Why won't increasing the temperature increase the solubility of a gas in a liquid solvent? If I raise the temperature of a solution of a gas in a liquid solvent, why won't the solubility increase?

Increasing the pressure will increase the solubility, but increasing the pressure doesn't mean increasing the temperature?  What is wrong with this argument?
A gas has bigger entropy when it's free, than in a solution. By increasing the temperature the molecules have bigger energy and they tend to be in a state with more freedom. Therefore, the solubility would decrease.