Plugging a USB drives makes a "Software Updates Available" notification appear

[Mathieu Comandon]

This is a very strange issue and I'm not sure what package is concerned here. When I plug my USB hard drive, a notification about available Software Updates appears. It seems that this notification is displayed only once per session and as long as updates are actually available but the behavior is consistent, I'll see this notification the second I plug my hard drive in.

Since those two things are completely unrelated, it is very unsettling and I wonder what could be causing it. I haven't noticed anything like this before 16.04 and I haven't noticed this behavior on my desktop computer, only on my laptop (but I don't use my USB HDD as often on my desktop so I'll have to double check).

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: udisks2 2.1.7-1ubuntu1
Uname: Linux 4.6.0-040600-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
CustomUdevRuleFiles: 60-vboxdrv.rules
Date: Mon Jun 13 03:46:49 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-04-21 (418 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326)
MachineType: ASUSTeK COMPUTER INC. UX303LAB
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.6.0-040600-generic root=UUID=dbc84f73-b47d-43bc-ae83-13138bfe6b72 ro quiet splash rootfstype=ext4 "acpi_osi=!Windows 2012" vt.handoff=7
SourcePackage: udisks2
UpgradeStatus: Upgraded to xenial on 2016-04-22 (52 days ago)
dmi.bios.date: 11/27/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX303LAB.202
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX303LAB
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX303LAB.202:bd11/27/2014:svnASUSTeKCOMPUTERINC.:pnUX303LAB:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX303LAB:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: UX303LAB
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

[Mathew Hodson (mhodson)]

Removing usb devices triggers notifications should be fixed with this commit

https://git.gnome.org/browse/gnome-software/commit/?id=a39c27561f47e190fa8eb4164570c55f84928692