On Tue, 23 Jan 2018 at 17:30 Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > On Tue, Jan 23, 2018 at 05:12:03PM +0000, Mike Lothian wrote: > > Hi > > > > I raised https://bugzilla.kernel.org/show_bug.cgi?id=198557 but was > > informed by Greg bugs should be raised on the mailing list not in > > bugzilla > > > > So USB-C devices only show up in dmesg or for use if they are > > connected during boot > > > > Once booted and the device is disconnected the following message > > appears in the dmesg: > > > > [ 100.814687] usb 3-1: USB disconnect, device number 3 > > [ 100.882840] xhci_hcd 0000:39:00.0: xHCI host controller not > > responding, assume dead > > [ 100.882843] xhci_hcd 0000:39:00.0: HC died; cleaning up > > > > No further connections or disconnections display anything further in > > the dmesg, the device works fine if connected via USB-A > > > > I've witnessed this behaviour since getting the laptop at the end of > > 2015 so this isn't a regression > > Is there a BIOS update for the laptop? This has been seen a lot in the > past on lots of different laptops but was always resolved by the BIOS > update (the latest one for mine also updates the xhci controller as > well.) > > thanks, > > greg k-h Hi I've applied all BIOS updates for my laptop including the pulled one for Spectre/Meltdown & ME bugs the other week http://www.dell.com/support/home/uk/en/ukdhs1/product-support/servicetag/8k5w662/drivers If it helps, I don't have this issue in Windows but I rarely have it booted I thought it might have something to do with an ACPI failure (see bug https://bugzilla.kernel.org/show_bug.cgi?id=198051) Regards Mike -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
