Apps and app drawer is visible only on the top left in small size on my android phone.

[Girish Iyer]

Apologies if I have entered the query in the wrong thread.
Can someone please explain the reason the apps and app drawer is showing only in the top left and that too in a small size? It's a OnePlus X and I didn't make any changes to the dpi. If somebody has experienced such a problem before and have got its solution, please share it with me. Thanks in advance!
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[Girish Iyer]

I had changed some settings for Nova Launcher in GLTools (resolution was set to 0.5 etc.). I guess that was what caused the problem as after disabling the changes, the screen returned back to normal!