Bedrock Troubleshooting

Bedrock Troubleshooting

Table of contents

• Full size Display Port does not work in Bedrock R7000 Basic

  • See R7000 Basic Full-size DP Erratum

• System reboots under certain conditions while HDMI is connected

  • Status

  • Symptom

  • Solution

• USB 10G (Closest to console port) hotplug doesn't work

  • Symptom

  • Solution

• Bedrock reboots once when booting to OS after power loss

  • Symptom

  • Workaround

• After re-assembly Bedrock does not power up / some features do not function properly

  • Symptom

  • Possible Cause

  • Solution

Full size Display Port does not work in Bedrock R7000 Basic

See R7000 Basic Full-size DP Erratum

System reboots under certain conditions while HDMI is connected

Status

resolved

Symptom

Bedrock R7000 reboots when HDMI display is connected in the following scenarios:

• Running lspci and accessing device 08:00.03

• Running some programs that are opening a GUI

• Installing AMD GPU Windows drivers

• Booting Windows installer

Solution

Update to BIOS V33

USB 10G (Closest to console port) hotplug doesn't work

Symptom

When unplugging and plugging a USB device to the 10G USB port (closest one to the console port) the USB device has power but no data.

SolidRun R&D is working on solving the issue.

Solution

Windows: Disable USB Power Managment for USB Host Controller in Device Manager.

Linux: Add usbcore.autosuspend=-1 to grub command line

sudo nano /etc/default/grub

Find the line that starts with: GRUB_CMDLINE_LINUX_DEFAULT

Add the usbcore.autosuspend=-1 argument

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore.autosuspend=-1"

Save the new configuration

update-grub

Bedrock reboots once when booting to OS after power loss

Symptom

When device loses power, before booting to OS it reboots one time then boots to OS normally.

Workaround

Let the device reboot, after which it will continue working normally, until the next power loss.

After re-assembly Bedrock does not power up / some features do not function properly

Symptom

• Bedrock was fully disassembled for installing RAM / NVME on SoM. After re-assembly Bedrock does not power up / some features do not function properly

Possible Cause

• There are four high density B2B connectors between SoM and NIO. Connectors may not be fully connected.

Solution

• Disassemble and separate NIO from SoM.

• Observe the B2B connectors and their position. Ensure they are clean on both sides.

• Seat the NIO and apply pressure on the connectors to ensure the NIO is seated properly.

• Tighten NIO screws.

• Complete assembly and test power up and functionality.