The version of Ogre differs from the one in Debian.
The value for "Pluginfolder" in
/usr/share/games/freeorion/ogre_plugins.cfg
is generated at build-time and points on amd64 to /usr/lib/x86_64-linux-gnu/OGRE-1.8.0.
Since the version of Ogre is different, the plugins can't most likely be found. Although I noticed that an Ubuntu patch tries to compensate this by symlinking the OGRE-1.8.1 plugin folder to OGRE-1.8.0.
What happens if you change the value of Pluginfolder to /usr/lib/x86_64-linux-gnu/OGRE-1.8.1 ?
I believe this bug is caused by changes made to Ubuntu's version of Ogre. See also
https:/ /bugs.launchpad .net/ubuntu/ +source/ ogre-1. 8/+bug/ 1244592
The version of Ogre differs from the one in Debian.
The value for "Pluginfolder" in
/usr/share/ games/freeorion /ogre_plugins. cfg
is generated at build-time and points on amd64 to /usr/lib/ x86_64- linux-gnu/ OGRE-1. 8.0.
Since the version of Ogre is different, the plugins can't most likely be found. Although I noticed that an Ubuntu patch tries to compensate this by symlinking the OGRE-1.8.1 plugin folder to OGRE-1.8.0.
What happens if you change the value of Pluginfolder to /usr/lib/ x86_64- linux-gnu/ OGRE-1. 8.1 ?
Maybe a rebuild will resolve the issue?