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The death of Wi-Fi and Bluetooth

The Wi-Fi 6E & Bluetooth 5.2 controllers in my motherboard died today.

Until the motherboard can be replaced, the solution is to disable both in the UEFI BIOS. This is the only state in which the PC boots normally. Enabling the Bluetooth controller causes the boot process to spend about a minute trying to initialize the device, enabling the Wi-Fi controller causes the whole system to freeze with at the login screen and/or eventually reboot itself.

xHCI host controller not responding, assume dead

Today, a number of USB devices were unavailable for no apparent reason.

Having a terminal always visible running dmesg -w the following showed up:

xhci_hcd 0000:0b:00.3: Abort failed to stop command ring: -110
xhci_hcd 0000:0b:00.3: xHCI host controller not responding, assume dead
xhci_hcd 0000:0b:00.3: HC died; cleaning up

Hmm, assume dead... that doesn’t sounds good.