iulian is right. This is all related to POWER.
I had the same problem with a powered USB hub. It didn't work (and made lsusb hang!) and gave the same -110 error in dmesg Until I removed the power from the usb-hub and plugged it in again. At that point the usb-hub still worked for my mice, (but not my external HD, because that required more power). Then I could turn the power on and the hub kept working and the drive also started to work. I've had a similar problem with my printer, which made Ubuntu not boot at all in the past, if it was turned on when booting. But it wasn't until I had this issue with the hub (that works both with and without power) than I could see that enumaration fails on powered USB devices if they were powered on during boot. SO, dear Kernel developers (that are no longer reading this bug, from what I gather) .. the issue is: USB devices that are externally powered, block usb enumeration, if you attach them with the power plugged in. -- USB device not accepting address: error -110 https://bugs.launchpad.net/bugs/54273 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
