In recent years, the $T$-linear scattering rate found at low temperatures, defining the strange metal phase of cuprates, has been a subject of interest.
Since a wide range of materials have a scattering rate that obeys the equation $ \hbar / \tau \approx k_B T$, the idea of a universal Planckian limit on the scattering rate has been proposed. However, there is no consensus on proposed theories yet. In this work, we present our results for the $T$-linear scattering rate in the triangular lattice Hubbard model obtained using the dynamical cluster approximation. In the $T--p$ phase diagram, we find two regions of $T$-linear scattering rate that are driven by different ingredients : one emerges at low doping from the pseudogap to correlated Fermi liquid phase transition, whereas the other at larger doping is solely caused by large interaction strength. We show that Planckian dissipation and $\omega/T$ scaling pertain to different regimes, unlike what is seen in cuprates.