On Wed, 2019-01-02 at 10:32 -0500, Ted To wrote: > My experience was that a reboot allowed qcontrol to be installed but it > certainly makes sense that reloading devices could fix the install as > well. I'm willing to help test this -- would I install the stretch > qcontrol (not backported), reboot and then try to install the backported > qcontrol?
I think so, yes. After installing the stretch qcontrol and rebooting you should run: udevadm info -q all /dev/input/by-path/platform-gpio_keys-event And confirm that it does _not_ have a line like: E: TAGS=:power-switch:systemd: specifically either there should be no TAGS line or if there is one it should not have "systemd" in it. I think that correctly replicates the state before the failing update. I guess you've have seen it while I was writing this mail, but note my follow up where I decided that the correct command was: udevadm trigger -s platform -y gpio_keys && dpkg --configure -a Thanks! Ian.