[Bug 213967] Thinkpad T14 Chicony Webcam not recognized by kernel

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=213967

--- Comment #2 from Bjørn Mork (bjorn@mork.no) ---
bugzilla-daemon@bugzilla.kernel.org writes:

> https://bugzilla.kernel.org/show_bug.cgi?id=213967
>
> --- Comment #1 from Horatiu Ion (dev@horatiuion.com) ---
> I've managed to get some more info:
>
> On the non-working kernel versions, I get these messages during boot
>
> ```
> [    7.292465] xhci_hcd 0000:06:00.0: xHCI Host Controller
> [    7.292476] xhci_hcd 0000:06:00.0: new USB bus registered, assigned bus
> number 2
> [    7.292499] xhci_hcd 0000:06:00.0: Zeroing 64bit base registers, expecting
> fault
> [   17.324564] xhci_hcd 0000:06:00.0: can't setup: -110
> [   17.324573] xhci_hcd 0000:06:00.0: USB bus 2 deregistered
> [   17.324679] xhci_hcd 0000:06:00.0: init 0000:06:00.0 fail, -110
> [   17.324697] xhci_hcd: probe of 0000:06:00.0 failed with error -110
> ```
>
> From what I could gather, it is timing out while trying to communicate with
> the
> USB device

Did you recently update your BIOS?

The reason I ask, is that I ended up with the same problem on my
Thinkpad X1 Carbon 4th Gen a few days ago after updating to the latest
revision (version 1.49 - obviously model specific and irrelevant. The
bios_date is 05/25/2021)


I tried the tricks I know of in an attempt to solve this without a reboot:
 - unloading and reloading the XHCI driver and the complete USB subsystem
 - removing the PCI device from the bus and rescan

Nothing of that helped. This is the log from the problem occured and
with all these attempts to "fix" it:

