I thought that the ppa from xubuntu devs (below) that installs a new version of xfce4-power-manager might have fixed this, but it didn't
https://bugs.launchpad.net/ubuntu/+source/xfce4-power-manager/+bug/1303736/comments/56
I thought that the ppa from xubuntu devs (below) that installs a new version of xfce4-power-manager might have fixed this, but it didn't
https:/ /bugs.launchpad .net/ubuntu/ +source/ xfce4-power- manager/ +bug/1303736/ comments/ 56