Here is a truss trace of what vtdaemon does when ALT-L + F2 is pressed. each time a key is pressed a new Door Return event happens but VTdaemon does not "do" anything.
505: psargs: /usr/lib/vtdaemon -k -c 16 505/3: door_return(0x00000000, 0, 0x00000000, 0xFECAFE00, 1007360) (sle eping...) 505/1: pollsys(0x08047D90, 1, 0x00000000, 0x00000000) (sleeping...) 505/1: fd=4 ev=POLLIN|POLLPRI|POLLRDNORM|POLLRDBAND rev=0 505/4: door_return(0x00000000, 0, 0x00000000, 0xFEBB0E00, 1007360) (sle eping...) 505/2: door_unref() (sleeping...) 505/3: door_return(0x00000000, 0, 0x00000000, 0xFECAFE00, 1007360) = 0 505/3: door_ucred(0x08064BF0) = 0 505/3: euid=0 egid=0 505/3: ruid=0 rgid=0 505/3: pid=0 zoneid=0 505/3: E: all 505/3: I: basic 505/3: P: all 505/3: L: all 505/3: door_return(0x00000000, 0, 0x00000000, 0xFECAFE00, 1007360) = 0 505/3: door_ucred(0x08064BF0) = 0 505/3: euid=0 egid=0 505/3: ruid=0 rgid=0 505/3: pid=0 zoneid=0 505/3: E: all 505/3: I: basic 505/3: P: all 505/3: L: all 505/3: door_return(0x00000000, 0, 0x00000000, 0xFECAFE00, 1007360) = 0 505/3: door_ucred(0x08064BF0) = 0 505/3: euid=0 egid=0 505/3: ruid=0 rgid=0 505/3: pid=0 zoneid=0 505/3: E: all 505/3: I: basic 505/3: P: all 505/3: L: all -- This message posted from opensolaris.org