Aug  4 00:39:42 miraculix kernel: [18556.116475] xhci_hcd 0000:00:14.0: xHC is
not running.
Aug  4 00:39:42 miraculix kernel: [18556.148257] xhci_hcd 0000:00:14.0: xHCI
host controller not responding, assume dead
Aug  4 00:39:42 miraculix kernel: [18556.148278] xhci_hcd 0000:00:14.0: HC
died; cleaning up
Aug  4 00:39:42 miraculix kernel: [18556.180743] usb 1-2: USB disconnect,
device number 2
Aug  4 00:39:42 miraculix kernel: [18556.181032] qcserial ttyUSB0: Qualcomm USB
modem converter now disconnected from ttyUSB0
Aug  4 00:39:42 miraculix kernel: [18556.181059] qcserial 1-2:1.0: device
disconnected
Aug  4 00:39:42 miraculix kernel: [18556.181467] qcserial ttyUSB1: Qualcomm USB
modem converter now disconnected from ttyUSB1
Aug  4 00:39:42 miraculix kernel: [18556.181496] qcserial 1-2:1.2: device
disconnected
Aug  4 00:39:42 miraculix kernel: [18556.182016] qcserial ttyUSB2: Qualcomm USB
modem converter now disconnected from ttyUSB2
Aug  4 00:39:42 miraculix kernel: [18556.182057] qcserial 1-2:1.3: device
disconnected
Aug  4 00:39:42 miraculix kernel: [18556.182145] cdc_mbim 1-2:1.12 wwan0:
unregister 'cdc_mbim' usb-0000:00:14.0-2, CDC MBIM
Aug  4 00:39:42 miraculix kernel: [18556.196829] usb 1-7: USB disconnect,
device number 3
Aug  4 00:39:42 miraculix kernel: [18556.202586] usb 1-8: USB disconnect,
device number 4
Aug  4 00:39:42 miraculix kernel: [18556.244493] usb 1-9: USB disconnect,
device number 5
Aug  4 01:18:59 miraculix kernel: [20902.755697] xhci_hcd 0000:00:14.0: remove,
state 4
Aug  4 01:18:59 miraculix kernel: [20902.755703] usb usb2: USB disconnect,
device number 1
Aug  4 01:18:59 miraculix kernel: [20902.755934] xhci_hcd 0000:00:14.0: USB bus
2 deregistered
Aug  4 01:18:59 miraculix kernel: [20902.755954] xhci_hcd 0000:00:14.0: remove,
state 4
Aug  4 01:18:59 miraculix kernel: [20902.755956] usb usb1: USB disconnect,
device number 1
Aug  4 01:18:59 miraculix kernel: [20912.758042] xhci_hcd 0000:00:14.0: USB bus
1 deregistered
Aug  4 01:19:10 miraculix kernel: [20924.069460] xhci_hcd 0000:00:14.0: xHCI
Host Controller
Aug  4 01:19:10 miraculix kernel: [20924.069470] xhci_hcd 0000:00:14.0: new USB
bus registered, assigned bus number 1
Aug  4 01:19:20 miraculix kernel: [20934.070403] xhci_hcd 0000:00:14.0: can't
setup: -110
Aug  4 01:19:20 miraculix kernel: [20934.070421] xhci_hcd 0000:00:14.0: USB bus
1 deregistered
Aug  4 01:19:20 miraculix kernel: [20934.070573] xhci_hcd 0000:00:14.0: init
0000:00:14.0 fail, -110
Aug  4 01:19:20 miraculix kernel: [20934.070629] xhci_hcd: probe of
0000:00:14.0 failed with error -110
Aug  4 01:21:32 miraculix kernel: [21065.728049] xhci_hcd 0000:00:14.0: xHCI
Host Controller
Aug  4 01:21:32 miraculix kernel: [21065.728091] xhci_hcd 0000:00:14.0: new USB
bus registered, assigned bus number 1
Aug  4 01:21:42 miraculix kernel: [21075.728994] xhci_hcd 0000:00:14.0: can't
setup: -110
Aug  4 01:21:42 miraculix kernel: [21075.729068] xhci_hcd 0000:00:14.0: USB bus
1 deregistered
Aug  4 01:21:42 miraculix kernel: [21075.729234] xhci_hcd 0000:00:14.0: init
0000:00:14.0 fail, -110
Aug  4 01:21:42 miraculix kernel: [21075.729275] xhci_hcd: probe of
0000:00:14.0 failed with error -110
Aug  4 01:22:40 miraculix kernel: [21134.566144] usbcore: deregistering
interface driver btusb
Aug  4 01:22:58 miraculix kernel: [21152.129055] usbcore: deregistering
interface driver cdc_mbim
Aug  4 01:22:58 miraculix kernel: [21152.152995] usbcore: deregistering
interface driver cdc_ncm
Aug  4 01:22:58 miraculix kernel: [21152.189604] usbcore: deregistering
interface driver cdc_ether
Aug  4 01:22:58 miraculix kernel: [21152.257441] usbcore: deregistering
interface driver cdc_wdm
Aug  4 01:23:17 miraculix kernel: [21170.766144] usbserial: USB Serial
deregistering driver Qualcomm USB modem
Aug  4 01:23:17 miraculix kernel: [21170.766170] usbcore: deregistering
interface driver qcserial
Aug  4 01:23:17 miraculix kernel: [21170.809014] usbserial: USB Serial
deregistering driver generic
Aug  4 01:23:17 miraculix kernel: [21170.809076] usbcore: deregistering
interface driver usbserial_generic
Aug  4 01:23:56 miraculix kernel: [21210.258661] usbcore: deregistering
interface driver uvcvideo
Aug  4 01:23:56 miraculix kernel: [21210.276965] usbcore: deregistering device
driver usb
Aug  4 01:23:56 miraculix kernel: [21210.277049] usbcore: deregistering
