HP's G72 laptop has a high-definition 17.3" diagonal display, a stylish design and decent specifications. It also makes a decent budget desktop replacement
it could be that the screen isn't being as energy efficient as it used to causing a lower max brightness, look if you can find a small flat knob that a phillips head can fit into to adjust the voltage.
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Have you tried changing the brightness using something like Fn+F11/F12?
由 Alex Niculescu 完成的