1. I tested booting with the kernel option "nomodeset", it made no difference.
2. I tested suspend by writing to /sys/power/pm_test the following successively "freezer", "devices", "platform", "processors", "core". Every single test was successful, ie, the system wake up on its own after 5 seconds. 3. Sometimes I can make the system kind of wake up (the screen turns on after pressing the power button successively), but the system seems unable to read any file on the disk, which makes me wonder if the problem is with the SED (Self Encrypted Drive). -- André Desgualdo Pereira
