I have an external monitor connected to my MacBook Pro, the two screens have different DPIs. Ideally I would like them to be the same, but as this is not the case, the best option I can see is reducing the resolution of the MBP screen to bring its DPI as close as possible to the external monitor. This introduces scaling artefacts on the screen, as LCDs don't look good at non-native resolutions.
Is there a standard or best way of handling this, and if not, what other options are available?