You should report this to the game developer.
How?
dungeondefenders.com appears to be the official web site for the game.
I'm also using Fedora 19 x86-64 and Dungeon Defender is working fine in fullscreen. You're probably missing a x86 librairie.
Hello @NTMan, are you still experiencing this issue on an up to date system?
Closing pending feedback.
Nothing extracted yet.
When I try change it pop's error windows with message "Assertion failure at MacResizeOpenGLViewFullScreen"
Demonstration: https://docs.google.com/file/d/0B0nwzlfiB4aQdWhaWlI0ZzBEVkk/edit?usp=sharing
System Info:
Processor Information:
Vendor: GenuineIntel
Speed: 3401 Mhz
8 logical processors
4 physical processors
HyperThreading: Supported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Unsupported
SSE41: Supported
SSE42: Supported
Network Information:
Network Speed:
Operating System Version:
"Fedora release 19 (Schrödinger’s Cat)" (64 bit)
Kernel Name: Linux
Kernel Version: 3.9.9-302.fc19.x86_64
X Server Vendor: Fedora Project
X Server Release: 11402000
X Window Manager: GNOME Shell
Steam Runtime Version: steam-runtime-release-i386_2013-06-28
Video Card:
Driver: Intel Open Source Technology Center Mesa DRI Intel(R) Haswell Desktop
Sound card:
Audio device: Intel Haswell HDMI
Memory:
RAM: 14994 Mb
Miscellaneous:
UI Language: English
LANG: en_US.UTF-8
Microphone: Not set
Total Hard Disk Space Available: 2816556 Mb
Largest Free Hard Disk Block: 707372 Mb
Installed software:
Recent Failure Reports: