(In reply to Oliver Neukum from comment #5) > 1. Do devices attached before going to sleep keep working? > 2. Please attach dmesg and the output of "lspci -v" before and after > sleeping. Hi Oliver, 1. If the usb device(pen-drive in this case) is attached to the usb 2.0 port before putting the system to sleep, it works fine. I tried removing and re-inserting it into a different usb 2.0 port and saw that it was mounted. 2. Attached the outputs of the commands as a zip. The filenames are self explanatory.