I am having exactly the same issue, although it doesn't seem to be related to any panel-stuff in my case. It appeared yesterday, probably after installing updates from the last two weeks.
When attempting to shut down, nothing appears in /var/log/syslog, and no new output is added to dmesg.
I am having exactly the same issue, although it doesn't seem to be related to any panel-stuff in my case. It appeared yesterday, probably after installing updates from the last two weeks.
When attempting to shut down, nothing appears in /var/log/syslog, and no new output is added to dmesg.