I've started playing games on my laptop and have noticed that my performance is far from desired. I went into "About This Computer" and clicked on the Graphics tab. It says that the driver is unknown and the experience is standard. In terminal I was able to find out the following info:

00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) (prog-if 00 [VGA controller])
Subsystem: Dell Device 02aa
Flags: bus master, fast devsel, latency 0, IRQ 46
Memory at f6c00000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at efe8 [size=8]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
I noticed that it says "Access Denied." Is there anything that I can do to fix this and if so, should I be seeing a major boost in performance? Thanks, forum contributors!