Author: ray
Date: Wed Dec 18 00:14:58 2013
New Revision: 259532
URL: http://svnweb.freebsd.org/changeset/base/259532

Log:
  Skip processing of R.Alt as a second Alt key, if sysctl kern.vt.enable_altgr 
is
  not zero.
  
  Submitted by: andreast
  Sponsored by: The FreeBSD Foundation

Modified:
  head/sys/dev/vt/vt_core.c

Modified: head/sys/dev/vt/vt_core.c
==============================================================================
--- head/sys/dev/vt/vt_core.c   Wed Dec 18 00:10:30 2013        (r259531)
+++ head/sys/dev/vt/vt_core.c   Wed Dec 18 00:14:58 2013        (r259532)
@@ -113,6 +113,7 @@ const struct terminal_class vt_termclass
 int sc_txtmouse_no_retrace_wait;
 
 static SYSCTL_NODE(_kern, OID_AUTO, vt, CTLFLAG_RD, 0, "Newcons parameters");
+VT_SYSCTL_INT(enable_altgr, 0, "Enable AltGr key (Do not assume R.Alt as 
Alt)");
 VT_SYSCTL_INT(debug, 0, "Newcons debug level");
 VT_SYSCTL_INT(deadtimer, 15, "Time to wait busy process in VT_PROCESS mode");
 VT_SYSCTL_INT(suspendswitch, 1, "Switch to VT0 before suspend");
@@ -404,6 +405,8 @@ vt_processkey(keyboard_t *kbd, struct vt
        if (c & RELKEY) {
                switch (c & ~RELKEY) {
                case (SPCLKEY | RALT):
+                       if (vt_enable_altgr != 0)
+                               break;
                case (SPCLKEY | LALT):
                        vd->vd_kbstate &= ~ALKED;
                }
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