I have a new ThinkPad T14s AMD 4th gen notebook, and a USB-C ethernet
adapter. I would like to be able to send wake-on-LAN to the notebook
for some uses.
The ethernet adapter also has a USB-C port for power delivery (so it can
also charge the notebook). When the notebook is suspended, the ethernet
link stays up (LEDs are lit on both it and the switch port). It also
shows support for wake-on-LAN, defaulting to magic packet mode.
I tried the "old-style" /proc/acpi/wakeup (which shows enabled for the
USB in question) as well as /sys/bus/usb/devices/*/power/wakeup (which
all defaulted to disabled, but I enabled them too). However, nothing
seemed to work.
I have other systems with built-in/PCIe NICs that I can wake; it's just
this one with the USB (because no built-in NIC) that's a problem. The
BIOS has a setting for USB wake-on-LAN with the official dock (which was
enabled), but I didn't see anything else that looked relevant.
Any suggestions?
--
Chris Adams <linux(a)cmadams.net>
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