Launchpad has imported 15 comments from the remote bug at https://bugzilla.kernel.org/show_bug.cgi?id=220181.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2025-06-01T12:52:21+00:00 6svcyk03 wrote: At boot, I see the undermentioned in red in `dmesg`: > ~~~log > config failed, hub doesn't have any ports! (err -19) > ~~~ I've one entry for each boot in `journalctl`. Using the first section of the error: > ~~~YAML > hub 12-0:1.0 > ~~~ ...I believe that I've ascertained what the cause is. Using `lsusb -t`, I find: > ~~~YAML > /: Bus 012.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/0p, 5000M > ~~~ `Driver=xhci_hcd/0p` means it has 0 ports, which is invalid, hence the error. I tried to `readlink /sys/class/usb_host/usb12` it to ascertain what the cause is, but that fails, because the device unsuccessfully enumerated. Consequently, I used `readlink /sys/bus/usb/devices/usb12` to verify the device ID: > ~~~log > ../../../devices/pci0000:00/0000:00:08.3/0000:5a:00.0/usb12 > ~~~ When known, I used `5a:00.0` to locate the cause with `lspci -s 5a:00.0`: > ~~~YAML > 5a:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Raphael/Granite > Ridge USB 2.0 xHCI > ~~~ It's the virtual "Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge USB 2.0 xHCI" USB controller, not exposing any ports despite the driver purportedly requiring it. However, there obviously aren't ports on a virtual device. At https://discussion.fedoraproject.org/t/what-does-config-failed-hub- doesnt-have-any-ports-err-19-mean/153954, I cite corroborations from Kali Linux, Ubuntu, Debian and Fedora. However, I've also received a personal e-mail from an interested party who claims to reproduce this on openSUSE. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/2 ------------------------------------------------------------------------ On 2025-06-02T07:30:53+00:00 michal.pecio wrote: I recall seeing a thread about it on ArchLinux forum. Posted logs indicated that the xHCI chips in those cases only exposed USB 2.0 ports and hence the USB 3.x bus registered by xhci_hcd has no ports and USB core freaks out. Such controllers are legal and supported, perhaps the driver could be patched not to bother registering 3.x buses for them. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/3 ------------------------------------------------------------------------ On 2025-06-02T10:59:45+00:00 mathias.nyman wrote: xhci "core" driver support hosts with only usb2 ports, (0 ports on usb3 roothub). It's just missing some minor pieces for PCI xHC hosts in xhci-pci.c Patform and MediaTek xHC have the support ready, as can be seen by the "xhci->allow_single_roothub = 1" setting in xhci-plat.c and xhci-mtk.c Or does this xHC host have 0 ports on usb2 roothub as well? Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/4 ------------------------------------------------------------------------ On 2025-06-02T11:10:53+00:00 6svcyk03 wrote: (In reply to Mathias Nyman from comment #2) > Or does this xHC host have 0 ports on usb2 roothub as well? I dare say that I'm operating at the boundaries of my lay man's knowledge as it is. How do you suggest that I ascertain this? Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/5 ------------------------------------------------------------------------ On 2025-06-02T11:54:02+00:00 mathias.nyman wrote: (In reply to Mr. Beedell, Roke Julian Lockhart (RJLB) from comment #3) > (In reply to Mathias Nyman from comment #2) > > > Or does this xHC host have 0 ports on usb2 roothub as well? > > I dare say that I'm operating at the boundaries of my lay man's knowledge as > it is. How do you suggest that I ascertain this? Probably best to take a closer at the xHC port information of this host The reg-ext-protocol:00 and reg-ext-protocol:01 files in debugfs should show all info about the ports the host provides: Example, this machine has only one xHC at PCI address 0000:00:14.0: cat /sys/kernel/debug/usb/xhci/0000:00:14.0/reg-ext-protocol* EXTCAP_REVISION = 0x02000802 EXTCAP_NAME = 0x20425355 EXTCAP_PORTINFO = 0x30010e01 EXTCAP_PORTTYPE = 0x00000000 EXTCAP_MANTISSA1 = 0x000c0021 EXTCAP_MANTISSA2 = 0x05dc0012 EXTCAP_MANTISSA3 = 0x01e00023 EXTCAP_REVISION = 0x03000802 EXTCAP_NAME = 0x20425355 EXTCAP_PORTINFO = 0x10000610 EXTCAP_PORTTYPE = 0x00000000 EXTCAP_MANTISSA1 = 0x00050134 Above shows: EXTCAP_REVISION tells if ports are USB3 or USB2, EXTCAP_PORTNINFO = 0x****AA**, where AA tells us how many ports Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/6 ------------------------------------------------------------------------ On 2025-06-02T12:25:38+00:00 6svcyk03 wrote: "`sudo ls /sys/kernel/debug/usb/xhci/`" returns "`0000:5a:00.0`": ``` 0000:08:00.0 0000:54:00.0 0000:56:00.0 0000:59:00.3 0000:59:00.4 0000:5a:00.0 ``` ...so I tried the problematic port (and a random alternative): ``` #!/usr/bin/env sh sudo cat /sys/kernel/debug/usb/xhci/0000:08:00.0/reg-ext-protocol:00 sudo cat /sys/kernel/debug/usb/xhci/0000:08:00.0/reg-ext-protocol:01 ``` For the problematic port, solely the first command returns: ``` EXTCAP_REVISION = 0x02000402 EXTCAP_NAME = 0x20425355 EXTCAP_PORTINFO = 0x00180101 EXTCAP_PORTTYPE = 0x00000000 ``` For the second command, the file supposedly doesn't exist: > cat: '/sys/kernel/debug/usb/xhci/0000:5a:00.0/reg-ext-protocol:01': No such file or directory This somewhat perplexes me, considering that the random alternative at "`sudo cat /sys/kernel/debug/usb/xhci/0000:08:00.0/reg-ext-protocol:01`" quite happily works: ``` EXTCAP_REVISION = 0x03101402 EXTCAP_NAME = 0x20425355 EXTCAP_PORTINFO = 0x80000203 EXTCAP_PORTTYPE = 0x00000000 EXTCAP_MANTISSA1 = 0x00050134 EXTCAP_MANTISSA2 = 0x000a4135 EXTCAP_MANTISSA3 = 0x04e00126 EXTCAP_MANTISSA4 = 0x09c00127 EXTCAP_MANTISSA5 = 0x13800128 EXTCAP_MANTISSA6 = 0x05b10129 ``` At least, this appears to demonstrate that one port exists, although apologies if I've misunderstood. For reference, I'm using `kernel-6.14.9-300.fc42.x86_64`. