Comment # 11 on bug 973138 from Oliver Neukum

(In reply to sean read from comment #10)

> Aug 1 15:14:59 sean-Alienware-13-R2 kernel: [ 490.175027] xhci_hcd
> 0000:08:00.0: USB bus 3 deregistered
> Aug 1 15:14:59 sean-Alienware-13-R2 kernel: [ 490.176042] pci_bus 0000:06:
> busn_res: [bus 06] is released
> Aug 1 15:14:59 sean-Alienware-13-R2 kernel: [ 490.176164] pci_bus 0000:07:
> busn_res: [bus 07] is released
> Aug 1 15:14:59 sean-Alienware-13-R2 kernel: [ 490.194999] pci_bus 0000:08:
> busn_res: [bus 08] is released
> Aug 1 15:14:59 sean-Alienware-13-R2 kernel: [ 490.195097] pci_bus 0000:05:
> busn_res: [bus 05-08] is released
> 
> But plugging it back in, nothing.

You have a PCI hotplug there. This is different. Please open a separate report.