[Bug 1516276] [NEW] randomly doesn't detect connected USB devices

[teo1978]

Public bug reported:

- A few minutes ago I had two USB drives (an external hard disk and a pendrive) connected to the computer. I opened Startup Disk Creator, and both USB drives were visible and selectable as target devices. I did nothing and closed Startup Disk Creator
- then I ejected and unplugged the pendrive (only)
- I started Startup Disk Creator again
=> expected: the still-connected external hard disk should be listed as a target
=>observed: it wasn't
- I plugged in the usb pendrive
=> expected: it should have been detected and appear in the list of available target drives
=> observed: it didn't
- then I restarted Disk Creator (at this time, both the usb devices were connected)
=> expected: both drives should be visible
=> observed: none is.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: usb-creator-gtk 0.2.67ubuntu0.1
ProcVersionSignature: Ubuntu 3.19.0-32.37-generic 3.19.8-ckt7
Uname: Linux 3.19.0-32-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.7
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Nov 14 18:54:40 2015
InstallationDate: Installed on 2013-10-11 (764 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: usb-creator
UpgradeStatus: Upgraded to vivid on 2015-08-15 (90 days ago)

** Affects: usb-creator (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug vivid

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https://bugs.launchpad.net/bugs/1516276

Title:
  randomly doesn't detect connected USB devices

Status in usb-creator package in Ubuntu:
  New

Bug description:
  - A few minutes ago I had two USB drives (an external hard disk and a pendrive) connected to the computer. I opened Startup Disk Creator, and both USB drives were visible and selectable as target devices. I did nothing and closed Startup Disk Creator
  - then I ejected and unplugged the pendrive (only)
  - I started Startup Disk Creator again
  => expected: the still-connected external hard disk should be listed as a target
  =>observed: it wasn't
  - I plugged in the usb pendrive
  => expected: it should have been detected and appear in the list of available target drives
  => observed: it didn't
  - then I restarted Disk Creator (at this time, both the usb devices were connected)
  => expected: both drives should be visible
  => observed: none is.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: usb-creator-gtk 0.2.67ubuntu0.1
  ProcVersionSignature: Ubuntu 3.19.0-32.37-generic 3.19.8-ckt7
  Uname: Linux 3.19.0-32-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.7
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sat Nov 14 18:54:40 2015
  InstallationDate: Installed on 2013-10-11 (764 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  SourcePackage: usb-creator
  UpgradeStatus: Upgraded to vivid on 2015-08-15 (90 days ago)

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