diff --git a/.circleci/config.yml b/.circleci/config.yml
index 7f4de4ae05d..6b5c7379b6d 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -9,6 +9,6 @@ jobs:
       - run: /python3.6/bin/pip install -U pip setuptools
       - run: /python3.6/bin/pip install -U .[test]
       - run: mkdir -p test-reports/pytest
-      - run: make test PYTHON=/python3.6/bin/python TEST=--junitxml=test-reports/pytest/results.xml
+      - run: make test PYTHON=/python3.6/bin/python TEST="--junitxml=test-reports/pytest/results.xml -vv"
       - store_test_results:
           path: test-reports
diff --git a/.github/workflows/builddoc.yml b/.github/workflows/builddoc.yml
new file mode 100644
index 00000000000..809fb68e6d7
--- /dev/null
+++ b/.github/workflows/builddoc.yml
@@ -0,0 +1,21 @@
+name: Build document
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python
+      uses: actions/setup-python@v1
+      with:
+        python-version: 3.6
+    - name: Install dependencies
+      run:  |
+        sudo apt update
+        sudo apt install -y graphviz
+        pip install -U tox
+    - name: Run Tox
+      run:  tox -e docs
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 0c09c778bd8..fea1f17a2ac 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        tool: [docslint, flake8, mypy]
+        tool: [docslint, flake8, mypy, twine]
 
     steps:
     - uses: actions/checkout@v2
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index fa2c1154a0d..7acfef6d255 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,4 +18,4 @@ jobs:
     - name: Install dependencies
       run:  pip install -U tox
     - name: Run Tox
-      run:  tox -e py
+      run:  tox -e py -- -vv
diff --git a/.travis.yml b/.travis.yml
index 340022cd81b..d73be03ec50 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,8 +27,6 @@ jobs:
     - python: 'nightly'
       env:
         - TOXENV=du16
-    - python: '3.6'
-      env: TOXENV=docs
 
     - language: node_js
       node_js: '10.7'
@@ -41,7 +39,7 @@ install:
   - if [ $IS_PYTHON = false ]; then npm install; fi
 
 script:
-  - if [ $IS_PYTHON = true ]; then tox -- -v; fi
+  - if [ $IS_PYTHON = true ]; then tox -- -vv; fi
   - if [ $IS_PYTHON = false ]; then npm test; fi
 
 after_success:
diff --git a/CHANGES b/CHANGES
index 2fb8890ccb2..e69c9436972 100644
--- a/CHANGES
+++ b/CHANGES
@@ -53,7 +53,16 @@ Features added
 Bugs fixed
 ----------
 
-* #7811: sphinx.util.inspect causes circular import problem
+* #7844: autodoc: Failed to detect module when relative module name given
+* #7856: autodoc: AttributeError is raised when non-class object is given to
+  the autoclass directive
+* #7850: autodoc: KeyError is raised for invalid mark up when autodoc_typehints
+  is 'description'
+* #7812: autodoc: crashed if the target name matches to both an attribute and
+  module that are same name
+* #7812: autosummary: generates broken stub files if the target code contains
+  an attribute and module that are same name
+* #7806: viewcode: Failed to resolve viewcode references on 3rd party builders
 
 Testing
 --------
diff --git a/sphinx/ext/autodoc/__init__.py b/sphinx/ext/autodoc/__init__.py
index ab75aaf5a9e..85bea8c4336 100644
--- a/sphinx/ext/autodoc/__init__.py
+++ b/sphinx/ext/autodoc/__init__.py
@@ -32,7 +32,6 @@
 from sphinx.pycode import ModuleAnalyzer, PycodeError
 from sphinx.util import inspect
 from sphinx.util import logging
-from sphinx.util import split_full_qualified_name
 from sphinx.util.docstrings import extract_metadata, prepare_docstring
 from sphinx.util.inspect import getdoc, object_description, safe_getattr, stringify_signature
 from sphinx.util.typing import stringify as stringify_typehint
@@ -826,7 +825,12 @@ def generate(self, more_content: Any = None, real_modname: str = None,
         self.add_line('', sourcename)
 
         # format the object's signature, if any
-        sig = self.format_signature()
+        try:
+            sig = self.format_signature()
+        except Exception as exc:
+            logger.warning(__('error while formatting signature for %s: %s'),
+                           self.fullname, exc, type='autodoc')
+            return
 
