This is happening to me on a ThinkPad E495 with AMD chipset and no
docking station, with Ubuntu LTS 20, kernel 5.11.0-40-generic (latest
HWE), for example on inserting an USB mouse:
Nov 11 19:00:52 cyme upowerd[2469]: treating change event as add on
Lenovo X1 Extreme Gen2
Docking Lenovo Thunderbolt 3 Gen2
Was getting similar random disconnects every 2-5 minutes:
[125028.443102] pcieport :05:01.0: pciehp: Slot(1): Link Down
[125028.443108] pcieport :05:01.0: pciehp: Slot(1): Card not present
[125028.443122] pcieport :08:04.0:
I have the same issue with my Cable Matters USB-C dual 4k DisplayPort
docking station and HP Elitebook laptop.
In my experience, it does not occur on every disconnect, however each
time it does occur, it appears to be preceded by a kernel oops:
[114032.828215] usb 2-1: USB disconnect, device
This issue seems very recent, I want to know if this applies to my case
and if there's a workaround (e.g. lower the speed via configuration -
how?).
I'm using NXP embedded processor (SoC) running Ubuntu 19.06 with Linux
kernel 4.14.122. A condole message exact like what everyone reports
here is
This bug might be related to
https://bugzilla.kernel.org/show_bug.cgi?id=206901
** Bug watch added: Linux Kernel Bug Tracker #206901
https://bugzilla.kernel.org/show_bug.cgi?id=206901
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Logs I see in dmesg when undocking:
[ 233.116257] xhci_hcd :05:00.3: Abort failed to stop command ring: -110
[ 233.128054] xhci_hcd :05:00.3: xHCI host controller not responding,
assume dead
[ 233.128087] xhci_hcd :05:00.3: HC died; cleaning up
[ 233.128286] xhci_hcd
Same here on x395 (amd chipset) with Ubuntu 18.04 and 20.04 (kernel
5.4.0-14-generic). Also same on Fedora 31.
Attached a script that restore USB after undocking as workaround.
** Attachment added: "Script to reset xHCI after undocking"
Tested, still the same results: no usb available after the undock on
laptop (I had a pendrive attached to test)
uname -a
Linux 5.3.0-27-generic #29~lp1857385 SMP Fri Jan 3 21:30:32 CST 2020 x86_64
x86_64 x86_64 GNU/Linux
dmesg when I undock the laptop:
[ 129.399949] usb 2-1: USB disconnect,
Can you please test this kernel:
https://people.canonical.com/~khfeng/lp1857385/
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https://bugs.launchpad.net/bugs/1857385
Title:
xHCI host controller not responding, assume dead via
tested but it's still stucking the usb hub. After the undock I need to
run the reset of the USB hub to have it working.
Undock:
[ 84.219765] usb 2-1: USB disconnect, device number 2
[ 84.225638] [drm] DM_MST: stopping TM on aconnector: da0f527b [id:
78]
[ 84.225876] [drm] DM_MST:
Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5-rc3
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Title:
xHCI host controller not responding, assume
just for info : I tried also the kernel provided by
https://launchpad.net/~kaihengfeng on post 90 (
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1766076/comments/90)
but nothing changed
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** Description changed:
Hello,
I'm using a Lenovo T495s with the Lenovo AJ40 - Ultra Docking Station USB-C
(https://support.lenovo.com/us/en/solutions/pd500173O) and, when I undock the
laptop from the docking station, the USB Hub disconnects all the local laptop
USB ports and they are
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