I have a computer, it is an ultrabook (fujitsu UH572). This computer doesn't have any problem when installing ubuntu into internal SSD. But when I install the ubuntu 14.04.2 on an external USB 3 HDD (it is a SATA3 to USB3 HDD adapter with ASMedia chipset), and then perform a system suspend, the system suspends successfully. But if I wake up the system, the system wakes up successfully, but dmesg
has a lot of I/O errors, and I can't load or save anything into my root partition (/), for example, when I try to save the output of dmesg to my home directory (which resides in my root partition), the command hangs and displays a lot of I/O error.
How do I enable the system to suspend correctly when I boot from the external HDD? Thank you for the asistance in advance.