USB tethering not working after updating to latest kernel

gromit · 2025-05-05 20:25:29

The revert is now on track for linux 6.14.6 (and the other stable trees)
https://git.kernel.org/pub/scm/linux/ke … ices.patch

playbahn · 2025-05-05 20:44:40

Thank you!!!

Bharat · 2025-05-07 16:11:31

its also present in 6.14.5-arch1-1 i updated it a few days ago basically my laptop have crappy wifi have a very small range i rely on usb tethring from my phone it has made me absolutely mad though i did something unintentially wrong .

now i understand why people use lts kernels it gives new features then it also gives unironed bugs some times enough to make you switch .
but
i cant switch so easily i have been using this install for more than 3 years now i have so much data and no other backup hard drive what to do will it get fixed or will it take time.

seth · 2025-05-07 16:42:12

This behavior was backported into the LTS and every other kernel, otherwise you could just install and use the lts kernel in parallel.
As gromit pointed out, the patch got reverted for 6.14.6 and for all we know this only affects networkmanager anyway so even if you didn't want to downgrade to an unaffected kernel, you could simply use not networkmanager for your network connection.

Xx_RiK_xX · 2025-05-07 17:34:48

finally. thanks gromit and seth. should I close the issue now?

gromit · 2025-05-07 19:15:16

Hello everyone, this issue should be fixed in the following kernel:

sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-6.14.6rc1-1-x86_64.pkg.tar.zst

Bharat · 2025-05-08 03:33:26

gromit wrote:

Hello everyone, this issue should be fixed in the following kernel:
sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-6.14.6rc1-1-x86_64.pkg.tar.zst

Thanks this works but will i have to do something extra when the next update comes during updating.

seth · 2025-05-08 05:27:55

Not if that installs/updated the "linux" package.

m1k.cloud · 2025-10-09 06:55:26

has this issue reappeared? i am experiencing the same issue on the latest kernels (6.16,6.17,6.12) on a Pixel 9 pro

ott 09 08:43:08 kernel: usb 3-4: new high-speed USB device number 12 using xhci_hcd
ott 09 08:43:08 kernel: usb 3-4: New USB device found, idVendor=18d1, idProduct=4ee1, bcdDevice= 6.01
ott 09 08:43:08 kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
ott 09 08:43:08 kernel: usb 3-4: Product: Pixel 9 Pro
ott 09 08:43:08 kernel: usb 3-4: Manufacturer: Google
ott 09 08:43:08 kernel: usb 3-4: SerialNumber: 47101FDAP000NK
ott 09 08:43:12 kernel: usb 3-4: USB disconnect, device number 12
ott 09 08:43:12 systemd-resolved[528]: Using degraded feature set TCP instead of UDP for DNS server 1.1.1.1.
ott 09 08:43:12 kernel: usb 3-4: new high-speed USB device number 13 using xhci_hcd
ott 09 08:43:12 kernel: usb 3-4: New USB device found, idVendor=18d1, idProduct=4eeb, bcdDevice= 6.01
ott 09 08:43:12 kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
ott 09 08:43:12 kernel: usb 3-4: Product: Pixel 9 Pro
ott 09 08:43:12 kernel: usb 3-4: Manufacturer: Google
ott 09 08:43:12 kernel: usb 3-4: SerialNumber: 47101FDAP000NK
ott 09 08:43:12 kernel: cdc_ncm 3-4:1.0: MAC-Address: e2:21:34:19:fa:f0
ott 09 08:43:12 kernel: cdc_ncm 3-4:1.0 usb0: register 'cdc_ncm' at usb-0000:10:00.0-4, CDC NCM (NO ZLP), e2:21:34:19:fa:f0
ott 09 08:43:12 NetworkManager[858]: <info>  [1759992192.9434] manager: (usb0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/16)
ott 09 08:43:12 mtp-probe[3572]: checking bus 3, device 13: "/sys/devices/pci0000:00/0000:00:02.1/0000:04:00.0/0000:05:0c.0/0000:10:00.0/usb3/3-4"
ott 09 08:43:12 mtp-probe[3572]: bus: 3, device: 13 was not an MTP device
ott 09 08:43:12 kernel: cdc_ncm 3-4:1.0 enp16s0u4: renamed from usb0
ott 09 08:43:12 NetworkManager[858]: <info>  [1759992192.9569] device (usb0): interface index 14 renamed iface from 'usb0' to 'enp16s0u4'
ott 09 08:43:12 NetworkManager[858]: <info>  [1759992192.9611] device (enp16s0u4): state change: unmanaged -> unavailable (reason 'managed', managed-type: 'external')
ott 09 08:43:12 mtp-probe[3594]: checking bus 3, device 13: "/sys/devices/pci0000:00/0000:00:02.1/0000:04:00.0/0000:05:0c.0/0000:10:00.0/usb3/3-4"
ott 09 08:43:12 mtp-probe[3594]: bus: 3, device: 13 was not an MTP device
ott 09 08:43:12 ModemManager[841]: <wrn> [plugin-manager] task 4: port context already scheduled
ott 09 08:43:13 NetworkManager[858]: <info>  [1759992193.0562] device (enp16s0u4): carrier: link connected
ott 09 08:43:13 NetworkManager[858]: <info>  [1759992193.0564] device (enp16s0u4): state change: unavailable -> disconnected (reason 'carrier-changed', managed-type: 'full')
ott 09 08:43:16 ModemManager[841]: <msg> [base-manager] couldn't check support for device '/sys/devices/pci0000:00/0000:00:02.1/0000:04:00.0/0000:05:0c.0/0000:10:00.0/usb3/3-4': not supported by any plugin

seth · 2025-10-09 08:53:20

The regressing patch was reverted and has not been re-introduced, https://github.com/gregkh/linux/commits … dis_host.c - it also never was in 6.12 and the ethernet device seems to be setup?
Are you trying to use the WWAN device (phone as as modem) or the LAN device (phone as rj45 dongle, normal tethering)?

ip a

Arch Linux

#51 2025-05-05 20:25:29

Re: USB tethering not working after updating to latest kernel

#52 2025-05-05 20:44:40

Re: USB tethering not working after updating to latest kernel

#53 2025-05-07 16:11:31

Re: USB tethering not working after updating to latest kernel

#54 2025-05-07 16:42:12

Re: USB tethering not working after updating to latest kernel

#55 2025-05-07 17:34:48

Re: USB tethering not working after updating to latest kernel

#56 2025-05-07 19:15:16

Re: USB tethering not working after updating to latest kernel

#57 2025-05-08 03:33:26

Re: USB tethering not working after updating to latest kernel

#58 2025-05-08 05:27:55

Re: USB tethering not working after updating to latest kernel

#59 2025-10-09 06:55:26

Re: USB tethering not working after updating to latest kernel

#60 2025-10-09 08:53:20

Re: USB tethering not working after updating to latest kernel

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