Hello again! I apologize for never updating this bug report again. Right after my last response I had a series of bad life events one after another for a few months that kept me away.
I'm happy to report that this no longer seems like an issue for me in Ubuntu 18.04. USB speeds are maxing out the devices I've tested. Please close this submission. ** Changed in: linux (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1792045 Title: Ubuntu 18.04 external USB hard drive performance 1/10th of 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1792045/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs