Confirmed issue with slow transfer rates (<1.5 MB/s) for 3 different external USB 2.0 hardisk (toshiba 1 TB, SAMSUNG 512 GB, Hitachi 1 TB) with 3.12.0-4-generic from trusty. It is mainly a bad detection as USB 1.0 instead of USB 2.0 in dmesg (check_highspeed is indeed bogus). I try to test with kernel mainline v3.13-rc1-trusty but I cannot because I am affected by the bug https://bugs.launchpad.net/ubuntu/+source/fglrx- installer/+bug/1254424 in fglrx.
Copy 20 GB takes days, instead of hours for this issue. Thats unacceptable for backups in a company or the medium user with multimedia files. Please Ubuntu or Linux Team, contact with upstream, assign devs and raise with more priority with this bug. Perfomance is a must in GNU/Linux. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/177235 Title: slow USB 2.0 drive: it's mounted as USB 1.0, not USB 2.0! To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177235/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
