On 06/02/2017 12:27 AM, Kai-Heng Feng wrote:
> Sounds like there are two problems here,
> 1. The external drive does not work well in UAS mode (see previous comment)
> 2. The VIA hub has a remote wakeup bug.
>
> uname -a
Linux P9X79 4.12.0-041200rc2-generic #201705212331 SMP Mon May 22
03:32:26 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
I connected the WD My Passport to a motherboard USB 3.0 port. It was
recognized. A level 0 dump completed:
DUMP: 160901600 blocks (157130.47MB) on 1 volume(s)
DUMP: finished in 1970 seconds, throughput 81675 kBytes/sec
Note: the tunables are at the kernel default settings.
Remote wakeup: tested with a Broadcom Bluetooth device.
> lsusb
Bus 002 Device 003: ID 0cf3:3005 Qualcomm Atheros Communications AR3011
Bluetooth
Bus 002 Device 002: ID 8087:0024 Intel Corp.Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 009: ID 1058:25e2 Western Digital Technologies, Inc.
Bus 006 Device 004: ID 2109:0812 VIA Labs, Inc. VL812 Hub
Bus 006 Device 003: ID 2109:0812 VIA Labs, Inc. VL812 Hub
Bus 006 Device 002: ID 2109:0810 VIA Labs, Inc. VL81x Hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 004: ID 2109:2812 VIA Labs, Inc. VL812 Hub
Bus 005 Device 003: ID 2109:2812 VIA Labs, Inc. VL812 Hub
Bus 005 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 045e:00cb MicrosoftCorp. Basic Optical Mouse v2.0
Bus 001 Device 003: ID 045e:0768 Microsoft Corp. Sidewinder X4
Bus 001 Device 002: ID 8087:0024 Intel Corp.Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Connect a bluetooth device to the external USB 3.0 hub.
> lsusb | grep Bluetooth
Bus 002 Device 003: ID 0cf3:3005 Qualcomm Atheros Communications AR3011
Bluetooth
Bus 005 Device 007: ID 0a5c:21e8 Broadcom Corp. BCM20702A0 Bluetooth 4.0
A device other than the WD My Passport is recognized upon connection to
the external USB 3.0 hub.
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https://bugs.launchpad.net/bugs/1693842
Title:
USB 3.0 Disk Drive Not Recognized.
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