         # generate the directive header and options, if applicable
         self.add_directive_header(sig)
@@ -975,14 +979,8 @@ def resolve_name(self, modname: str, parents: Any, path: str, base: Any
                      ) -> Tuple[str, List[str]]:
         if modname is None:
             if path:
-                stripped = path.rstrip('.')
-                modname, qualname = split_full_qualified_name(stripped)
-                if qualname:
-                    parents = qualname.split(".")
-                else:
-                    parents = []
-
-            if modname is None:
+                modname = path.rstrip('.')
+            else:
                 # if documenting a toplevel object without explicit module,
                 # it can be contained in another auto directive ...
                 modname = self.env.temp_data.get('autodoc:module')
@@ -1015,13 +1013,8 @@ def resolve_name(self, modname: str, parents: Any, path: str, base: Any
                 # ... if still None, there's no way to know
                 if mod_cls is None:
                     return None, []
-
-            try:
-                modname, qualname = split_full_qualified_name(mod_cls)
-                parents = qualname.split(".") if qualname else []
-            except ImportError:
-                parents = mod_cls.split(".")
-
+            modname, sep, cls = mod_cls.rpartition('.')
+            parents = [cls]
             # if the module name is still missing, get it like above
             if not modname:
                 modname = self.env.temp_data.get('autodoc:module')
diff --git a/sphinx/ext/autodoc/typehints.py b/sphinx/ext/autodoc/typehints.py
index b763bdfc780..4f81a6eaeb8 100644
--- a/sphinx/ext/autodoc/typehints.py
+++ b/sphinx/ext/autodoc/typehints.py
@@ -46,11 +46,16 @@ def merge_typehints(app: Sphinx, domain: str, objtype: str, contentnode: Element
     if objtype == 'class' and app.config.autoclass_content not in ('init', 'both'):
         return
 
-    signature = cast(addnodes.desc_signature, contentnode.parent[0])
-    if signature['module']:
-        fullname = '.'.join([signature['module'], signature['fullname']])
-    else:
-        fullname = signature['fullname']
+    try:
+        signature = cast(addnodes.desc_signature, contentnode.parent[0])
+        if signature['module']:
+            fullname = '.'.join([signature['module'], signature['fullname']])
+        else:
+            fullname = signature['fullname']
+    except KeyError:
+        # signature node does not have valid context info for the target object
+        return
+
     annotations = app.env.temp_data.get('annotations', {})
     if annotations.get(fullname, {}):
         field_lists = [n for n in contentnode if isinstance(n, nodes.field_list)]
diff --git a/sphinx/ext/autosummary/generate.py b/sphinx/ext/autosummary/generate.py
index 7583d9894e3..d908e208822 100644
--- a/sphinx/ext/autosummary/generate.py
+++ b/sphinx/ext/autosummary/generate.py
@@ -230,7 +230,8 @@ def scan(self, imported_members: bool) -> List[str]:
 def generate_autosummary_content(name: str, obj: Any, parent: Any,
                                  template: AutosummaryRenderer, template_name: str,
                                  imported_members: bool, app: Any,
-                                 recursive: bool, context: Dict) -> str:
+                                 recursive: bool, context: Dict,
+                                 modname: str = None, qualname: str = None) -> str:
     doc = get_documenter(app, obj, parent)
 
     def skip_member(obj: Any, name: str, objtype: str) -> bool:
@@ -319,7 +320,9 @@ def get_modules(obj: Any) -> Tuple[List[str], List[str]]:
         ns['attributes'], ns['all_attributes'] = \
             get_members(obj, {'attribute', 'property'})
 
-    modname, qualname = split_full_qualified_name(name)
+    if modname is None or qualname is None:
+        modname, qualname = split_full_qualified_name(name)
+
     if doc.objtype in ('method', 'attribute', 'property'):
         ns['class'] = qualname.rsplit(".", 1)[0]
 
@@ -401,7 +404,8 @@ def generate_autosummary_docs(sources: List[str], output_dir: str = None,
         ensuredir(path)
 
         try:
-            name, obj, parent, mod_name = import_by_name(entry.name)
+            name, obj, parent, modname = import_by_name(entry.name)
+            qualname = name.replace(modname + ".", "")
         except ImportError as e:
             _warn(__('[autosummary] failed to import %r: %s') % (entry.name, e))
             continue
@@ -411,7 +415,8 @@ def generate_autosummary_docs(sources: List[str], output_dir: str = None,
             context.update(app.config.autosummary_context)
 
         content = generate_autosummary_content(name, obj, parent, template, entry.template,
-                                               imported_members, app, entry.recursive, context)
+                                               imported_members, app, entry.recursive, context,
+                                               modname, qualname)
 
         filename = os.path.join(path, name + suffix)
         if os.path.isfile(filename):
diff --git a/sphinx/ext/viewcode.py b/sphinx/ext/viewcode.py
index a2eeb78915a..dc24a1993e0 100644
--- a/sphinx/ext/viewcode.py
+++ b/sphinx/ext/viewcode.py
@@ -131,10 +131,8 @@ def env_merge_info(app: Sphinx, env: BuildEnvironment, docnames: Iterable[str],
 
 def missing_reference(app: Sphinx, env: BuildEnvironment, node: Element, contnode: Node
                       ) -> Node:
-    if app.builder.format != 'html':
-        return None
-    elif node['reftype'] == 'viewcode':
-        # resolve our "viewcode" reference nodes -- they need special treatment
+    # resolve our "viewcode" reference nodes -- they need special treatment
+    if node['reftype'] == 'viewcode':
         return make_refnode(app.builder, node['refdoc'], node['reftarget'],
                             node['refid'], contnode)
 
diff --git a/sphinx/util/__init__.py b/sphinx/util/__init__.py
index 286c9171419..a864bb97a09 100644
--- a/sphinx/util/__init__.py
+++ b/sphinx/util/__init__.py
@@ -615,26 +615,16 @@ def split_full_qualified_name(name: str) -> Tuple[str, str]:
               Therefore you need to mock 3rd party modules if needed before
               calling this function.
     """
-    from sphinx.util import inspect
-
     parts = name.split('.')
     for i, part in enumerate(parts, 1):
         try:
             modname = ".".join(parts[:i])
-            module = import_module(modname)
-
-            # check the module has a member named as attrname
-            #
-            # Note: This is needed to detect the attribute having the same name
-            #       as the module.
-            #       ref: https://github.com/sphinx-doc/sphinx/issues/7812
-            attrname = parts[i]
-            if hasattr(module, attrname):
-                value = inspect.safe_getattr(module, attrname)
-                if not inspect.ismodule(value):
-                    return ".".join(parts[:i]), ".".join(parts[i:])
+            import_module(modname)
         except ImportError:
-            return ".".join(parts[:i - 1]), ".".join(parts[i - 1:])
+            if parts[:i - 1]:
+                return ".".join(parts[:i - 1]), ".".join(parts[i - 1:])
+            else:
+                return None, ".".join(parts)
         except IndexError:
             pass
 
diff --git a/tests/roots/test-ext-autodoc/target/name_conflict/__init__.py b/tests/roots/test-ext-autodoc/target/name_conflict/__init__.py
new file mode 100644
index 00000000000..7ad521fc25a
--- /dev/null
+++ b/tests/roots/test-ext-autodoc/target/name_conflict/__init__.py
@@ -0,0 +1,5 @@
+from .foo import bar
+
+class foo:
+    """docstring of target.name_conflict::foo."""
+    pass
diff --git a/tests/roots/test-ext-autodoc/target/name_conflict/foo.py b/tests/roots/test-ext-autodoc/target/name_conflict/foo.py
new file mode 100644
index 00000000000..bb83ca0d4b7
--- /dev/null
+++ b/tests/roots/test-ext-autodoc/target/name_conflict/foo.py
@@ -0,0 +1,2 @@
+class bar:
+    """docstring of target.name_conflict.foo::bar."""
diff --git a/tests/test_ext_autodoc.py b/tests/test_ext_autodoc.py
index e4ec4a8152c..652c7f10bca 100644
--- a/tests/test_ext_autodoc.py
+++ b/tests/test_ext_autodoc.py
@@ -121,15 +121,16 @@ def verify(objtype, name, result):
     verify('class', 'Base', ('test_ext_autodoc', ['Base'], None, None))
 
     # for members
-    directive.env.ref_context['py:module'] = 'foo'
-    verify('method', 'util.SphinxTestApp.cleanup',
-           ('foo', ['util', 'SphinxTestApp', 'cleanup'], None, None))
-    directive.env.ref_context['py:module'] = 'util'
+    directive.env.ref_context['py:module'] = 'sphinx.testing.util'
+    verify('method', 'SphinxTestApp.cleanup',
+           ('sphinx.testing.util', ['SphinxTestApp', 'cleanup'], None, None))
+    directive.env.ref_context['py:module'] = 'sphinx.testing.util'
     directive.env.ref_context['py:class'] = 'Foo'
     directive.env.temp_data['autodoc:class'] = 'SphinxTestApp'
-    verify('method', 'cleanup', ('util', ['SphinxTestApp', 'cleanup'], None, None))
+    verify('method', 'cleanup',
+           ('sphinx.testing.util', ['SphinxTestApp', 'cleanup'], None, None))
     verify('method', 'SphinxTestApp.cleanup',
-           ('util', ['SphinxTestApp', 'cleanup'], None, None))
+           ('sphinx.testing.util', ['SphinxTestApp', 'cleanup'], None, None))
 
 
 def test_format_signature(app):
@@ -800,14 +801,14 @@ def test_autodoc_inner_class(app):
     actual = do_autodoc(app, 'class', 'target.Outer.Inner', options)
     assert list(actual) == [
         '',
-        '.. py:class:: Outer.Inner()',
-        '   :module: target',
+        '.. py:class:: Inner()',
+        '   :module: target.Outer',
         '',
         '   Foo',
         '',
         '',
-        '   .. py:method:: Outer.Inner.meth()',
-        '      :module: target',
+        '   .. py:method:: Inner.meth()',
+        '      :module: target.Outer',
         '',
         '      Foo',
         '',
@@ -1881,6 +1882,43 @@ def test_overload(app):
     ]
 
 
+@pytest.mark.sphinx('html', testroot='ext-autodoc')
+def test_pymodule_for_ModuleLevelDocumenter(app):
+    app.env.ref_context['py:module'] = 'target.classes'
+    actual = do_autodoc(app, 'class', 'Foo')
+    assert list(actual) == [
+        '',
+        '.. py:class:: Foo()',
+        '   :module: target.classes',
+        '',
+    ]
+
+
+@pytest.mark.sphinx('html', testroot='ext-autodoc')
+def test_pymodule_for_ClassLevelDocumenter(app):
+    app.env.ref_context['py:module'] = 'target.methods'
+    actual = do_autodoc(app, 'method', 'Base.meth')
+    assert list(actual) == [
+        '',
+        '.. py:method:: Base.meth()',
+        '   :module: target.methods',
+        '',
+    ]
+
+
+@pytest.mark.sphinx('html', testroot='ext-autodoc')
+def test_pyclass_for_ClassLevelDocumenter(app):
+    app.env.ref_context['py:module'] = 'target.methods'
+    app.env.ref_context['py:class'] = 'Base'
+    actual = do_autodoc(app, 'method', 'meth')
+    assert list(actual) == [
+        '',
+        '.. py:method:: Base.meth()',
+        '   :module: target.methods',
+        '',
+    ]
+
+
 @pytest.mark.sphinx('dummy', testroot='ext-autodoc')
 def test_autodoc(app, status, warning):
     app.builder.build_all()
@@ -1899,3 +1937,26 @@ def test_autodoc(app, status, warning):
 
 alias of bug2437.autodoc_dummy_foo.Foo"""
     assert warning.getvalue() == ''
+
+
+@pytest.mark.sphinx('html', testroot='ext-autodoc')
+def test_name_conflict(app):
+    actual = do_autodoc(app, 'class', 'target.name_conflict.foo')
+    assert list(actual) == [
+        '',
+        '.. py:class:: foo()',
+        '   :module: target.name_conflict',
+        '',
+        '   docstring of target.name_conflict::foo.',
+        '',
+    ]
+
+    actual = do_autodoc(app, 'class', 'target.name_conflict.foo.bar')
+    assert list(actual) == [
+        '',
+        '.. py:class:: bar()',
+        '   :module: target.name_conflict.foo',
+        '',
+        '   docstring of target.name_conflict.foo::bar.',
+        '',
+    ]
diff --git a/tests/test_ext_autodoc_autofunction.py b/tests/test_ext_autodoc_autofunction.py
index 579ad9f488e..da090d83a90 100644
--- a/tests/test_ext_autodoc_autofunction.py
+++ b/tests/test_ext_autodoc_autofunction.py
@@ -85,8 +85,8 @@ def test_methoddescriptor(app):
     actual = do_autodoc(app, 'function', 'builtins.int.__add__')
     assert list(actual) == [
         '',
-        '.. py:function:: int.__add__(self, value, /)',
-        '   :module: builtins',
+        '.. py:function:: __add__(self, value, /)',
+        '   :module: builtins.int',
         '',
         '   Return self+value.',
         '',
diff --git a/tests/test_ext_autodoc_configs.py b/tests/test_ext_autodoc_configs.py
index 674620df043..88519b5fdf6 100644
--- a/tests/test_ext_autodoc_configs.py
+++ b/tests/test_ext_autodoc_configs.py
@@ -13,6 +13,8 @@
 
