Query failed: connection to localhost:9312 failed (errno=111, msg=Connection refused). So...do you have to log out/log back in to change video cards in snowleopard? - macOS Discussions on AppleInsider Forums Toggle navigation All Forums Recent Posts Sign In So...do you have to log out/log back in to change video cards in snowleopard? whateer Posted: August 3, 2009 4:05PM in macOS edited January 2014 I haven't seen anyone on the interwebz address this. Can someone with snowleopard see what happens when you change to nvidia and over again? Sign In or Register to comment.