XFCE Settings Critical Functionality Broken with UPower enabled

[Elliot]

Hello,

Ever since the release of 4.14 there has been a bug with XFCE Settings 
where, after suspending a laptop by closing the lid, the screen will 
stay blank after logging in with light-locker or before logging in with 
xfce4-screensaver. I have reported this bug on GitLab here: 
<https://gitlab.xfce.org/xfce/xfce4-settings/-/issues/222>

After some more testing, I've found that this is due to something with 
UPower. If you want the specific details, it's all in the report and 
its comments.  Either way, to fix this, someone more knowledgeable than 
myself would need to take a look at the debug output/errors. However, 
if nobody has time or enough knowledge on the subject, having UPower 
support disabled by default would most certainly fix this issue for the 
time being.

The reason why I am suggesting dropping this functionality at this 
point is that this issue has very severe implications for XFCE as a 
project. This issue seems to critically affect all laptop (likely a 
major part of XFCE's users) users and has been around for almost a 
year.  At this point, this really just needs to be fixed as soon as 
possible.

Thanks for taking the time to read this,

Elliot


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