Tabs are blank, filename not shown

[Marvin Wiesner]

In Monodevelop, (most of) the tabs are Blank, there is no filename shown. (See screenshot)
Sometimes it is shown.

Shown:
MainClass2.cs
Menu.cs

NotShown
Artikel.cs
ControllerArtikel.cd
MenuItem.cs
Programm.cs

It could be a problem with libcairo2: http://mono.1490590.n4.nabble.com/Editor-show-no-filename-on-tabs-td4661464.html

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: monodevelop 4.0.12+dfsg-2
ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6
Uname: Linux 3.13.0-36-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Oct 20 08:40:03 2014
InstallationDate: Installed on 2014-05-06 (166 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
PackageArchitecture: all
SourcePackage: monodevelop
UpgradeStatus: No upgrade log present (probably fresh install)