  We examine the possibility of detecting signals of split supersymmetry in the
loop-induced decay h --> gamma gamma of the Higgs boson at the Large Hadron
Collider, where charginos, as surviving light fermions of the supersymmetric
spectrum, can contribute in the loop. We perform a detailed study of
uncertainties in various parameters involved in the analysis, and thus the net
uncertainty in the standard model prediction of the rate. After a thorough scan
of the parameter space, taking all constraints into account, we conclude that
it will be very difficult to infer about split supersymmetry from Higgs signals
alone.
