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-rw-r--r--doc/info/chap/invoking.texinfo16
1 files changed, 13 insertions, 3 deletions
diff --git a/doc/info/chap/invoking.texinfo b/doc/info/chap/invoking.texinfo
index f0a51ec..008c883 100644
--- a/doc/info/chap/invoking.texinfo
+++ b/doc/info/chap/invoking.texinfo
@@ -37,7 +37,17 @@ which is Gates of Tartaros on @file{/dev/tty15}
with the environment variable @env{TERM} set
to @command{linux}.
-Note that sleeping-getty works on VT:s, not TTY:s.
-It cannot wait for a serial console to become,
-active, only virtual terminals.
+Note that @command{sleeping-getty} works on
+VT:s, not TTY:s. It cannot wait for a serial
+console to become, active, only virtual terminals.
+
+Also note, @command{sleeping-getty} does not acquire
+the TTY. That would be a waste of CPU cycles. This
+means, if naïvely used, that if you start your
+computer, log in on @file{tty1}, and start @command{X},
+and have @command{startx} configured to start @command{X}
+on the next available VT. @command{X} will start on
+VT@tie{}2. This is probably not want you want. Instead
+you should edit startx to ensure that a VT lower than
+a preferred number (customarily 7) will not be used.