Open Carry:
According to Texas Penal Code sections 46.03 & 46.035, concealed handgun license holders (CHL) may now visibly carry their handguns visibly in a waist belt holster or a shoulder holster. However, when it comes to institutions of higher education, House Bill 910 clearly prohibits the open carry of a handgun.
Campus Carry:
Senate Bill 910 mandates the following:
A license holder may carry a concealed handgun on or about the license holder's person while the license holder is on the campus of an institution of higher education or private or independent institution of higher education in this state.
http://www.legis.state.tx.us/tlodocs/84R/billtext/pdf/HB00910F.pdf#navpanes=0