> For the complete documentation index, see [llms.txt](https://dev.solid-run.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.solid-run.com/amd/r8000-r7000/sbc-platform/bedrock-troubleshooting.md).

# Bedrock Troubleshooting

## Bedrock Troubleshooting

### Table of contents

* [Full size Display Port does not work in Bedrock R7000 Basic](#full-size-display-port-does-not-work-in-bedrock-r7000-basic)
  * [See R7000 Basic Full-size DP Erratum](#see-r7000-basic-full-size-dp-erratum)
* [System reboots under certain conditions while HDMI is connected](#system-reboots-under-certain-conditions-while-hdmi-is-connected)
  * [Status](#status)
  * [Symptom](#symptom)
  * [Solution](#solution)
* [USB 10G (Closest to console port) hotplug doesn't work](#usb-10g-closest-to-console-port-hotplug-doesnt-work)
  * [Symptom](#symptom)
  * [Solution](#solution)
* [Bedrock reboots once when booting to OS after power loss](#bedrock-reboots-once-when-booting-to-os-after-power-loss)
  * [Symptom](#symptom)
  * [Workaround](#workaround)
* [After re-assembly Bedrock does not power up / some features do not function properly](#after-re-assembly-bedrock-does-not-power-up-some-features-do-not-function-properly)
  * [Symptom](#symptom)
  * [Possible Cause](#possible-cause)
  * [Solution](#solution)

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

#### See [R7000 Basic Full-size DP Erratum](/amd/r8000-r7000/sbc-platform/bedrock-r8000-technical-documentation/bedrock-r8000-r7000-errata.md#full-size-display-port-does-not-work-in-bedrock-r7000-basic-resolved)

## 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](/amd/r8000-r7000/sbc-platform/bedrock-r8000-technical-documentation/software-bedrock-r8000/bios-bedrock-r8000-r7000/bedrock-r8000-r7000-bios-image-files.md)

## 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.


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