Hello, I am trying to use https://www.amazon.com/Ableconn-PEX-MP117-Mini-PCI-Adapter/dp/B07JBCL1CJ with my Jetson Xavier AGX devkit. Around 50% of the time the boot gets stuck with a dim black screen before getting to the boot screen (the one with the big NVIDIA logo). I am powering the adapter se…

If you don’t need this device to work in UEFI stage, a quick workaround is to disable this PCIe controller in UEFI stage and enable it after kernel is up.

No, as I said check your kernel/dtb directory under Linux_for_Tegra.

[image] WayneWWW: kernel/dtb Ah I see it: nvidia_sdk/JetPack_5.1.3_Linux_JETSON_AGX_XAVIER_TARGETS/Linux_for_Tegra/kernel/dtb/tegra194-p2888-0001-p2822-0000.dts

Okay, I modified the .dtb file and ran sudo ./flash.sh -k kernel-dtb jetson-agx-xavier-devkit nvme0n1p1 to no avail. It hung in the same spot. The freeze seemed to happen as soon as the power LED lit up on the adapter based on my monitoring of the serial port.

Update, I modified this one in the bootloader directory and that fixes the problem. However now the PCI-e never turns on.

Now please go back to your extlinux.conf and enable the pcie controller again. Hope you understand what we are doing here.

Yes got it, in the middle of trying that. We are disabling the controller at boot and then re-enabling it after getting into Linux. How is kernel dtb different from the one loaded from extlinux?

Actually kernel-dtb partition has nothing to do with this issue at all. Your update in kernel-dtb shall have no effect.

Make sense. The problem now is that the extlinux dtb is not turning the device back on. Let me try with the external power now.

Again, if you hit any issue, dump the log again.

Seeing this in dmesg: (venv) ➜ jetson at /home/mrover/catkin_ws/src/mrover on git:(integration) * sudo dmesg | grep pcie [ 2.442749] tegra194-pcie 14180000.pcie: Adding to iommu group 7 [ 2.450021] tegra194-pcie 14180000.pcie: host bridge /pcie@14180000 ranges: [ 2.450133] tegra194-pcie 1…

Jetson stuck before boot with black screen when PCI-e device is connected

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier

quintin_mrover April 1, 2024, 5:41am 37

Thank you, will do: Jetson Xavier AGX Devkit C5 Fails to Enable Sometimes: "Phys Link Never Came Up"

Your help has been very helpful. Close to having everything working!

Topic		Replies	Views
Use UPD720201 to convert PCIe to USB and connect to PCIe C1 Jetson AGX Xavier pcie , kernel , usb , board-design	12	550	September 13, 2024
Jetson AGX Xavier Pcie(Root) detection of Device needs jetson reboot Jetson AGX Xavier pcie , fpga	24	2692	July 12, 2023
pcie can't work Jetson AGX Xavier	1	1016	September 23, 2019
XILINX PCIE NOT WORKING ON XAVIER with JETSON 5 Jetson AGX Xavier pcie , fpga	25	358	March 20, 2026
Jetson Xavier does not boot Jetson Xavier NX boot	1	598	August 14, 2023
Jetson UEFI firmware hangs on custom carrier board Jetson Xavier NX board-design	82	5547	November 23, 2022
Jetson-UEFI disable PCIE Jetson Xavier NX uefi , bootloader	13	344	December 18, 2025
Jetson AGX Xavier does not boot and stuck on Nvidia logo Jetson AGX Xavier boot	12	1062	August 14, 2023
Cannot Flash Jetson AGX Xavier. Video Output only shows blinking NVidiA Logo Jetson AGX Xavier boot	3	1136	June 17, 2021
After porting a 5G pcie driver to NX (Jetpack5.0.2/JetPack4.6.1), kernel boot stucked Jetson Xavier NX pcie , boot	9	1205	September 23, 2022

Jetson stuck before boot with black screen when PCI-e device is connected

Related topics