Hi, Genio Community
I am verifying the functions of an G520 OEM EVK board, and I am currently using version 25.1.1 of Rity Demo Image with DPoC and DP .dtbo files flashed in. I have tested the cable and it is working (displaying my laptop correctly), but there was no output coming from the G520 board.
I have logged some of the status from UART terminal, hope this would be helpful for troubleshooting.
ID=rity-demo
NAME="Rity Demo Layer"
VERSION="25.1.1-release (scarthgap)"
VERSION_ID=25.1.1-release
VERSION_CODENAME="scarthgap"
PRETTY_NAME="Rity Demo Layer 25.1.1-release (scarthgap)"
CPE_NAME="cpe:/o:openembedded:rity-demo:25.1.1-release"
Linux genio-520-evk 6.6.92-mtk+g7a9a94d39e1d-g0f82689e1ac2 #1 SMP PREEMPT Wed Mar 11 08:24:46 UTC 2026 aarch64 GNU/Linux
=== DRM ===
/sys/class/drm/card0-DP-1/status: disconnected
/sys/class/drm/card0-DSI-1/status: connected
=== TYPE-C ===
/sys/class/typec
=== RELEVANT LOGS ===
[ 0.029479] /soc/usb-dp-selector@10011034: Fixed dependency cycle(s) with /soc/i2c@11d72000/rt1715@4e/connector
[ 0.029721] /soc/disp-dvo1@14018000: Fixed dependency cycle(s) with /soc/dp-tx@11b60000
[ 0.029730] /soc/dp-tx@11b60000: Fixed dependency cycle(s) with /soc/disp-dvo1@14018000
[ 0.029738] /soc/dp-tx@11b60000: Fixed dependency cycle(s) with /soc/i2c@11d71000/mt6375@34/mt6375-tcpc/connector
[ 0.029795] /soc/i2c@11d71000/mt6375@34/mt6375-tcpc/connector: Fixed dependency cycle(s) with /soc/dp-tx@11b60000
[ 0.029809] /soc/i2c@11d72000/rt1715@4e/connector: Fixed dependency cycle(s) with /soc/usb-dp-selector@10011034
[ 0.031872] /soc/usb-dp-selector@10011034: Fixed dependency cycle(s) with /soc/i2c@11d72000/rt1715@4e/connector
[ 0.040578] /soc/disp-dvo1@14018000: Fixed dependency cycle(s) with /soc/dp-tx@11b60000
[ 0.040720] /soc/disp-dvo1@14018000: Fixed dependency cycle(s) with /soc/dp-tx@11b60000
[ 0.040745] /soc/dp-tx@11b60000: Fixed dependency cycle(s) with /soc/disp-dvo1@14018000
[ 0.040767] /soc/dp-tx@11b60000: Fixed dependency cycle(s) with /soc/i2c@11d71000/mt6375@34/mt6375-tcpc/connector
[ 0.041621] /soc/i2c@11d71000/mt6375@34/mt6375-tcpc/connector: Fixed dependency cycle(s) with /soc/dp-tx@11b60000
[ 0.041763] /soc/i2c@11d72000/rt1715@4e/connector: Fixed dependency cycle(s) with /soc/usb-dp-selector@10011034
[ 0.816590] /soc/i2c@11d71000/mt6375@34/mt6375-tcpc/connector: Fixed dependency cycle(s) with /soc/dp-tx@11b60000
[ 0.961665] mediatek-drm-dp-v2 11b60000.dp-tx: [DPTX] use dpoc: 1
[ 1.082975] /soc/i2c@11d72000/rt1715@4e/connector: Fixed dependency cycle(s) with /soc/usb-dp-selector@10011034
[ 4.457393] rt1711h 5-004e: check vid/pid fail
=== RT1715 BINDING ===
rt1715
UNBOUND
I have checked the hardware specification, and I am connected to the port(USB C P0) that supports DP.
Many Thanks,
Wayne