1 is not normal and it shows that something on your Mac is corrupted. the system should always reconnect to the WiFi signal it was connected to whenn coming out of sleep or from the screen going dark.
2 could be the magnetic switch that controls puttiing the system to sleep and waking it up when the lid is closed and then opened isn't functioning correctly. You Mac still thinks the lid is closed and reclosing it then opening it a seocnd time jars the switch into working correctly.
1 and 2.....
MacBook Pro: Distorted video or no video issues . The affected computers were manufactured between approximately May 2007 and September 2008.
MacBook Pro (15-inch, Mid 2010): Intermittent black screen or loss of video. Affected computers were manufactured between April 2010 and February 2011.