Thank you Claudio Lanconelli for your post #6 which indicated where a patch could be found.
I created a PPA that has that upstream fix applied to the current Kubuntu 18.04 solid package. See: https://launchpad.net/~gedakc/+archive/ubuntu/solid-1804-ppa In my testing the updated packages in my PPA did indeed fix the problem as described in this bug report. Please feel free to try my PPA and let me know if it works for you. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1762163 Title: [Kubuntu 18.04]Device notifier pretends it cannot mount usb device while actually mounting it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/solid/+bug/1762163/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs