Linux Version FAQ

Q: How do I run Dungeon Defenders?
A: First extract the downloaded dundef-linux.tar.bz2 to your home folder. Then if on Ubuntu 12.10 you should be able to just double click on the executable in this folder: DungeonDefenders\UDKGame\Binaries

If on another Linux distribution like Ubuntu 12.04 that isn't setup for launching executable(s) straight from the desktop:

1. Launch Terminal
2. Navigate to the DungeonDefenders\UDKGame\Binaries folder
3. Type in "chmod +x DungeonDefenders-x86" (Ubuntu users: sudo chmod +x DungeonDefenders-x86)
4. Type in ./DungeonDefenders-x86" (Ubuntu users: sudo ./DungeonDefenders-x86)

Q: I get a segmentation fault when trying to get the game to launch.
A: Running as root/sudo may resolve this issue

Q: What are the system requirements to play the game on Linux?
A: Processor: 1.3 GHz, Memory: 2 GB, Graphics: 256 MB VRAM with Shader Model 3 support, Libraries: libc-2.12.2 or later and libstdc++.6.0.13 or later

Q: Dungeon Defenders for Linux is crashing in full screen mode.
A: There is a known issue where Dungeon Defenders on Linux will crash when you switch to full-screen mode. It's recommended that you play with post processing effects off.

Q: Where can I find more information about bugs/troubleshooting?
A: https://bugzilla.icculus.org/buglist.cgi?quicksearch=Dungeon+Defenders

Q: XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
A: For a workaround, just use this command (source):
# ln -s /bin/true /usr/bin/gnome-screensaver-command

Q: I can't hear any sound effects, only music.
A: The sounds are there but are currently really silent so you may need to max the SFX volume in the options (far right) before you hear the sounds. 

Edited March 4, 2019 by Ice

If the splash screen flickers then the game segfaults, before resorting to desperate measures like sudo, try:

MESA_GLSL=dump ./DungeonDefenders

If it reports something like extension `GL_EXT_bindable_uniform' unsupported in fragment shader, you're seeing https://bugzilla.icculus.org/show_bug.cgi?id=5823 . Try using other graphics hardware.

IceArrow,

Can you tell when the linux version will be available on Steam? I can't connect to online games through gamespy so steam support would be great.

The game is now playable with Optimus Nvidia chipsets through BumbleBee/Primus, link to the pull request for the impatient:
https://github.com/amonakov/primus/pull/41

IceArrow,

Can you tell when the linux version will be available on Steam? I can't connect to online games through gamespy so steam support would be great.

We're gonna talk to Valve about it so no guarantee/details/etc about it happening or not, right now.

ctrl+g will unbind the mouse, so you can drag it outside of the game (it's a toggle).

Under unity, you can user super+tab to tab out - alt+tab does not seem to work yet.

Would love a Steam version, having to run the game manually and not from a launcher is a bit archaic to be honest.

Multiplayer

Hi, i made gamespy accound and tryed to play MP, but there is always error (encountered an uknown error...). Is it possible to play online now?

PS:
Thx for Linux version, wonderfull game, i would love to have it on Steam.

Oh, i found that, so bug it is...
https://bugzilla.icculus.org/show_bug.cgi?id=5827

yeah, the online game (gamepspy) doesnt work. also LAN play localy or via hamachi doesnt seem to work at all.
hope to see this game on steam as soon as possible. cuz its not really fun to play it alone

anyway Big Thanks for bringing it to Linux!

If the splash screen flickers then the game segfaults, before resorting to desperate measures like sudo, try:

MESA_GLSL=dump ./DungeonDefenders

If it reports something like extension `GL_EXT_bindable_uniform' unsupported in fragment shader, you're seeing https://bugzilla.icculus.org/show_bug.cgi?id=5823 . Try using other graphics hardware.

The sed procedure documented in that bug worked pretty well for me to get around that segfault error (I'm on Ubuntu 12.10 running on a 2012 Macbook Air 5,2 w/Intel HD4000 graphics). I can start the game and play local levels after a little bit of stuttering on the startup and loading screens. The graphics look great, frame rate is pretty reasonable at 800x600 pixels, 1440x900 was a bit slow.

So if you're running into that GL_EXT error, give that a whirl before you go buy a new computer to run DD.

Xbox 360 Controller doesnt seem to work at the moment.

Bug here: https://bugzilla.icculus.org/show_bug.cgi?id=5837

Yes i can confirm 360 Controller and full screen issue too and I find this as a very big problem. When will be a new version avaible for linux ? So many bugs has been reported from here and from bugzilla but there is annocuments for anything.

I have the problem that mana does not flow toward my character like it does on the steam version. It just sits there. For example, when I open a chest, I have to wait for the chest to dissappear before I can pick up the mana, because it sits inside the chest model. It also makes it much more difficult to pick up mana during the action.

Does any gamepad work currently? I tried two PS2 controllers with adapter, Gametech USB controller and a ThrustMaster USB controller and none of those seemed to work.

I have the problem that mana does not flow toward my character like it does on the steam version. It just sits there. For example, when I open a chest, I have to wait for the chest to dissappear before I can pick up the mana, because it sits inside the chest model. It also makes it much more difficult to pick up mana during the action.

I also got this problem, I can't even pick up the mana from the crates after they've disappeared but maybe it's a bug in the offline mode, couldn't test it online since that doesn't work either.

I ask again when will the new version coming for linux ?

Keep in mind guys that the Linux version is NOT maintained by Trendy.

If you found a bug that is NOT listed HERE then please submit it there to get it fixed.

Online Play Not Working

Shouldn't the FAQ mention that online play does not work at all on Linux yet?

Next Build

It has been three weak since game is out for linux but there is not any new build for now and no one gives an accurute information when it will be? If we thought shank 2 has been updated for 5 times I am losing hope for this game.

I am also very disappointed, the linux client of the game is basically not playable at this stage.

Yes definitaly it is not playlable and it is also distrobing that there is not any offical person replying to us.

Yes there is, you're just not reading it. http://icculus.org/mailman/listinfo/dungeondefenders

Yes but there is only a awsome guy name Icculus. I hope he is getting the money coming from humble.

IceArrow,

Can you tell when the linux version will be available on Steam? I can't connect to online games through gamespy so steam support would be great.

I'm also waiting for the steam availability. Any news?

At this stage there is no guarantee it will ever come to Linux Steam. I asked on twitter when it first came out and the exact response was "We're not sure yet. It's definitely something that might happen in the future." That came from Philip Asher. So we shall see. It sounds like it's up in the air at the moment.

Sigh...

It looks like Icculus's site is down and now it's like Trendy forgot that we even exist. I'm not fighting the Humble Bundle but if anyone were to have purchased it specifically for Linux they would be seriously disappointed at this point. I've tried all of the workarounds with nothing helping. No matter what it runs horribly and crashes constantly. Not only that but controllers don't work and half the time the game doesn't work the way it's supposed to. You can't take bug reports and then simply ignore what's going on.