Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.1 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc6-unstable/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1454253 Title: external usb breaks suspend Status in linux package in Ubuntu: Incomplete Bug description: After booting xubuntu 15.04 it's possible to suspend it the normal way BUT - only until you've plugged external usb hard drive. After that (even if it was unmounted and removed) it becomes impossible: the system goes to suspend briefly (for bout 1 second) but immediately wakes up for no apparent reason. I suspect there's some weird bug in xfce power management - is there a way to disable it alltogether and rely on systemd directly instead? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454253/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp