On 27.11.2016 10:55, Yves-Alexis Perez wrote: > On Sat, 2016-11-26 at 11:46 +0100, Philipp Klaus Krause wrote: >> I use xfce on my Debian GNU/Linux testing system. I tend to keep xfce >> packages current. The option for handling brightness keys in the xfce >> power manager is set. About 10 days ago, the brightness keys both still >> worked on my Schenker S403 (based on Clevo W840SU). Today, I noticed >> that the key for reducing display brightness no longer works. The key >> for increasing brightness still works. Under a different OS on the same >> device both keys still work. > > Can you check what packages were upgraded at that time and reassign > accordingly? > > Regards, >
According to /var/log/apt/history.log plenty of packages were updated. Two seem particularly notable, since they seem related to power management and are among the dependencies of xfce4-power-manager: libupower-glib3 libdbus-glib-1-2 Philipp