On a Thinkpad W530, with Xfce-power-manager 1.6.1, upon closing and opening the lid, the display turns on for a fraction of a second before it goes blank, then black. Switching to a virtual console terminal is possible, and then switching back to Xorg is possible again (ctrl+alt+f7), however, this is greeted by an unresponsive locked screen. I believe this problem is related to xfce4-power-manager, because I have another, identical Thinkpad W530, running exactly the same BIOS version and Embedded Controller version, both with XFCE 4.12 (both on Debian), but only the laptop with Xfce-power-manager 1.6.1 presents with this particular problem.
I can also add that switching to GNOME resolves the problem completely, this further substantiates the likelihood of this being related to XFCE's power manager.
I can add that this problem also exists on yet another laptop, a Thinkpad X260, also with the latest firmware and latest embedded controller.
This problem also exists on Asus G750JW and behave exactly like described in firs post. But this problem happens only if I enable Display power management option on Display tab. /xfce4-power-manager/dpms-enabled
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