According to Lenovo the bios expects OS to re-initialize USB controller/USB Port/USB device besides controlling the power as ACPI defines.
Given this it is looking like a kernel issue not repowering up USB.
@bbandi Can you update your bios to 1.15 & see what happens when you try to reload ehci.
According to Lenovo the bios expects OS to re-initialize USB controller/USB Port/USB
device besides controlling the power as ACPI defines.
Given this it is looking like a kernel issue not repowering up USB.
@bbandi
Can you update your bios to 1.15 & see what happens when you try to reload ehci.