When I went on the linux machine, I found it to be in standby mode, and now the disk disappeared.
I tried to restart the USB functionality and dmesg | tail shows:
[206287.696069] usb 1-3: reset high speed USB device using ehci_hcd and address 16
[206296.868075] usb 1-3: device descriptor read/64, error -32
[206306.040068] usb 1-3: device descriptor read/64, error -32
[206306.256058] usb 1-3: reset high speed USB device using ehci_hcd and address 16
[206311.664072] usb 1-3: device not accepting address 16, error -110
[206311.776081] usb 1-3: reset high speed USB device using ehci_hcd and address 16
[206325.232071] usb 1-3: reset high speed USB device using ehci_hcd and address 16
[206340.344052] usb 1-3: device descriptor read/64, error -110
[206347.560360] usb 1-3: USB disconnect, address 16
[206347.560463] scsi 5:0:0:0: Device offlined - not ready after error recovery
This is the part after I switched on USB:
[206414.584066] usb 1-3: new high speed USB device using ehci_hcd and address 17
[206414.724050] usb-storage 1-3:1.0: Quirks match for vid ed06 pid 4500: 1000
[206414.729255] scsi6 : usb-storage 1-3:1.0
lsusb doesn't show it
fdisk -l neither
argh
looks like there is some hardware problem ey?