Mutter and Intel GMA 4500MHD I am trying to use Mutter with my Intel GMA 4500MHD (on my Thinkpad T400) in Debian Wheezy. However, it says: > Not using GLX TFP and some effects get very slow. How can I fix that?

possibly one way is to upgrade to mutter 3.0

To do this, you first have to add debian experimental repositories. Open /etc/apt/sources.list as su and add


# Experimental (just when explicitly demanded)
deb experimental main contrib non-free
deb-src experimental main contrib non-free


The next step is very important. Open /etc/apt/apt.conf as su and make sure it contains this line


APT::Default-Release ""; # (your release could be "testing" for example)


If you miss this step, your system would probably change to debian experimental.

Now update your repository information


apt-get update


and install mutter from experimental


apt-get -t experimental install mutter


On my notebook the experimental mutter didn't cause any problems until now...

Maybe you would also like to read section 3.8 of this document before you make delicate changes on your system.