In testing this for comparison purposes, I have found an indication of what may be behind this problem:
On nvidia chipsets, this problem occurs. (In my case, nvidia's MCP61 chipset with the ohci_hcd and ehci_hcd drivers) On Intel chipsets, this problem does not occur. (Test case is Intel Corporation 82801JI (ICH10 Family) controllers with the ehci_hcd an duhci_hcd drivers) On the Ubuntu-users discussion list, this has now been confirmed by another user. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/624755 Title: to remove a pen drive have to use "safely remove drive " twice -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs