diff --git a/AUTHORS b/AUTHORS
index 67111393ce0..d43c4aa74ff 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -9,6 +9,7 @@ Alexei Kozlenok
 Anatoly Bubenkoff
 Andreas Zeidler
 Andy Freeland
+Andrzej Ostrowski
 Anthon van der Neut
 Antony Lee
 Armin Rigo
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 6bed6ed4274..cfd77cb0c97 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -160,6 +160,10 @@ time or change existing behaviors in order to make them less surprising/more use
   parametrize.
   Thanks `@palaviv`_ for the complete PR (`#1474`_).
 
+* Now pytest warnings summary is shown up by default. Added a new flag
+  ``--disable-pytest-warnings`` to explicitly disable the warnings summary.
+  This change resolves the (`#1668`_).
+
 * Make ImportError during collection more explicit by reminding
   the user to check the name of the test module/package(s) (`#1426`_).
   Thanks `@omarkohl`_ for the complete PR (`#1520`_).
@@ -216,6 +220,8 @@ time or change existing behaviors in order to make them less surprising/more use
 * Fix internal error issue when the ``method`` argument is missing for
   ``teardown_method()`` (`#1605`_).
 
+* Renamed the pytest ``pdb`` module (plugin) into ``debugging``.
+
 * Fix exception visualization in case the current working directory (CWD) gets
   deleted during testing (`#1235`_). Thanks `@bukzor`_ for reporting. PR by
   `@marscher`_.
@@ -268,6 +274,7 @@ time or change existing behaviors in order to make them less surprising/more use
 .. _#1618: https://github.com/pytest-dev/pytest/issues/1618
 .. _#1619: https://github.com/pytest-dev/pytest/issues/1619
 .. _#1626: https://github.com/pytest-dev/pytest/pull/1626
+.. _#1668: https://github.com/pytest-dev/pytest/issues/1668
 .. _#1627: https://github.com/pytest-dev/pytest/pull/1627
 .. _#1628: https://github.com/pytest-dev/pytest/pull/1628
 .. _#1629: https://github.com/pytest-dev/pytest/issues/1629
diff --git a/_pytest/terminal.py b/_pytest/terminal.py
index b88a19e139e..7db0fda7473 100644
--- a/_pytest/terminal.py
+++ b/_pytest/terminal.py
@@ -20,10 +20,15 @@ def pytest_addoption(parser):
     group._addoption('-q', '--quiet', action="count",
                dest="quiet", default=0, help="decrease verbosity."),
     group._addoption('-r',
-         action="store", dest="reportchars", default=None, metavar="chars",
+         action="store", dest="reportchars", default='', metavar="chars",
          help="show extra test summary info as specified by chars (f)ailed, "
-              "(E)error, (s)skipped, (x)failed, (X)passed (w)pytest-warnings "
-              "(p)passed, (P)passed with output, (a)all except pP.")
+              "(E)error, (s)skipped, (x)failed, (X)passed, "
+              "(p)passed, (P)passed with output, (a)all except pP. "
+              "The pytest warnings are displayed at all times except when "
+              "--disable-pytest-warnings is set")
+    group._addoption('--disable-pytest-warnings', default=False,
+                     dest='disablepytestwarnings', action='store_true',
+                     help='disable warnings summary, overrides -r w flag')
     group._addoption('-l', '--showlocals',
          action="store_true", dest="showlocals", default=False,
          help="show locals in tracebacks (disabled by default).")
@@ -52,6 +57,10 @@ def mywriter(tags, args):
 def getreportopt(config):
     reportopts = ""
     reportchars = config.option.reportchars
+    if not config.option.disablepytestwarnings and 'w' not in reportchars:
+        reportchars += 'w'
+    elif config.option.disablepytestwarnings and 'w' in reportchars:
+        reportchars = reportchars.replace('w', '')
     if reportchars:
         for char in reportchars:
             if char not in reportopts and char != 'a':
diff --git a/testing/test_config.py b/testing/test_config.py
index bb686c3b058..288b6670327 100644
--- a/testing/test_config.py
+++ b/testing/test_config.py
@@ -539,11 +539,11 @@ def fix(request):
             def test_hello(fix):
                 pass
         """)
-        result = testdir.runpytest()
+        result = testdir.runpytest("--disable-pytest-warnings")
         assert result.parseoutcomes()["pytest-warnings"] > 0
         assert "hello" not in result.stdout.str()
 
-        result = testdir.runpytest("-rw")
+        result = testdir.runpytest()
         result.stdout.fnmatch_lines("""
             ===*pytest-warning summary*===
             *WT1*test_warn_on_test_item*:5*hello*
diff --git a/testing/test_terminal.py b/testing/test_terminal.py
index 5d055e416aa..51e62f3a0fb 100644
--- a/testing/test_terminal.py
+++ b/testing/test_terminal.py
@@ -590,13 +590,23 @@ def test_getreportopt():
     class config:
         class option:
             reportchars = ""
+            disablepytestwarnings = True
 
     config.option.reportchars = "sf"
     assert getreportopt(config) == "sf"
 
-    config.option.reportchars = "sfx"
+    config.option.reportchars = "sfxw"
     assert getreportopt(config) == "sfx"
 
+    config.option.reportchars = "sfx"
+    config.option.disablepytestwarnings = False
+    assert getreportopt(config) == "sfxw"
+
+    config.option.reportchars = "sfxw"
+    config.option.disablepytestwarnings = False
+    assert getreportopt(config) == "sfxw"
+
+
 def test_terminalreporter_reportopt_addopts(testdir):
     testdir.makeini("[pytest]\naddopts=-rs")
     testdir.makepyfile("""