When i go on a minecraft server i can't see anything?

When i go to any minecraft server all of the blocks are black but signs and players and the sky are not completely black. It is not brightness, or super secret settings! I even reinstalled minecraft and re downloaded the luancher from mojang! Nothing works!
i also added a sereenshot of what it all looks like. It also has this problam when i'm on singleplayer doing the latest version of minecrart snapshot of 1.8 please somone help! I can't figure this out, and i'm not a computer dummy, i've tryed reinstalling java so could somone give anything to try to do to make this work? Please! It would be a great help.

Probably causes:
1) Java version. Since you upgraded, not too likely, but maybe something is still wrong.
2) Video card drivers. You need a video card that can handle the game, and the proper updated drivers. Since you don;t mention what video you have, hard to guess if it is video card related or not…