I am able to enter my passphrase (asterisks appear, boot continues on "enter") on 3.19.0-29-generic #31~lp1500751Commit4b630e4e on my Dell Latitude E7250.
I am able to enter my passphrase (asterisks appear, boot continues on "enter") on 3.19.0-29-generic #31~lp1500751Co mmit4b630e4e on my Dell Latitude E7250.