USB not working, debounce issue on 6.12.56-current-meson64

dabozz · November 15, 2025

Hi,

I currently have the issue of a non working usb port on my odroidhc4.

dmesg output:

[  133.464610] usb usb1-port2: connect-debounce failed

The port does not show up when lsusb is entered.

uname -a:

Linux odroidhc4 6.12.56-current-meson64 #1 SMP PREEMPT Wed Oct 29 13:09:02 UTC 2025 aarch64 GNU/Linux

I solved this temporairly a while ago by booting an older kernel (linux-image-6.12.43+deb12-arm64) like mentioned here:

Are there any progresses on how to fix this reliably? Because I think still running kernel 6.6.63 is not save.

Thanks for your answer in advance, if you need more information I am happy to deliver.

Igor · November 23, 2025

On 11/15/2025 at 11:59 AM, dabozz said:

running kernel 6.6.63 is not save

6.6 is LTS kernel https://www.kernel.org/category/faq.html When some security issue is found, it goes into all LTS kernels. Higher version number does not guarantee bigger safety. Most recent has more functional bug fixes and new features and is generally more fragile - bugs / holes yet to be found.

On 11/15/2025 at 11:59 AM, dabozz said:

Are there any progresses on how to fix this reliably?

Yes, v25.11.1 with 6.12.y https://www.armbian.com/odroid-hc4/ doesn't have those problems. At least I could not recreate them. Booting HC4, plugged in two usb devices, all good: https://paste.armbian.com/ibifozegof

P.S.
Life is deadly dangerous

dabozz · November 24, 2025

Great news! So a simple apt update/upgrade will fix it for me?

Igor · November 24, 2025

1 hour ago, dabozz said:

Great news! So a simple apt update/upgrade will fix it for me?

Yes, but packages hasn't been pushed out yet. We need to test and possibly fix last problems on images. In 10-14 days.

dabozz · December 8, 2025

Hi Igor,

I recently updated to Armbian 25.11.2 bookworm aarch64 with kernel Linux odroidhc4 6.12.58-current-meson64. This should be a working version?

There I still get the same connect-debounce error. Do you have any advice?

savoy · April 23

I'm having the same issue after upgrading. I do backups on an HDD via USB for the two drives on my HC4

I was on Bullseye this year and was planning on moving up to Bookworm for a bit, but was hit with the issue. I decided to jump then into Trixie in the hopes that a more recent kernel would fix it, but I'm still facing it.

kernel: Linux odroidhc4 6.18.10-current-meson64

dmesg error msg: usb usb1-port2: connect-debounce failed

Winnize · 2026-07-08T21:03:32Z

Quote

root@odroidhc4 [22:53:05] [~]
-> # dmesg | grep failed
[ 4.378109] usb usb1-port2: connect-debounce failed

root@odroidhc4 [22:53:13] [~]
-> # uname -a
Linux odroidhc4 6.18.34-current-meson64 #1 SMP PREEMPT Mon Jun 1 15:51:08 UTC 2026 aarch64 GNU/Linux

