I went to BIOS settings. \Settings\Advanced\USB Configuration
and set "XHCI Hand-off" as [Disabled]. then this bug disappear. My computer information: Master Board: MSI B85i I7-4790K/8G RAM/1T ST1000DX001-1CM162 DISK. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1441104 Title: USB 3.0 storage safely remove issue: re-detect (re-plug-in) the device(that I have removed already) soon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1441104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs