  Aiming to search for a signal of space-time noncommutativity, we study a
quasinormal mode spectrum of the Reissner Nordstr\"om black hole in the
presence of a deformed space-time structure. In this context we study a
noncommutative (NC) deformation of a scalar field, minimally coupled to a
classical Reissner Nordstr\"om background. Our model is thus semiclassical from
the beginning and scalar field is in addition minimally coupled to U(1) gauge
field. The deformation is performed via particularly chosen Killing twist to
yield a geometrical form of the action, which maintains the diffeomorphism
invariance manifest, as well as the invariance under a deformed gauge symmetry
group. We find the quasinormal mode solutions of the equations of motion
governing the matter content of the model in some particular range of system
parameters which corresponds to a near extremal limit. In addition, we obtain a
well defined analytical condition which allows for a detailed numerical
analysis. Moreover, there exists a parameter range, rather restrictive though,
which allows for obtaining a QNM spectrum in a closed analytic form. We also
argue within a semiclassical approach that NC deformation does not affect the
Hawking temperature of thermal radiation.
