@Hanine: do you have ironhide (https://launchpad.net/~mj-casalogic/+archive/ironhide/) or at least acpi-call installed? If not, the nvidia card on the XPS 15 will be on permanently and it draws a heck of lot of power even though it is doing nothing.
@Hanine: do you have ironhide (https:/ /launchpad. net/~mj- casalogic/ +archive/ ironhide/) or at least acpi-call installed? If not, the nvidia card on the XPS 15 will be on permanently and it draws a heck of lot of power even though it is doing nothing.