HCL - Lenovo Thinkpad P50

[gonzalo-bulnes]

Linking for visibility: two folks have reported freezes on shutdown on some P50 laptops:

Hanging on Shutdown | Thinkpad P50

Hello Folks - I just installed Qubes on a new (to me) P50 with the i7-6820 and 64gb ram. So far, everything works smooth except when I shut down the machine. On shutdown, the screen goes blank, but the backlight keyboard stays powered and it doens’t appear as if the system fully shutdown. A short press of the power button does nothing. A long press of the power button does a forced power-down on the machine and then a short press will restart the machine. Any ideas on why my machine is no l…