** Also affects: linux (Ubuntu Trusty)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1322409
Title:
Usb 3.0 device is recognized as usb 2.0 device on usb 3.0 port if the
port has been used by usb 3.0 device after booted
Status in amd:
Triaged
Status in HWE Next Project:
In Progress
Status in “linux” package in Ubuntu:
In Progress
Status in “linux” source package in Trusty:
New
Bug description:
Summary:
After booted, when using usb 3.0 device first time, it can be recognized as
usb 3.0 device correctly.
But after that, usb 3.0 device are recognized as usb 2.0 device on same port.
Usb 3.0 device should be "SuperSpeed USB", "high-speed USB device" means usb
2.0 device.
Information in dmesg:
[ 86.462345] usb 6-1: new SuperSpeed USB device number 2 using xhci_hcd
[ 86.479502] usb 6-1: Parent hub missing LPM exit latency info. Power
management will be impacted.
[ 86.481741] usb 6-1: New USB device found, idVendor=125f, idProduct=312b
[ 86.481748] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 86.481754] usb 6-1: Product: ADATA USB Flash Drive
[ 86.481758] usb 6-1: Manufacturer: ADATA
[ 86.481763] usb 6-1: SerialNumber: 23221115500102A9
[ 86.542060] Initializing USB Mass Storage driver...
[ 86.542305] scsi2 : usb-storage 6-1:1.0
[ 86.542453] usbcore: registered new interface driver usb-storage
[ 86.542457] USB Mass Storage support registered.
[ 87.541874] scsi 2:0:0:0: Direct-Access ADATA USB Flash Drive 1.00 PQ: 0
ANSI: 6
[ 87.542976] sd 2:0:0:0: [sdb] 15433728 512-byte logical blocks: (7.90
GB/7.35 GiB)
[ 87.543126] sd 2:0:0:0: [sdb] Write Protect is off
[ 87.543133] sd 2:0:0:0: [sdb] Mode Sense: 23 00 00 00
[ 87.543281] sd 2:0:0:0: [sdb] Write cache: disabled, read cache: disabled,
doesn't support DPO or FUA
[ 87.543635] sd 2:0:0:0: Attached scsi generic sg2 type 0
[ 87.548847] sdb: sdb1 sdb2 sdb3
[ 87.549916] sd 2:0:0:0: [sdb] Attached SCSI removable disk
[ 104.344017] WARNING! power/level is deprecated; use power/control instead
[ 104.498216] usb 6-1: USB disconnect, device number 2
[ 113.833843] usb 5-1: new high-speed USB device number 3 using xhci_hcd
[ 113.884757] usb 5-1: New USB device found, idVendor=125f, idProduct=312b
[ 113.884766] usb 5-1: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 113.884772] usb 5-1: Product: ADATA USB Flash Drive
[ 113.884776] usb 5-1: Manufacturer: ADATA
[ 113.884781] usb 5-1: SerialNumber: 23221115500102A9
[ 113.886137] scsi3 : usb-storage 5-1:1.0
[ 114.886319] scsi 3:0:0:0: Direct-Access ADATA USB Flash Drive 1.00 PQ: 0
ANSI: 6
[ 114.888157] sd 3:0:0:0: Attached scsi generic sg2 type 0
[ 114.889087] sd 3:0:0:0: [sdb] 15433728 512-byte logical blocks: (7.90
GB/7.35 GiB)
[ 114.889289] sd 3:0:0:0: [sdb] Write Protect is off
[ 114.889302] sd 3:0:0:0: [sdb] Mode Sense: 23 00 00 00
[ 114.889918] sd 3:0:0:0: [sdb] Write cache: disabled, read cache: disabled,
doesn't support DPO or FUA
[ 114.895224] sdb: sdb1 sdb2 sdb3
[ 114.896844] sd 3:0:0:0: [sdb] Attached SCSI removable disk
Steps:
1. Boot into system
2. Connect a usb 3.0 storge device to usb 3.0 port
3. Disconnect the device
4. Connect a usb 3.0 storge device(you can use the same device) to same port
again
Expected results: Usb 3.0 device is recognized as usb 3.0 device
Actual results: Usb 3.0 device is recognized as usb 2.0 device
Image: stella-yuanli-precise-amd64-20131114-0
CPU: AMD A4-5000 APU with Radeon(TM) HD Graphics (4x)
GPU: 00:01.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] Kabini [Radeon HD 8330]
Manufacturer: Hewlett-Packard
ProductName: HP 14 Notebook PC
BiosVersion: F.07
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