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Butcher (GOG): Wrong Audio Device and Input Lag
iskaputt Dec 10, 2016
For some reason, Butcher uses /dev/snd/pcmC2D0 for audio instead of /dev/snd/pcmC0D0. My headphones are connected to the latter and every other program (of the ones I use) uses this for output.

Now Butcher is a Unity game, but doesn't have an option for audio device selection in game. Is there a general Unity option for the playerprefs file?

Second issue I have is input lag. Super annoying. I know that the game is locked at 60 fps, but not sure if via VSYNC or otherwise. Starting with `vblank_mode=0` doesn't help. Again, is there a general Unity option that I can put into the playerprefs file for this?
iskaputt Dec 12, 2016
Thanks, finally tried it this evening but I had trouble compiling it properly.

symbol lookup error: /home/c/source/libstrangle/libstrangle64.so: undefined symbol: glXSwapIntervalEXT

I put `-lGL` for gcc, but the thing is, `glXSwapIntervalEXT` is not defined in my `/usr/include/GL/glext.h`. According to some quick searching, I need the EXT_swap_control extension. Didn't look much further yet, will check this tomorrow.
iskaputt Dec 13, 2016
Ok, my fault, I actually looked in the wrong header file. `/usr/include/GL/glext.h` instead of `glxext.h`. It is there.

Now how to include this beast. Did you change anything in the makefile? I grepped /usr/include/ for `#include <GL/glxext.h>` and it was present in `cairo-gl.h`, so I did `pkg-config --libs cairo-gl` which yielded `-lcairo -lGL`.

My gcc looks like this:

gcc -rdynamic -fPIC -D_GNU_SOURCE -shared -Wall -std=c99 -Wl,-z,relro,-z,now -m64 -lcairo -lGL -o libstrangle64.so libstrangle.c

Still undefined :( There gotta be something I'm doing wrong.
iskaputt Dec 13, 2016
Sadly, neither did work. I think that I don't have a vendor specific glx library.

Did a bit more looking around, found that my machine loads the xorg `libglx.so`. From Xorg.0.log:

[ 14500.792] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so

So I looked at the included symbols

`nm -D /usr/lib/xorg/modules/extensions/libglx.so`

but there was no `glXSwapIntervalEXT`.

For the record, I'm using radeonsi. Did another quick 'libglx.so radeonsi' search but haven't found anything yet. Will look into it some more tomorrow, if I have the time.
wolfyrion Dec 14, 2016
About any audio issues I have I just use Pavucontrol..

This amazing tool it gives you the option for every single audio stream to make it stream to your preferred device and it keeps your preferred option forever unless you change it again.
You have to use Pulseaudio for that.


Most of the unity games save their configuration preferences on this path for example
/home/<your username>/.config/unity3d/<company name>/<game name>

I dont own the game yet so I cant help you much...
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