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/7 ------------------------------------------------------------------------ On 2025-06-02T13:24:00+00:00 mathias.nyman wrote: This means the xHC controller only has one entry for "supported protocol capability", which lists just one USB2 port. There is no entry at all for USB3 ports The xhci driver needs some minor changes in xhci-pci.c code to make this work properly. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/8 ------------------------------------------------------------------------ On 2025-06-04T13:14:52+00:00 niklas.neronin wrote: Created attachment 308204 Proposed patch to add support for zero USB3 port systems I don't have a system with zero USB3 ports to fully test this patch. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/9 ------------------------------------------------------------------------ On 2025-06-14T19:57:16+00:00 gnw3 wrote: A Fedora user with a system with USB4 ports is seeing `fedora kernel: hub 6-0:1.0: config failed, hub doesn't have any ports! (err -19)`. I wonder if the "the zero USB3 ports" issue is at fault. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/10 ------------------------------------------------------------------------ On 2025-07-02T12:25:29+00:00 nick.kainielsen wrote: I'm in Tumbleweed - or I would be - - My error message reads "[1.361031][T442] hub 6-0:1.3 : config failed hub doesn't have any ports (error -19)" - there's a difference of numbering of the hub. - - My set up : an AMD Ryzen 5 8600G processor mounted on an ASRock A620M Pro RS mother board which uses the AMD A620 chipset. - - Willing to help/test bearing in mind my skills are very limited... which is why I can't format this text Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/11 ------------------------------------------------------------------------ On 2025-07-02T13:32:54+00:00 6svcyk03 wrote: > I can't format this text It's merely CommonMark. You can read the standard online, at https://github.com/commonmark/commonmark- spec/blob/90c06837975098002cc89d3da1be30529919a8a2/spec.txt#L1934-L2356. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/12 ------------------------------------------------------------------------ On 2025-07-08T09:13:52+00:00 nick.kainielsen wrote: The patch seems to work. A member of the openSuse community prepared a KMP (kernel module package) for me containing @Niklas Neronin 's patch and I no longer get the error message. Also, looking at journalctl, the USB ports are enumerated and described as USB3 or 2 where appropriate. It's not the end of my worries - boot hangs again afterwards, whether this is kernel related is yet to ascertain. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/13 ------------------------------------------------------------------------ On 2025-07-08T09:34:14+00:00 niklas.neronin wrote: (In reply to Nick Nielsen from comment #11) > The patch seems to work. > > A member of the openSuse community prepared a KMP (kernel module package) > for me containing @Niklas Neronin 's patch and I no longer get the error > message. > > Also, looking at journalctl, the USB ports are enumerated and described as > USB3 or 2 where appropriate. > > It's not the end of my worries - boot hangs again afterwards, whether this > is kernel related is yet to ascertain. Thank you for testing my patch. If you suspect that the boot hanging issue is related to my patch or the xhci driver, please send over any logs you have, and I'll try to fix it. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/14 ------------------------------------------------------------------------ On 2025-08-22T16:19:55+00:00 grm1 wrote: I found this bug report here through https://bbs.archlinux.org/viewtopic.php?id=302115&p=2 after lookup my journald error "archlinux kernel: hub 6-0:1.0: config failed, hub doesn't have any ports! (err -19)" I tested the patch 0001-usb-xhci-pci-add-support-for-hosts-with-zero- usb3-po.patch 2025-06-04 13:14 UTC, Niklas Neronin. Running archlinux with custom linux 6.16.2-arch1 PKGBUILD to just add the patch. The message disappear and i don't notice any crash. System is "ASRock B650M PG Lightning/B650M PG Lightning, BIOS 3.30 06/16/2025." Thank you Niklas Neronin. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/15 ------------------------------------------------------------------------ On 2025-08-24T23:19:50+00:00 danagoyette wrote: I filed a bug a while ago on the Ubuntu bug tracker with information about the device from a few utilities on Windows, on an X870E Taichi. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466 I should test out the patch sometime this week. What kernel version is the patch for? Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097466/comments/16 ** Changed in: linux Status: Unknown => Fix Released ** Changed in: linux Importance: Unknown => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2097466 Title: Weird AMD "USB 2.0 XHCI" Controller doesn't work To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/2097466/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
