diff --git a/hplip-stuck-plugin.patch b/hplip-stuck-plugin.patch
new file mode 100644
index 0000000..eadc049
--- /dev/null
+++ b/hplip-stuck-plugin.patch
@@ -0,0 +1,144 @@
+From f46ac074d066884480098c14397f5f3e34475e11 Mon Sep 17 00:00:00 2001
+From: Jiri Popelka <jpopelka@redhat.com>
+Date: Fri, 22 Jan 2016 16:30:13 +0100
+Subject: [PATCH] fix from launchpad #1510950
+
+---
+ base/password.py | 17 ++++++++++++++++-
+ base/utils.py    | 53 ++++++++++++++++++++++++++++++++++-------------------
+ 2 files changed, 50 insertions(+), 20 deletions(-)
+
+diff --git a/base/password.py b/base/password.py
+index 3ca16ae..6caefdf 100644
+--- a/base/password.py
++++ b/base/password.py
+@@ -104,6 +104,7 @@ def get_distro_name():
+ class Password(object):
+     def __init__(self, Mode = INTERACTIVE_MODE):
+         self.__password =""
++        self.__password_prompt_str=""
+         self.__passwordValidated = False
+         self.__mode = Mode
+         self.__readAuthType()  #self.__authType   
+@@ -201,7 +202,17 @@ class Password(object):
+                     
+                     cb = child.before
+                     if cb:
+-
++                        if('true' in cmd and self.__password_prompt_str == ""): #sudo true or su -c "true"
++                            cb = cb.replace("[", "\[")
++                            cb = cb.replace("]", "\]")
++                            self.__password_prompt_str = cb
++                            try:
++                                p = re.compile(cb, re.I)
++                            except TypeError:
++                                self.__expectList.append(cb)
++                            else:
++                                self.__expectList.append(p)
++                            
+                         start = time.time()
+                         output.write(cb)
+ 
+@@ -355,3 +366,7 @@ class Password(object):
+         self.__validatePassword( pswd_msg)
+         return self.__password
+ 
++    def getPasswordPromptString(self):
++        return self.__password_prompt_str
++
++
+diff --git a/base/utils.py b/base/utils.py
+index f1ec1e1..5d108f0 100644
+--- a/base/utils.py
++++ b/base/utils.py
+@@ -108,22 +108,21 @@ MAJ_VER = sys.version_info[0]
+ MIN_VER = sys.version_info[1]
+ 
+ 
+-
+ EXPECT_WORD_LIST = [
+     pexpect.EOF, # 0
+     pexpect.TIMEOUT, # 1
+-    "Continue?", # 2 (for zypper)
+-    "passwor[dt]:", # en/de/it/ru
+-    "kennwort", # de?
+-    "password for", # en
+-    "mot de passe", # fr
+-    "contraseña", # es
+-    "palavra passe", # pt
+-    "口令", # zh
+-    "wachtwoord", # nl
+-    "heslo", # czech
+-    "密码",
+-    "Lösenord", #sv
++    u"Continue?", # 2 (for zypper)
++    u"passwor[dt]:", # en/de/it/ru
++    u"kennwort", # de?
++    u"password for", # en
++    u"mot de passe", # fr
++    u"contraseña", # es
++    u"palavra passe", # pt
++    u"口令", # zh
++    u"wachtwoord", # nl
++    u"heslo", # czech
++    u"密码",
++    u"Lösenord", #sv
+ ]
+ 
+ 
+@@ -1260,6 +1259,15 @@ def run(cmd, passwordObj = None, pswd_msg='', log_output=True, spinner=True, tim
+     import io
+     output = io.StringIO()
+ 
++    pwd_prompt_str = ""
++    if passwordObj and ('su' in cmd or 'sudo' in cmd):
++        pwd_prompt_str = passwordObj.getPasswordPromptString()
++        log.debug("cmd = %s pwd_prompt_str = [%s]"%(cmd, pwd_prompt_str))
++        if(pwd_prompt_str == ""):
++            passwordObj.getPassword(pswd_msg, 0)
++            pwd_prompt_str = passwordObj.getPasswordPromptString()
++            log.debug("pwd_prompt_str2 = [%s]"%(pwd_prompt_str))
++
+     try:
+         child = pexpect.spawnu(cmd, timeout=timeout)
+     except pexpect.ExceptionPexpect as e:
+@@ -1277,15 +1285,22 @@ def run(cmd, passwordObj = None, pswd_msg='', log_output=True, spinner=True, tim
+                 continue
+ 
+             if child.before:
++                if(pwd_prompt_str and pwd_prompt_str not in EXPECT_LIST):
++                    log.debug("Adding %s to EXPECT LIST"%pwd_prompt_str)
++                    try:
++                        p = re.compile(pwd_prompt_str, re.I)
++                    except TypeError:
++                        EXPECT_LIST.append(pwd_prompt_str)
++                    else:
++                        EXPECT_LIST.append(p)
++                        EXPECT_LIST.append(pwd_prompt_str)
++
+                 try:
+                     output.write(child.before)
++                    if log_output:
++                        log.debug(child.before)
+                 except Exception:
+                     pass
+-                if log_output:
+-                    try:
+-                        log.debug(child.before)
+-                    except Exception:
+-                        pass
+ 
+             if i == 0: # EOF
+                 break
+@@ -2018,7 +2033,7 @@ def download_from_network(weburl, outputFile = None, useURLLIB=False):
+ 
+         if useURLLIB:
+ 		
+-            sys.stdout.write("Download in progress..........")
++            #sys.stdout.write("Download in progress..........")
+             try:
+                 response = urllib2_request.urlopen(weburl)    
+                 file_fd = open(outputFile, 'wb')
+-- 
+2.5.0
+
diff --git a/hplip.spec b/hplip.spec
index 37f1be7..daf9aa5 100644
--- a/hplip.spec
+++ b/hplip.spec
@@ -7,7 +7,7 @@
 Summary: HP Linux Imaging and Printing Project
 Name: hplip
 Version: 3.15.11
-Release: 4%{?dist}
+Release: 5%{?dist}
 License: GPLv2+ and MIT and BSD
 
 Url: http://hplip.sourceforge.net/
@@ -36,6 +36,7 @@ Patch20: hplip-dj990c-margin.patch
 Patch21: hplip-strncpy.patch
 Patch22: hplip-no-write-bytecode.patch
 Patch23: hplip-silence-ioerror.patch
+Patch24: hplip-stuck-plugin.patch
 
 Requires: %{name}-libs%{?_isa} = %{version}-%{release}
 Requires: python3-pillow
@@ -207,6 +208,9 @@ done
 # Ignore IOError when logging output (bug #712537).
 %patch23 -p1 -b .silence-ioerror
 
+# hp-plugin hangs on 'su' (bug #1249414).
+%patch24 -p1 -b .stuck-plugin
+
 sed -i.duplex-constraints \
     -e 's,\(UIConstraints.* \*Duplex\),//\1,' \
     prnt/drv/hpcups.drv.in
@@ -457,6 +461,9 @@ rm -f %{buildroot}%{_sysconfdir}/xdg/autostart/hplip-systray.desktop
 %postun libs -p /sbin/ldconfig
 
 %changelog
+* Fri Jan 22 2016 Jiri Popelka <jpopelka@redhat.com> - 3.15.11-5
+- hp-plugin hangs on 'su' (bug #1249414).
+
 * Mon Jan 04 2016 Jiri Popelka <jpopelka@redhat.com> - 3.15.11-4
 - Don't try to write bytecode cache for hpps filter (bug #1241548).