Hello, on my Laptops xfce4-power-manager is adjusted to go into suspend mode after 15 minutes of inactivity (in battery mode as well as in power-supply mode). This does not work at all which means noting happens and the machine is still running. I checked dmesg --> noting related found. On the other hand the suspend functions works properly if triggered through the xfce-logout-button. For testing purposes I activated suspend by closing the lid (also a feature of the power-manager). To my surprise this works like a charm. Additionally I found this bug report which seems near to mine. https://bugzilla.xfce.org/show_bug.cgi?id=12317 Best regards
Tested things again and after all it looks like that the problem occurs only in "battery mode" and not in "power-supply mode". Additionally I tested the suspend due to a low battery status and this works either. To sum up: Only the suspend due to inactivity in "battery mode" is broken.
I'm sorry that we haven't been able to look into this timely. xfpm had a few releases since then. Are you able to reproduce the problem with 1.7.0?