New subject: [Bug 1197477] network port on monitor integrated usb hub never detects a link

24 Mar 2022

      http://bugzilla.opensuse.org/show_bug.cgi?id=1197477

            Bug ID: 1197477
           Summary: network port on monitor integrated usb hub never
                    detects a link
    Classification: openSUSE
           Product: openSUSE Distribution
           Version: Leap 15.4
          Hardware: x86-64
                OS: Other
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Kernel
          Assignee: kernel-bugs@opensuse.org
          Reporter: josua.m@t-online.de
        QA Contact: qa-bugs@suse.de
          Found By: ---
           Blocker: ---

Greetings everybody!

I recently got a new Monitor on my desk with an integrated USB-3.0 Hub and an
integrated RJ45 network interface.

But with openSUSE Leap (both 15.3 and 15.4-Beta), the system never detects a
link - as shown by the ethtool output below:

sudo ethtool usb0
[sudo] Passwort f�r root: 
Settings for usb0:
        Current message level: 0x00000007 (7)
                               drv probe link
        Link detected: no

I have tested this with two laptops:
- An ASUS UX331UN (i7-8250U) running Leap 15.3
- An ROG G14 (Ryzen 5800) running Leap 15.4 Beta

I have also tested 2 other operating systems
- On Windows the interface works
- On Ubuntu Focal the interface works

Very rarely, a link is detected for a very short time, leading to
networkmanager applet indicating connection attempt for a second or two. I
caputres such a case in the dmesg below:

[11867.152288] usb 1-3: new high-speed USB device number 15 using xhci_hcd
[11867.302285] usb 1-3: New USB device found, idVendor=0424, idProduct=2806,
bcdDevice= 2.10
[11867.302292] usb 1-3: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[11867.302295] usb 1-3: Product: USB2806 Smart Hub
[11867.302298] usb 1-3: Manufacturer: Microchip
[11867.304310] hub 1-3:1.0: USB hub found
[11867.304698] hub 1-3:1.0: 6 ports detected
[11867.432196] usb 2-4: new SuperSpeed Gen 1 USB device number 9 using xhci_hcd
[11867.456449] usb 2-4: New USB device found, idVendor=0424, idProduct=5806,
bcdDevice= 2.10
[11867.456457] usb 2-4: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[11867.456462] usb 2-4: Product: USB5806 Smart Hub
[11867.456465] usb 2-4: Manufacturer: Microchip
[11867.457681] hub 2-4:1.0: USB hub found
[11867.457710] hub 2-4:1.0: 5 ports detected
[11867.600165] usb 1-3.6: new high-speed USB device number 16 using xhci_hcd
[11867.704259] usb 1-3.6: New USB device found, idVendor=0424, idProduct=284c,
bcdDevice= 2.00
[11867.704266] usb 1-3.6: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[11867.704269] usb 1-3.6: Product: Hub Feature Controller
[11867.704272] usb 1-3.6: Manufacturer: Microchip
[11867.708519] hid-generic 0003:0424:284C.0005: hiddev96,hidraw1: USB HID v1.10
Device [Microchip Hub Feature Controller] on usb-0000:00:14.0-3.6/input1
[11867.780407] usb 2-4.3: new SuperSpeed Gen 1 USB device number 10 using
xhci_hcd
[11867.800927] usb 2-4.3: New USB device found, idVendor=0bda, idProduct=8153,
bcdDevice=33.00
[11867.800933] usb 2-4.3: New USB device strings: Mfr=1, Product=2,
SerialNumber=6
[11867.800936] usb 2-4.3: Product: USB 10/100/1000 LAN
[11867.800939] usb 2-4.3: Manufacturer: Realtek
[11867.800941] usb 2-4.3: SerialNumber: 0033000001
[11867.825408] cdc_ncm 2-4.3:2.0: MAC-Address: b0:4f:13:d7:59:ae
[11867.825414] cdc_ncm 2-4.3:2.0: setting rx_max = 16384
[11867.825522] cdc_ncm 2-4.3:2.0: setting tx_max = 16384
[11867.826100] cdc_ncm 2-4.3:2.0 usb0: register 'cdc_ncm' at
usb-0000:00:14.0-4.3, CDC NCM, b0:4f:13:d7:59:ae
[11867.972746] usb 1-3.6: USB disconnect, device number 16
[11868.208085] usb 1-3.6: new high-speed USB device number 17 using xhci_hcd
[11868.312781] usb 1-3.6: New USB device found, idVendor=0424, idProduct=2840,
bcdDevice= 2.10
[11868.312788] usb 1-3.6: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[11868.312792] usb 1-3.6: Product: Hub Feature Controller
[11868.312796] usb 1-3.6: Manufacturer: Microchip
[11870.916715] cdc_ncm 2-4.3:2.0 usb0: 1000 mbit/s downlink 1000 mbit/s uplink
[11871.172732] IPv6: ADDRCONF(NETDEV_CHANGE): usb0: link becomes ready
[11888.115889] usb 1-3.6: reset high-speed USB device number 17 using xhci_hcd
[11888.221821] usb 1-3.6: device firmware changed
[11888.221922] usb 1-3.6: USB disconnect, device number 17
[11888.303624] usb 1-3.6: new high-speed USB device number 18 using xhci_hcd
[11888.407663] usb 1-3.6: New USB device found, idVendor=0424, idProduct=284c,
bcdDevice= 2.00
[11888.407670] usb 1-3.6: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[11888.407674] usb 1-3.6: Product: Hub Feature Controller
[11888.407677] usb 1-3.6: Manufacturer: Microchip
[11888.411497] hid-generic 0003:0424:284C.0006: hiddev96,hidraw1: USB HID v1.10
Device [Microchip Hub Feature Controller] on usb-0000:00:14.0-3.6/input1

Also adding an lsusb:
Bus 002 Device 010: ID 0bda:8153 Realtek Semiconductor Corp. RTL8153 Gigabit
Ethernet Adapter
Bus 002 Device 009: ID 0424:5806 Microchip Technology, Inc. (formerly SMSC)
USB5806 Smart Hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 8087:0a2b Intel Corp. Bluetooth wireless interface
Bus 001 Device 002: ID 13d3:5a09 IMC Networks USB2.0 VGA UVC WebCam
Bus 001 Device 018: ID 0424:284c Microchip Technology, Inc. (formerly SMSC) Hub
Feature Controller
Bus 001 Device 015: ID 0424:2806 Microchip Technology, Inc. (formerly SMSC)
USB2806 Smart Hub
Bus 001 Device 006: ID 0781:55a1 SanDisk Corp. Cruzer Spark
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I'd be happy to do experiments if somebody can point me in a meaningful
direction on how to approach this issue.

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[Bug 1197477] New: network port on monitor integrated usb hub never detects a link

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