0

I am trying to connect to the internet on my laptop (Lenovo Thinkpad running Ubuntu 18.04) by connecting to my phone (iPhone 6s) though a USB-Lightning cord.

This has worked for months but suddenly failed, possibly due to a software/firmware upgrade. Here is the what seems to be the relevant part of the log:

[  +0.012080] ipheth 1-3:4.2: Apple iPhone USB Ethernet device attached
[  +0.000012] usbcore: registered new interface driver ipheth
[  +0.009028] ipheth 1-3:4.2 enp0s20f0u3c4i2: renamed from eth0
[  +0.050073] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[  +0.000002] Bluetooth: BNEP filters: protocol multicast
[  +0.000005] Bluetooth: BNEP socket layer initialized
[  +0.319300] IPv6: ADDRCONF(NETDEV_UP): enp0s20f0u3c4i2: link is not ready
[  +0.000606] IPv6: ADDRCONF(NETDEV_UP): enp0s20f0u3c4i2: link is not ready
[  +0.003802] IPv6: ADDRCONF(NETDEV_UP): enp0s31f6: link is not ready
[  +0.186225] IPv6: ADDRCONF(NETDEV_UP): enp0s31f6: link is not ready
[  +0.002091] IPv6: ADDRCONF(NETDEV_UP): wlp0s20f3: link is not ready
[  +0.193558] iwlwifi 0000:00:14.3: BIOS contains WGDS but no WRDS
[  +0.000488] IPv6: ADDRCONF(NETDEV_UP): wlp0s20f3: link is not ready
[  +0.087906] IPv6: ADDRCONF(NETDEV_UP): wlp0s20f3: link is not ready
[  +6.065263] ip6_tables: (C) 2000-2006 Netfilter Core Team
[  +2.736662] Bluetooth: RFCOMM TTY layer initialized
[  +0.000011] Bluetooth: RFCOMM socket layer initialized
[  +0.000009] Bluetooth: RFCOMM ver 1.11
[  +1.081306] thinkpad_acpi: unknown possible thermal alarm or keyboard event received
[  +0.000002] thinkpad_acpi: unhandled HKEY event 0x6032
[  +0.000000] thinkpad_acpi: please report the conditions when this event happened to ibm-acpi-devel@lists.sourceforge.net
[  +0.614643] thunderbolt 0000:04:00.0: stopping RX ring 0
[  +0.000011] thunderbolt 0000:04:00.0: disabling interrupt at register 0x38200 bit 12 (0x1001 -> 0x1)
[  +0.000017] thunderbolt 0000:04:00.0: stopping TX ring 0
[  +0.000008] thunderbolt 0000:04:00.0: disabling interrupt at register 0x38200 bit 0 (0x1 -> 0x0)
[  +0.000008] thunderbolt 0000:04:00.0: control channel stopped
[ +10.943627] thinkpad_acpi: unknown possible thermal alarm or keyboard event received
[  +0.000001] thinkpad_acpi: unhandled HKEY event 0x6032
[  +0.000001] thinkpad_acpi: please report the conditions when this event happened to ibm-acpi-devel@lists.sourceforge.net
[Dec10 08:14] rfkill: input handler disabled
[ +11.118975] thinkpad_acpi: unknown possible thermal alarm or keyboard event received
[  +0.000004] thinkpad_acpi: unhandled HKEY event 0x6032

Presumably, the "link is not ready" is where things fail? I am wondering if this is a firmware/driver issue and maybe reverting an upgrade would fix things? I am going to see if I can figure out how to do that. I am able to connect using the phone as a wireless hot spot but not using Bluetooth.

Here are the items that have most recently been upgraded:

intel-microcode:amd64 (3.20191115.1ubuntu0.18.04.1, 3.20191115.1ubuntu0.18.04.2)
grub-common:amd64 (2.02-2ubuntu8.13, 2.02-2ubuntu8.14)
grub2-common:amd64 (2.02-2ubuntu8.13, 2.02-2ubuntu8.14)
grub-pc:amd64 (2.02-2ubuntu8.13, 2.02-2ubuntu8.14)
grub-pc-bin:amd64 (2.02-2ubuntu8.13, 2.02-2ubuntu8.14)
grub-efi-amd64-bin:amd64 (2.02-2ubuntu8.13, 2.02-2ubuntu8.14)
grub-efi-amd64-signed:amd64 (1.93.14+2.02-2ubuntu8.13, 1.93.15+2.02-2ubuntu8.14)
unattended-upgrades:amd64 (1.1ubuntu1.18.04.12, 1.1ubuntu1.18.04.13)
libnss3:amd64 (2:3.35-2ubuntu2.5, 2:3.35-2ubuntu2.6)
linux-firmware:amd64 (1.173.12, 1.173.13)
  • Odd. Since there was a firmware update, did you try rebooting your machine? – Giacomo1968 Dec 10 '19 at 14:38
  • 1
    Yes, several times – Zach Boyd Dec 10 '19 at 14:38
  • This writeup confuses me because iPhones don't support Thunderbolt, and don't have a USB connector. So the cable is probably a USB Type-C to Lightning cable (which is just a specialized USB cable, not a Thunderbolt-compatible cable at all). But then whatever log that is (which log is it?) does say something about Thunderbolt, which shouldn't be involved here. Very confusing. – Spiff Dec 10 '19 at 19:54
  • The log is from dmesg -H. I thought that Thunderbolt was the name of the shape that you need for the iPhone charger port but could well be mistaken. – Zach Boyd Dec 10 '19 at 20:34
0

It seems that redoing the installation with apt install --reinstall <list-of-packages> fixed this problem. Presumably this means that the installation was somehow corrupted, although I'm still not sure how this was not flagged somehow or how I could have figured that out from the error messages I was getting. But in any case the problem is fixed now.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.