root@odroidhc4 [22:58:39] [~]
-> # /lib/nut/usbhid-ups -DDDDD -a ups
Network UPS Tools - Generic HID driver 0.52 (2.8.1)
USB communication driver (libusb 1.0) 0.46
0.000000 [D5] do_upsconf_args: confupsname=ups, var=driver, val=usbhid-ups
0.000032 [D5] do_upsconf_args: call main_arg()
0.000049 [D3] main_arg: var='driver' val='usbhid-ups'
0.000064 [D5] do_upsconf_args: not a main_arg()
0.000076 [D5] do_upsconf_args: this is a 'driver' setting, may we proceed?
0.000090 [D5] do_upsconf_args: 'driver' setting already applied with this value
0.000106 [D5] do_upsconf_args: confupsname=ups, var=port, val=auto
0.000119 [D5] do_upsconf_args: call main_arg()
0.000131 [D3] main_arg: var='port' val='auto'
0.000158 [D5] send_to_all: SETINFO driver.parameter.port "auto"
0.000185 [D5] do_upsconf_args: confupsname=ups, var=user, val=root
0.000199 [D5] do_upsconf_args: call main_arg()
0.000212 [D3] main_arg: var='user' val='root'
0.000225 [D1] testval_reloadable: setting 'user' exists and differs: new
value 'root' vs. 'nut'
0.000238 [D1] Overriding previously specified user 'nut' with 'root' specified for driver section
0.000270 [D1] Network UPS Tools version 2.8.1 (release/snapshot of 2.8.1) built with gcc (Debian 14.2.0-19) 14.2.0 and configured with flags: --build=aarch64-linux-gnu --prefix=/usr --includedir=${prefix}/include --mandir=${prefix}/share/man --infodir=${prefix}/share/info --sysconfdir=/etc --localstatedir=/var --disable-option-checking --disable-silent-rules --libdir=${prefix}/lib/aarch64-linux-gnu --runstatedir=/run --disable-maintainer-mode --disable-dependency-tracking --prefix=/usr --sysconfdir=/etc/nut --includedir=/usr/include --mandir=/usr/share/man --libdir=${prefix}/lib/aarch64-linux-gnu --libexecdir=/usr/libexec --with-ssl --with-nss --with-cgi --with-dev --enable-static --with-statepath=/run/nut --with-altpidpath=/run/nut --with-drvpath=/usr/lib/nut --with-cgipath=/usr/lib/cgi-bin/nut --with-htmlpath=/usr/share/nut/www --with-pidpath=/run/nut --datadir=/usr/share/nut --with-pkgconfig-dir=/usr/lib/aarch64-linux-gnu/pkgconfig --with-user=nut --with-group=nut --with-udev-dir=/usr/lib/udev --with-systemdsystemunitdir=/usr/lib/systemd/system --with-systemdshutdowndir=/usr/lib/systemd/system-shutdown --with-systemdtmpfilesdir=/usr/lib/tmpfiles.d --with-python=python3 --with-python3=/usr/bin/python3 --with-doc=man
0.000342 [D1] debug level is '5'
0.000361 [D5] send_to_all: SETINFO driver.debug "5"
0.000377 [D5] send_to_all: SETFLAGS driver.debug RW NUMBER
0.002619 [D1] Succeeded to become_user(root): now UID=0 GID=0
0.002705 [D5] send_to_all: SETINFO device.type "ups"
0.002725 [D5] send_to_all: SETINFO driver.state "init.device"
0.002740 [D1] upsdrv_initups (non-SHUT)...
0.002754 [D2] Initializing an USB-connected UPS with library libusb-1.0.28 (API: 0x100010a) (NUT subdriver name='USB communication driver (libusb 1.0)' ver='0.46')
0.008856 [D2] Checking device 1 of 2 (1D6B/0003)
0.034527 [D1] nut_libusb_open: invalid libusb bus number 0
0.035013 [D2] - VendorID: 1d6b
0.035043 [D2] - ProductID: 0003
0.035062 [D2] - Manufacturer: Linux 6.18.34-current-meson64 xhci-hcd
0.035086 [D2] - Product: xHCI Host Controller
0.035101 [D2] - Serial Number: xhci-hcd.1.auto
0.035116 [D2] - Bus: 002
0.035129 [D2] - Bus Port: unknown
0.035147 [D2] - Device: 001
0.035161 [D2] - Device release number: 0618
0.035175 [D2] Trying to match device
0.035195 [D2] match_function_subdriver (non-SHUT mode): matching a device...
0.035225 [D2] match_function_subdriver (non-SHUT mode): failed to match a subdriver to vendor and/or product ID
0.035242 [D2] Device does not match - skipping
0.035287 [D2] Checking device 2 of 2 (1D6B/0002)
6.482574 [D1] nut_libusb_open: invalid libusb bus number 0
83.858558 [D2] - VendorID: 1d6b
83.859395 [D2] - ProductID: 0002
83.860200 [D2] - Manufacturer: Linux 6.18.34-current-meson64 xhci-hcd
83.860222 [D2] - Product: xHCI Host Controller
83.860233 [D2] - Serial Number: xhci-hcd.1.auto
83.860241 [D2] - Bus: 001
83.860250 [D2] - Bus Port: unknown
83.860259 [D2] - Device: 001
83.860267 [D2] - Device release number: 0618
83.860275 [D2] Trying to match device
83.860287 [D2] match_function_subdriver (non-SHUT mode): matching a device...
83.860309 [D2] match_function_subdriver (non-SHUT mode): failed to match a subdriver to vendor and/or product ID
83.860319 [D2] Device does not match - skipping
89.039367 [D2] libusb1: No appropriate HID device found
89.040205 libusb1: Could not open any HID devices: insufficient permissions on everything
89.040223 No matching HID UPS found
89.040248 [D5] send_to_all: SETINFO driver.state "cleanup.exit"
89.040269 upsnotify: notify about state 4 with libsystemd: was requested,
but not running as a service unit now, will not spam more about it
89.040286 upsnotify: failed to notify about state 4: no notification tech
defined, will not spam more about it