 import pytest
 
+from sphinx.testing import restructuredtext
+
 from test_ext_autodoc import do_autodoc
 
 IS_PYPY = platform.python_implementation() == 'PyPy'
@@ -633,6 +635,12 @@ def test_autodoc_typehints_description(app):
             in context)
 
 
+@pytest.mark.sphinx('text', testroot='ext-autodoc',
+                    confoverrides={'autodoc_typehints': "description"})
+def test_autodoc_typehints_description_for_invalid_node(app):
+    text = ".. py:function:: hello; world"
+    restructuredtext.parse(app, text)  # raises no error
+
 
 @pytest.mark.sphinx('html', testroot='ext-autodoc')
 def test_autodoc_default_options(app):
diff --git a/tox.ini b/tox.ini
index d9f04054406..ccfd60f8462 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 2.4.0
-envlist = docs,flake8,mypy,coverage,py{35,36,37,38,39},du{12,13,14,15}
+envlist = docs,flake8,mypy,twine,coverage,py{35,36,37,38,39},du{12,13,14,15}
 
 [testenv]
 usedevelop = True
@@ -88,6 +88,16 @@ extras =
 commands =
     python utils/doclinter.py CHANGES CONTRIBUTING.rst README.rst doc/
 
+[testenv:twine]
+basepython = python3
+description =
+    Lint package.
+deps =
+    twine
+commands =
+    python setup.py release bdist_wheel sdist
+    twine check dist/*
+
 [testenv:bindep]
 description =
     Install binary dependencies.
diff --git a/utils/release-checklist b/utils/release-checklist
index 5a60e59c84c..582d2668566 100644
--- a/utils/release-checklist
+++ b/utils/release-checklist
@@ -11,7 +11,6 @@ for stable releases
 * ``git commit -am 'Bump to X.Y.Z final'``
 * ``make clean``
 * ``python setup.py release bdist_wheel sdist``
-* ``twine check dist/Sphinx-*``
 * ``twine upload dist/Sphinx-* --sign --identity [your GPG key]``
 * open https://pypi.org/project/Sphinx/ and check there are no obvious errors
 * ``sh utils/bump_docker.sh X.Y.Z``
@@ -38,7 +37,6 @@ for first beta releases
 * ``git commit -am 'Bump to X.Y.0 beta1'``
 * ``make clean``
 * ``python setup.py release bdist_wheel sdist``
-* ``twine check dist/Sphinx-*``
 * ``twine upload dist/Sphinx-* --sign --identity [your GPG key]``
 * open https://pypi.org/project/Sphinx/ and check there are no obvious errors
 * ``git tag vX.Y.0b1``
@@ -67,7 +65,6 @@ for other beta releases
 * ``git commit -am 'Bump to X.Y.0 betaN'``
 * ``make clean``
 * ``python setup.py release bdist_wheel sdist``
-* ``twine check dist/Sphinx-*``
 * ``twine upload dist/Sphinx-* --sign --identity [your GPG key]``
 * open https://pypi.org/project/Sphinx/ and check there are no obvious errors
 * ``git tag vX.Y.0bN``
@@ -95,7 +92,6 @@ for major releases
 * ``git commit -am 'Bump to X.Y.0 final'``
 * ``make clean``
 * ``python setup.py release bdist_wheel sdist``
-* ``twine check dist/Sphinx-*``
 * ``twine upload dist/Sphinx-* --sign --identity [your GPG key]``
 * open https://pypi.org/project/Sphinx/ and check there are no obvious errors
 * ``sh utils/bump_docker.sh X.Y.Z``