Здравствуйте Mikhail Gusarov
  В сообщении от 9 марта 2008 Mikhail Gusarov написал(a):
 > В man xorg.conf рассказано. 
SERVERFLAGS SECTION
.......
 Option "DontVTSwitch"  "boolean"
    This disallows the use of the  Ctrl+Alt+Fn  sequence  (where  Fn
    refers  to one of the numbered function keys).  That sequence is
    normally used to switch to another "virtual terminal" on operat-
    ing  systems  that  have  this  feature.   When  this  option is
    enabled, that key sequence has no special meaning and is  passed
    to clients.  Default: off.
 Option "DontZap"  "boolean"
    This disallows the use of the Ctrl+Alt+Backspace sequence.  That
    sequence is normally used to terminate the  Xorg  server.   When
    this option is enabled, that key sequence has no special meaning
    and is passed to clients.  Default: off.
..........
 Option "VTSysReq"  "boolean"
   enables the SYSV-style VT switch sequence for  non-SYSV  systems
   which support VT switching.  This sequence is Alt-SysRq followed
   by a function key (Fn).  This prevents the Xorg server  trapping
   the  keys  used  for the default VT switch sequence, which means
   that clients can access them.  Default: off.


 > Но это костыль - всегда найдётся ещё 
 > пара-тройка способов переключиться на vt.
Не то, что-бы не верю, но не знаю не одного. :)

-- 
  А ещё говорят так  (fortune):
 
- Что делает системный администратор, проснувшись с похмелья? - 
Тестирует память...  

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С уважением Хихин Руслан