Improve X startup error messages
    
    - Add separate timeout message with workarounds
    - Print the messages instead of logging them
    - Move tty switching to where messages are printed
    
    Related: rhbz#1918702
    Related: rhbz#1955306
    
    (cherry picked from commit 9b8d428ee11d07de1126097a8d0f8e152e9ce7a8)