[Linux][Antergos] Crash when using dedicated GPU

[pointhi]

System

* GNU/Linux - Antergos (Arch based Distribution)
* GeForce GT 650M
* Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz (NVIDIA® Optimus™, intel graphic card is default)


Crashlog

http://pastebin.com/37vgBpnM


Important informations

* Magicka 2 is only crashing when using the Nvidia Card (using optirun or primusrun doesn't matter). Running Magicka 2 on the Intel Card cause no problems (beside of lags).
* I'm using the propertary Nvidia driver
* Magicka 2 worked on the system fine just a few days ago (but I needed some troubleshooting to get it working that last time, and now that troubleshooting doesn't worked) but I have to note running Magicka 2 on my laptop wasn't reliable all the time. Sometimes it started, sometimes not

Please ask if there are missing informations.

 

[RickardW]

That looks like a driver issue. Magicka 2 uses GLSL 1.2 shaders and the support seems a bit finicky. Unfortunately we have no easy way of upgrading it. I believe that if you disable SSAO and Depth of Field you should be able to bypass these shaders and hopefully it will not crash. Open ~/.bitsquid/Magicka2/user_config.config and change the with "ssao_enabled" and "dof_enabled" so they're set to false.

 

[pointhi]

Hy,

disabling ssao_enabled and dof_enabled doesn't worked for me.

Here is the console output of steam when starting Magicka 2 with the external graphic card:

http://pastebin.com/bpN6GsYS

When It helps, I can try to use an OpenGL debugger to get more informations about this bug.

 

[RickardW]

If that doesn't work I only know of using a driver that does not have this issue. I know that this happened on some cards for some version of Nvidia drivers. There is some sort of issue that prevents some drivers from compiling shaders with arrays that were decomposed from GLSL-generator but I never found out why.

 

[Cerbereus]

Hello I'm having the same problem, the game works pretty neat before, using the nvidia drivers 361.28.1 I have archlinux, I try all the suggestion you said and the game just keep crashing, black screen and then back to the desktop.

 

[RickardW]

Unfortunately I think the issue can only be solved by using the Mesa drivers right now.

 

[portaloffreedom]

Open ~/.bitsquid/Magicka2/user_config.config and change the with "ssao_enabled" and "dof_enabled" so they're set to false.

Hi, I have the same issue and I find myself in a difficult situation. The configuration file doesn't exist at all for me because I was never able to start the game successfully (I don't have optimus). Can someone give me an example configuration file?