fwiw I bombarded usensord with direct dbus requests simultaneously and could not reproduce the issue
#!/bin/bash i=$1 while [ $i -gt 0 ]; do dbus-send --session --print-reply --type=method_call --dest='com.canonical.usensord' /com/canonical/usensord/haptic com.canonical.usensord.haptic.Vibrate uint32:500 ((i--)) sleep $2 done
fwiw I bombarded usensord with direct dbus requests simultaneously and could not reproduce the issue
#!/bin/bash 'com.canonical. usensord' /com/canonical/ usensord/ haptic com.canonical. usensord. haptic. Vibrate uint32:500
i=$1
while [ $i -gt 0 ]; do
dbus-send --session --print-reply --type=method_call --dest=
((i--))
sleep $2
done