Game looks dark in someone else's computer (deferred rendering + linear color space)

Hello all,

I'm having a weird problem. I compiled a test build of our current project, and in our computers everything looks just fine (just like in the editor). However, I sent the demo to someone else and he said it looks too dark. The same happens to him when playing in full screen or windowed mode.

After some testing I thought maybe the problem was something related to his gamma configuration, but I'm not sure what that could be. The game is using linear color space (if I simply switch it to gamma color space without rebaking, I get the same dark look he describes), but I am not sure if there's anything on his side that would affect the game's color space, or something similar.

Any ideas?
Thanks.

 

Maybe it was something about the Unity version, because after updating to the latest version it worked just fine.
Not sure about his computer specs. He hasn't told me yet.