From ee8545b06c2325e5dca7afd9ea8dbc35342a7768 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 24 Jun 2011 23:51:49 +0200
Subject: [PATCH] pam: fix up tty if it is actually a display

---
 src/pam-module.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/pam-module.c b/src/pam-module.c
index eba59f65f25..1658348e28e 100644
--- a/src/pam-module.c
+++ b/src/pam-module.c
@@ -382,6 +382,16 @@ _public_ PAM_EXTERN int pam_sm_open_session(
         remote_host = strempty(remote_host);
         seat = strempty(seat);
 
+        if (strchr(tty, ':')) {
+                /* A tty with a colon is usually an X11 display, place
+                 * there to show up in utmp. We rearrange things and
+                 * don't pretend that an X display was a tty */
+
+                if (isempty(display))
+                        display = tty;
+                tty = NULL;
+        }
+
         type = !isempty(display) ? "x11" :
                    !isempty(tty) ? "tty" : "other";