xset not having any effect in my .xsessionrc file

I need to set some trackpoint settings automatically. I don't know the best file in which to place these commands, but I used .xsessionrc. The commands are properly executed (I can verify that by adding set -x in the script, I see the xset command being executed). The xinput command have their intended effect, but the xset command has no effect.

Can anyone help me figure out how to run all these commands, including xset, automatically?

Here are my commands:

xinput set-prop "Synaptics Inc. Composite TouchPad / TrackPoint (Stick)" "Device Accel Profile" 7
xinput set-prop "Synaptics Inc. Composite TouchPad / TrackPoint (Stick)" "Device Accel Constant Deceleration" 1.45
xinput set-prop "Synaptics Inc. Composite TouchPad / TrackPoint (Stick)" "Device Accel Adaptive Deceleration" 40
xinput set-prop "Synaptics Inc. Composite TouchPad / TrackPoint (Stick)" "Device Accel Velocity Scaling" 40
xset m 40 80

I can run the exact same xset command after I log in and it works as intended.

I run KDE (Kubuntu 14.10). Its GUI configuration doesn't have a way to set the parameters I want to set.