Alessandro ZappalĂ , regarding your comments https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1067452/comments/20 : >"- I have the same problem with every usb drive, but not with my external HDD. -my external HDD filesystem is FAT"
Could you please plug in your external HDD, unplug all other USB devices, execute the following at a terminal, and post the results to this report: lsusb >"-as I wrote in the bug description, i tested usb drives with FAT and ext4 filesystem. The problem occurs with both." I did notice this. However, I was looking for if you had tested NTFS or ext3. It's not a requirement if you have not tested this, I was just curious. >"-I tested both USB 2.0 and USB 3.0 ports and the result is the same." Thank you for noting this. Could you please boot into the newest mainline kernel, and gather a USB trace for a more in depth analysis following http://www.kernel.org/doc/Documentation/usb/usbmon.txt ? Thank you for your understanding. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1067452 Title: Low speed when transferring files over USB drive (FAT) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1067452/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs