Closed Bug 1047341 Opened 10 years ago Closed 6 years ago

[flatfish] Tablet not being seen by lsusb in Ubuntu when Active State Power Management enabled in BIOS

Categories

(Firefox OS Graveyard :: Hardware, defect)

Product:
Firefox OS Graveyard
Component:
Hardware
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

(Not tracked)

Status:
RESOLVED WONTFIX

People

(Reporter: steve, Unassigned)

Details

User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0 (Beta/Release)
Build ID: 20140728123914

Steps to reproduce:

* Boot tablet
* turn off screen blank and lock screen
* connect to laptop running Ubuntu 12.04
* run lsusb


Actual results:

Device list does not included the tablet (Android VID 18d1 DID 0003)


Expected results:

Tablet should be seen
Other devices including Flame work correctly

Tablet IS seen if boot Ubuntu with tablet on and connected. Unplugging it a re plugging it in makes it vanish again.

There were some kernel problems like this but I think have been fixed
Kernel: 3.13.0.32-generic (x64)
Ubuntu: 12.04.4 LTS (as recommended for building firefox OS)
Laptop (Toshiba Satellite RB30-1GZ) has  a USB 3.0 port but it makes no difference which port I use. Also tried changing cable
The problem is removed by changing a BIOS setting: "PCI Express Link Active State Power Management (ASPM)" to disabled.

I suspect the tablet hardware is not handshaking correctly so the laptop thinks it is idle and shuts down the power.

I'll leave this open for now.
Status: UNCONFIRMED → NEW
Ever confirmed: true
Summary: [flatfish] Tablet not being seen by Ubuntu 12.04 when hotplugging → [flatfish] Tablet not being seen by when Active State Power Management enable in BIOS
Summary: [flatfish] Tablet not being seen by when Active State Power Management enable in BIOS → [flatfish] Tablet not being seen by lsusb in Ubuntu when Active State Power Management enabled in BIOS
I reproduced it too. So, yes we can confirm it.
It can be fixed by replugging in usb cable.
Im slightly confused by that fix as it's hotplugging that causes the problem. If tablet is plugged in and on during laptop boot it works. Once unplugged after rebbot I found no amount of replugging fixes it.
Firefox OS is not being worked on
Status: NEW → RESOLVED
Closed: 6 years ago
Resolution: --- → WONTFIX
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