Happens to me with the i3 WM, on a 7870 Ghz edition.
@tulius can't change LWJGL version since the new launcher, it overwrites it...
No, it is fixed in a sepcific version of LWJGL, mojang just needs to add it to the launcher.
Well, most adventure maps give blocks to the player. With this glitch the player can easily cheat and go over walls.
Please update the affected versions. Also, lwjgl blocks the use of some keys using an alternate keyboard layout.
Still affects 1.7.10 & 14w26c, but the glitch is now rarely triggered by the player. Updated steps to reproduce.
Please reopen for adventure mode. Server should detect and correct invalid movements.
Please add some content. A video is needed since it didn't happen for me.
This is definetely not the result of a bad computer. In 15 chunks it loads instantly, and I have 300+ fps. But when I set it to more, restart the game and join the world, it doesn't load the chunks.