NMI Watchdog Hard Lockup error on a Dell M15 with NVIDIA GTX 1660 (Turing)

Originally created by @goupille on #16726 (Redmine)

a user reported facing the following issue when trying to start Tails on a Dell M15 with an 8th gen i7 and a NVidia GTX 1660 (full specs :https://www.dell.com/support/manuals/us/en/04/alienware-m15-laptop/alienware-m15-setup-and-specifications/):

NMI watchdog: Watchdog detected hard LOCKUP on cpu XX

it looks a lot like #15116 (closed), but the workarounds proposed for the Dell XPS 9560 are failing with this error :

ACPI BIOS Error (bug): Failure creating [\SB.PCI0.SAT0.PRT4._GTF], AE_ALREADY_EXISTS

Edited May 15, 2020 by goupille

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