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[Launchpad Bug Tracker <1439361@xxxxxxxxxxxxxxxxxx>]

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Hello,

my new laptop is a Dell XPS 11, with no ethernet port. So I bought an
USB to Ethernet adapter. It also has two more USB 3 ports. When
connected on my laptop, I'm unable to acquire an IP through my DHCP, but
a new network interface is automatically raised. I tried to set manually
an IP, but I cannot ping any system which normally honors ping requests.
The surprising point is that when I connect the same adapter on an old
laptop (Dell E4300), running the same version of Ubuntu 14.04 (both
systems are fully up-to-date), it perfectly works ! The only difference
I can see is that my old laptop has only USB 2 ports...

Additionally, the USB hub works on both computers, and I connected the adapter to 2 desktop computers :
- one with an additional USB 3 card : it works ;
- one with embedded USB 3 port : same error as with the modern laptop.

So it really seems to be a problem related to the way USB 3 is handled
by Ubuntu 14.04, but perhaps only with some specific chipsets. I cannot
find what chipset is on the mainboard of my laptop (it is an Intel one,
for sure, since the CPU is a Core i5-4210Y), but my desktop PC as an
Intel Z97 chipset.

Here is what I read tailing kern.log when connecting the adapter. Note the errors near the end :
Apr  1 21:00:57 XPS11 kernel: [ 1360.356635] usb 2-1: new high-speed USB device number 5 using xhci_hcd
Apr  1 21:00:57 XPS11 kernel: [ 1360.385156] usb 2-1: New USB device found, idVendor=05e3, idProduct=0610
Apr  1 21:00:57 XPS11 kernel: [ 1360.385165] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Apr  1 21:00:57 XPS11 kernel: [ 1360.385170] usb 2-1: Product: USB2.0 Hub
Apr  1 21:00:57 XPS11 kernel: [ 1360.385174] usb 2-1: Manufacturer: GenesysLogic
Apr  1 21:00:57 XPS11 kernel: [ 1360.386453] hub 2-1:1.0: USB hub found
Apr  1 21:00:57 XPS11 kernel: [ 1360.387717] hub 2-1:1.0: 4 ports detected
Apr  1 21:00:57 XPS11 kernel: [ 1360.508766] usb 3-1: new SuperSpeed USB device number 2 using xhci_hcd
Apr  1 21:00:57 XPS11 kernel: [ 1360.528979] usb 3-1: New USB device found, idVendor=05e3, idProduct=0616
Apr  1 21:00:57 XPS11 kernel: [ 1360.528993] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Apr  1 21:00:57 XPS11 kernel: [ 1360.528999] usb 3-1: Product: USB3.0 Hub
Apr  1 21:00:57 XPS11 kernel: [ 1360.529005] usb 3-1: Manufacturer: GenesysLogic
Apr  1 21:00:57 XPS11 kernel: [ 1360.532085] hub 3-1:1.0: USB hub found
Apr  1 21:00:57 XPS11 kernel: [ 1360.532498] hub 3-1:1.0: 4 ports detected
Apr  1 21:00:58 XPS11 kernel: [ 1360.805848] usb 3-1.1: new SuperSpeed USB device number 3 using xhci_hcd
Apr  1 21:00:58 XPS11 kernel: [ 1360.821076] usb 3-1.1: New USB device found, idVendor=0bda, idProduct=8153
Apr  1 21:00:58 XPS11 kernel: [ 1360.821088] usb 3-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=6
Apr  1 21:00:58 XPS11 kernel: [ 1360.821094] usb 3-1.1: Product: USB 10/100/1000 LAN
Apr  1 21:00:58 XPS11 kernel: [ 1360.821099] usb 3-1.1: Manufacturer: Realtek
Apr  1 21:00:58 XPS11 kernel: [ 1360.821104] usb 3-1.1: SerialNumber: 000001000000
Apr  1 21:01:03 XPS11 kernel: [ 1365.846558] usb 3-1.1: Disable of device-initiated U1 failed.
Apr  1 21:01:03 XPS11 kernel: [ 1365.850638] usb 3-1.1: Disable of device-initiated U2 failed.
Apr  1 21:01:03 XPS11 kernel: [ 1365.854180] usb 3-1.1: Set SEL for device-initiated U1 failed.
Apr  1 21:01:03 XPS11 kernel: [ 1365.857613] usb 3-1.1: Set SEL for device-initiated U2 failed.
Apr  1 21:01:03 XPS11 kernel: [ 1365.857682] usbcore: registered new interface driver cdc_ether
Apr  1 21:01:03 XPS11 kernel: [ 1365.865825] xhci_hcd 0000:00:14.0: URB transfer length is wrong, xHC issue? req. len = 0, act. len = 4294967288
Apr  1 21:01:03 XPS11 kernel: [ 1365.887328] usb 3-1.1: Set SEL for device-initiated U1 failed.
Apr  1 21:01:03 XPS11 kernel: [ 1365.890841] usb 3-1.1: Set SEL for device-initiated U2 failed.
Apr  1 21:01:03 XPS11 kernel: [ 1365.890862] r815x: probe of 3-1.1:2.0 failed with error -71
Apr  1 21:01:03 XPS11 kernel: [ 1365.890922] usbcore: registered new interface driver r815x

