Comment 24 for bug 277709

I followed your instructions above:

"I forgot to mention, you will need to install libgl1-mesa-dri-dbg, xserver-xorg-core-dbg, xserver-xorg-dbgsym and libc6-dbg. To get all of these, you should add the following line to your /etc/apt/sources.list:
deb http://ddebs.ubuntu.com hardy main universe
Then run:
sudo apt-get update
 sudo apt-get install libgl1-mesa-dri-dbg xserver-xorg-core-dbg xserver-xorg-dbgsym libc6-dbg"

The only thing I did different was changing hardy to intrepid. May that be the cause?

Or may it be that I have to remove the packages without -dbg at the end?

--- cut here ---
Salze@lllu0143:~$ apt-cache policy libgl1-mesa-dri-dbg
libgl1-mesa-dri-dbg:
  Installiert: 7.2-1ubuntu1
  Kandidat: 7.2-1ubuntu1
  Versions-Tabelle:
 *** 7.2-1ubuntu1 0
        500 http://de.archive.ubuntu.com intrepid/main Packages
        100 /var/lib/dpkg/status
Salze@lllu0143:~$ apt-cache policy libgl1-mesa-dri
libgl1-mesa-dri:
  Installiert: 7.2-1ubuntu1
  Kandidat: 7.2-1ubuntu1
  Versions-Tabelle:
 *** 7.2-1ubuntu1 0
        500 http://de.archive.ubuntu.com intrepid/main Packages
        100 /var/lib/dpkg/status
--- cut here ---