I have solved this problem on my system by replacing my USB 2.0 PCI card. I had this problem with multiple hard drives connected to a USB2.0 PCI card in my home "server" (just a headless desktop machine serving data and printers to my home network).
My old USB 2.0 card was a CompUSA brand card with an NEC chipset. I just replaced this with another no-name card which has a VIA chipset and the problem seems to have been solved! I'm not sure how helpful this information will be, especially for those with onboard USB 2.0 problems, but perhaps this information could help developers narrow down the real issue. -- ehci_hcd module causes I/O errors in USB 2.0 devices https://bugs.launchpad.net/bugs/88746 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
