Display scaling is not applied runtime

I changed my scaling to a value and back to 1, I think notify-osd got
triggered at that time, and all subsequent notifications were scaled
incorrectly.

It looks like notify-osd doesn't update the scaling value runtime.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: notify-osd 0.9.35+14.04.20140213-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-23.45-generic 3.13.8
Uname: Linux 3.13.0-23-generic x86_64
NonfreeKernelModules: wl nvidia
ApportVersion: 2.14.1-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Apr 7 13:59:10 2014
MachineType: Dell Inc. Latitude E6420
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.13.0-23-generic root=UUID=e11751da-d20f-4832-9530-c41e15f1e05c ro rootflags=subvol=@ splash quiet vt.handoff=7
RelatedPackageVersions:
 xserver-xorg 1:7.7+1ubuntu8
 libgl1-mesa-glx 10.1.0-4ubuntu1
 libdrm2 2.4.52-1
 xserver-xorg-video-intel 2:2.99.910-0ubuntu1
 xserver-xorg-video-ati 1:7.3.0-1ubuntu3
SourcePackage: notify-osd
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/11/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A14
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA14:bd07/11/2012:svnDellInc.:pnLatitudeE6420:pvr01:rvnDellInc.:rn:rvr:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6420
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.