interface driver usbfs
Aug  4 01:23:56 miraculix kernel: [21210.277104] usbcore: deregistering
interface driver hub
Aug  4 01:23:56 miraculix kernel: [21210.277157] ACPI: bus type USB
unregistered
Aug  4 01:24:17 miraculix kernel: [21230.786839] ACPI: bus type USB registered
Aug  4 01:24:17 miraculix kernel: [21230.786869] usbcore: registered new
interface driver usbfs
Aug  4 01:24:17 miraculix kernel: [21230.786876] usbcore: registered new
interface driver hub
Aug  4 01:24:17 miraculix kernel: [21230.786886] usbcore: registered new device
driver usb
Aug  4 01:24:17 miraculix kernel: [21230.799890] xhci_hcd 0000:00:14.0: xHCI
Host Controller
Aug  4 01:24:17 miraculix kernel: [21230.799899] xhci_hcd 0000:00:14.0: new USB
bus registered, assigned bus number 1
Aug  4 01:24:27 miraculix kernel: [21240.800799] xhci_hcd 0000:00:14.0: can't
setup: -110
Aug  4 01:24:27 miraculix kernel: [21240.800815] xhci_hcd 0000:00:14.0: USB bus
1 deregistered
Aug  4 01:24:27 miraculix kernel: [21240.800968] xhci_hcd 0000:00:14.0: init
0000:00:14.0 fail, -110
Aug  4 01:24:27 miraculix kernel: [21240.801008] xhci_hcd: probe of
0000:00:14.0 failed with error -110
Aug  4 01:26:25 miraculix kernel: [21358.881499] pci 0000:00:14.0: Removing
from iommu group 4
Aug  4 01:27:14 miraculix kernel: [21408.264723] pci 0000:00:14.0: [8086:9d2f]
type 00 class 0x0c0330
Aug  4 01:27:14 miraculix kernel: [21408.264775] pci 0000:00:14.0: reg 0x10:
[mem 0xe1320000-0xe132ffff 64bit]
Aug  4 01:27:14 miraculix kernel: [21408.264956] pci 0000:00:14.0: PME#
supported from D3hot D3cold
Aug  4 01:27:14 miraculix kernel: [21408.265882] pci 0000:00:14.0: Adding to
iommu group 4
Aug  4 01:27:14 miraculix kernel: [21408.266313] pci 0000:00:14.0: BAR 0:
assigned [mem 0xbc800000-0xbc80ffff 64bit]
Aug  4 01:27:14 miraculix kernel: [21408.267948] xhci_hcd 0000:00:14.0: xHCI
Host Controller
Aug  4 01:27:14 miraculix kernel: [21408.267981] xhci_hcd 0000:00:14.0: new USB
bus registered, assigned bus number 1
Aug  4 01:27:24 miraculix kernel: [21418.268892] xhci_hcd 0000:00:14.0: can't
setup: -110
Aug  4 01:27:24 miraculix kernel: [21418.268909] xhci_hcd 0000:00:14.0: USB bus
1 deregistered
Aug  4 01:27:24 miraculix kernel: [21418.269039] xhci_hcd 0000:00:14.0: init
0000:00:14.0 fail, -110
Aug  4 01:27:24 miraculix kernel: [21418.269055] xhci_hcd: probe of
0000:00:14.0 failed with error -110
Aug  4 01:32:14 miraculix kernel: [21708.108060] usbcore: deregistering device
driver usb
Aug  4 01:32:14 miraculix kernel: [21708.108133] usbcore: deregistering
interface driver usbfs
Aug  4 01:32:14 miraculix kernel: [21708.108182] usbcore: deregistering
interface driver hub
Aug  4 01:32:14 miraculix kernel: [21708.108229] ACPI: bus type USB
unregistered
Aug  4 01:32:18 miraculix kernel: [21712.318741] ACPI: bus type USB registered
Aug  4 01:32:18 miraculix kernel: [21712.318811] usbcore: registered new
interface driver usbfs
Aug  4 01:32:18 miraculix kernel: [21712.318820] usbcore: registered new
interface driver hub
Aug  4 01:32:18 miraculix kernel: [21712.318832] usbcore: registered new device
driver usb
Aug  4 01:32:18 miraculix kernel: [21712.332851] xhci_hcd 0000:00:14.0: xHCI
Host Controller
Aug  4 01:32:18 miraculix kernel: [21712.332857] xhci_hcd 0000:00:14.0: new USB
bus registered, assigned bus number 1
Aug  4 01:32:28 miraculix kernel: [21722.333756] xhci_hcd 0000:00:14.0: can't
setup: -110
Aug  4 01:32:28 miraculix kernel: [21722.333774] xhci_hcd 0000:00:14.0: USB bus
1 deregistered
Aug  4 01:32:28 miraculix kernel: [21722.333936] xhci_hcd 0000:00:14.0: init
0000:00:14.0 fail, -110
Aug  4 01:32:28 miraculix kernel: [21722.333950] xhci_hcd: probe of
0000:00:14.0 failed with error -110


The reboot after the BIOS update was at Aug  3 19:30:30, so it took at
few hours before the problem appeared.  It was still close enough that I
assume there might be a relation, given that BIOS updates is a very rare
event for me...


So I took the generic advise I never follow: Reloading BIOS default
settings.

This might have solved the issue.  I have not seen it since.  But as you
see: It's only been a few days, so that could be just a co-incidence.

But pease try. This will give us more data either it helps or not.



Bjørn

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