The USB is the one on right side. There are one USB2 and two USB3. In USB2 i have USB mouse and on USB3 i have cooler. Nothing else. USB3 is also where i plug in my USB HDD. I don't know what could be the problem, cause i do no t use any USB hubs.
Maybe it is relevant that i have dual boot with Windows 7.
The only thing that comes to mind is that when i boot with USB HDD plugged in, Ubuntu tries to boot from that USB HDD and fails. I don't know what Ubuntu "thinks" is my laptop cooler.
The USB is the one on right side. There are one USB2 and two USB3. In USB2 i have USB mouse and on USB3 i have cooler. Nothing else. USB3 is also where i plug in my USB HDD. I don't know what could be the problem, cause i do no t use any USB hubs.
Maybe it is relevant that i have dual boot with Windows 7.
The only thing that comes to mind is that when i boot with USB HDD plugged in, Ubuntu tries to boot from that USB HDD and fails. I don't know what Ubuntu "thinks" is my laptop cooler.