uname -ar output :
Linux XPS11 3.13.0-48-generic #80-Ubuntu SMP Thu Mar 12 11:16:15 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

On my old laptop, here is the kern.log relevant parts :
Apr  1 21:24:13 stilgar-e4300 kernel: [11988.964194] usb 2-4: new high-speed USB device number 8 using ehci-pci
Apr  1 21:24:13 stilgar-e4300 kernel: [11989.107799] usb 2-4: New USB device found, idVendor=05e3, idProduct=0610
Apr  1 21:24:13 stilgar-e4300 kernel: [11989.107805] usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Apr  1 21:24:13 stilgar-e4300 kernel: [11989.107808] usb 2-4: Product: USB2.0 Hub
Apr  1 21:24:13 stilgar-e4300 kernel: [11989.107812] usb 2-4: Manufacturer: GenesysLogic
Apr  1 21:24:13 stilgar-e4300 kernel: [11989.109222] hub 2-4:1.0: USB hub found
Apr  1 21:24:13 stilgar-e4300 kernel: [11989.110586] hub 2-4:1.0: 4 ports detected
Apr  1 21:24:14 stilgar-e4300 kernel: [11989.396649] usb 2-4.1: new high-speed USB device number 9 using ehci-pci
Apr  1 21:24:14 stilgar-e4300 kernel: [11989.489395] usb 2-4.1: New USB device found, idVendor=0bda, idProduct=8153
Apr  1 21:24:14 stilgar-e4300 kernel: [11989.489400] usb 2-4.1: New USB device strings: Mfr=1, Product=2, SerialNumber=6
Apr  1 21:24:14 stilgar-e4300 kernel: [11989.489404] usb 2-4.1: Product: USB 10/100/1000 LAN
Apr  1 21:24:14 stilgar-e4300 kernel: [11989.489408] usb 2-4.1: Manufacturer: Realtek
Apr  1 21:24:14 stilgar-e4300 kernel: [11989.489411] usb 2-4.1: SerialNumber: 000001000000
Apr  1 21:24:14 stilgar-e4300 kernel: [11989.490346] r815x 2-4.1:2.0 eth0: register 'r815x' at usb-0000:00:1d.7-4.1, RTL8153 ECM Device, 00:e0:4c:68:08:75

Thanks in advance for your attention. Best regards,

Al

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bot-comment
-- 
USB to Ethernet adapter not working on USB 3 port but OK on USB 2 port 
https://bugs.launchpad.net/bugs/1439361
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