=y
CONFIG_DRM=y
+# CONFIG_DRM_FBDEV_EMULATION is not set
CONFIG_DRM_I2C_CH7006=m
CONFIG_DRM_I2C_SIL164=m
CONFIG_DRM_I2C_NXP_TDA998X=m
Then run:
make toradex_defconfig
In the end in your .config CONFIG_FRAMEBUFFER_CONSOLE should be disabled. Then Linux can not use the display as a console anymore.
Regards,
Stefan