I am using Chrome Version 38.0.2125.111 (64-bit) on Ubuntu 14.04. The problem is that the auto-complete doesn't work when writing in the search line, and I have no idea what the problem is.
Thank you for helping!
This might be due to disabling of auto fill in browser. so please check the following,
settings---->select Show Advanced Settings----->Under Passwords and forms---->Click Check the box Enable Autofill to fill out web forms in a single click.
Hope this helps!!!!