diff --git a/.ci/setup-windows.sh b/.ci/setup-windows.sh
index 05d4aec5f2..adbb2d61af 100755
--- a/.ci/setup-windows.sh
+++ b/.ci/setup-windows.sh
@@ -10,8 +10,9 @@ PR_NUMBER="$SYSTEM_PULLREQUEST_PULLREQUESTID"
 QT_HOST="http://mirrors.ocf.berkeley.edu/qt/"
 #QT_HOST="http://qt.mirror.constant.com/"
 QT_URL_VER=$(echo "$QT_VER" | sed "s/\.//g")
-QT_PREFIX="online/qtsdkrepository/windows_x86/desktop/qt5_${QT_URL_VER}/qt.qt5.${QT_URL_VER}.win64_msvc2017_64/${QT_VER}-0-${QT_DATE}"
-QT_SUFFIX="-Windows-Windows_10-MSVC2017-Windows-Windows_10-X86_64.7z"
+QT_VER_MSVC_UP=$(echo ${QT_VER_MSVC} | tr '[:lower:]' '[:upper:]')
+QT_PREFIX="online/qtsdkrepository/windows_x86/desktop/qt${QT_VER_MAIN}_${QT_URL_VER}/qt.qt${QT_VER_MAIN}.${QT_URL_VER}.win64_${QT_VER_MSVC}_64/${QT_VER}-0-${QT_DATE}"
+QT_SUFFIX="-Windows-Windows_10-${QT_VER_MSVC_UP}-Windows-Windows_10-X86_64.7z"
 QT_BASE_URL="${QT_HOST}${QT_PREFIX}qtbase${QT_SUFFIX}"
 QT_WINE_URL="${QT_HOST}${QT_PREFIX}qtwinextras${QT_SUFFIX}"
 QT_DECL_URL="${QT_HOST}${QT_PREFIX}qtdeclarative${QT_SUFFIX}"
diff --git a/BUILDING.md b/BUILDING.md
index 742b051ffe..391c7b888e 100644
--- a/BUILDING.md
+++ b/BUILDING.md
@@ -9,11 +9,11 @@ Other instructions may be found [here](https://wiki.rpcs3.net/index.php?title=Bu
 
 * [CMake 3.14.1+](https://www.cmake.org/download/) (add to PATH)
 * [Python 3.3+](https://www.python.org/downloads/) (add to PATH)
-* [Qt 5.14.2](https://www.qt.io/download-qt-installer)
+* [Qt 5.15.2](https://www.qt.io/download-qt-installer)
 * [Visual Studio 2019](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=Community)
 * [Vulkan SDK 1.1.126+](https://vulkan.lunarg.com/sdk/home) (See "Install the SDK" [here](https://vulkan.lunarg.com/doc/sdk/latest/windows/getting_started.html))
 
-**Either add the** `QTDIR` **environment variable, e.g.** `<QtInstallFolder>\5.14.2\msvc2017_64\` **, or use the [Visual Studio Qt Plugin](https://marketplace.visualstudio.com/items?itemName=TheQtCompany.QtVisualStudioTools2019)**
+**Either add the** `QTDIR` **environment variable, e.g.** `<QtInstallFolder>\5.15.2\msvc2019_64\` **, or use the [Visual Studio Qt Plugin](https://marketplace.visualstudio.com/items?itemName=TheQtCompany.QtVisualStudioTools2019)**
 
 ### Linux
 
@@ -21,7 +21,7 @@ These are the essentials tools to build RPCS3 on Linux. Some of them can be inst
 
 * Clang 9+ or GCC 9+
 * [CMake 3.14.1+](https://www.cmake.org/download/)
-* [Qt 5.14.2](https://www.qt.io/download-qt-installer)
+* [Qt 5.15.2](https://www.qt.io/download-qt-installer)
 * [Vulkan SDK 1.1.126+](https://vulkan.lunarg.com/sdk/home) (See "Install the SDK" [here](https://vulkan.lunarg.com/doc/sdk/latest/linux/getting_started.html))
 * [SDL2](https://www.libsdl.org/download-2.0.php) (for the FAudio backend)
 
@@ -41,10 +41,10 @@ Ubuntu is usually horrendously out of date, and some packages need to be downloa
 Ubuntu usually does not have a new enough Qt package to suit rpcs3's needs. There is a PPA available to work around this. Run the following:
 ```
 . /etc/os-release
-sudo add-apt-repository ppa:beineri/opt-qt-5.14.2-$UBUNTU_CODENAME
+sudo add-apt-repository ppa:beineri/opt-qt-5.15.2-$UBUNTU_CODENAME
 sudo apt-get update
-sudo apt-get install qt514-meta-minimal qt514svg
-. /opt/qt514/bin/qt514-env.sh >/dev/null 2>&1
+sudo apt-get install qt515-meta-minimal qt515svg
+. /opt/qt515/bin/qt515-env.sh >/dev/null 2>&1
 ```
 
 ##### GCC 9.x installation
@@ -103,7 +103,7 @@ git submodule update --init
 #### Configuring the Qt plugin (if used)
 
 1) Go to the Qt5 menu and edit Qt5 options.
-2) Add the path to your Qt installation with compiler e.g. `<QtInstallFolder>\5.14.2\msvc2017_64`.
+2) Add the path to your Qt installation with compiler e.g. `<QtInstallFolder>\5.15.2\msvc2019_64`.
 3) While selecting the rpcs3qt project, go to Qt5->Project Setting and select the version you added.
 
 #### Building the projects
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index bd2fce8182..a984ff8159 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -33,13 +33,13 @@ jobs:
     displayName: ccache
 
   - bash: |
-      docker pull --quiet rpcs3/rpcs3-travis-xenial:1.6
+      docker pull --quiet rpcs3/rpcs3-travis-xenial:1.7
       docker run                      \
         -v $(pwd):/rpcs3              \
         --env-file .ci/docker.env \
         -v $CCACHE_DIR:/root/.ccache  \
         -v $BUILD_ARTIFACTSTAGINGDIRECTORY:/root/artifacts \
-        rpcs3/rpcs3-travis-xenial:1.6 \
+        rpcs3/rpcs3-travis-xenial:1.7 \
         /rpcs3/.ci/build-linux.sh
     displayName: Docker setup and build
 
@@ -56,9 +56,11 @@ jobs:
 - job: Windows_Build
   variables:
     COMPILER: msvc
-    QT_VER: '5.14.2'
-    QT_DATE: '202003291224'
-    QTDIR: C:\Qt\$(QT_VER)\msvc2017_64
+    QT_VER_MAIN: '5'
+    QT_VER: '5.15.2'
+    QT_VER_MSVC: 'msvc2019'
+    QT_DATE: '202011130602'
+    QTDIR: C:\Qt\$(QT_VER)\$(QT_VER_MSVC)_64
     VULKAN_VER: '1.2.154.1'
     VULKAN_SDK_SHA: 'b64471f3a720e649c1fae6535ea83b8c642655ebed1485bfdf15bf4d88f746d9'
     VULKAN_SDK: C:\VulkanSDK\$(VULKAN_VER)
diff --git a/rpcs3/rpcs3qt/pad_settings_dialog.cpp b/rpcs3/rpcs3qt/pad_settings_dialog.cpp
index 20772f78a1..9590799a13 100644
--- a/rpcs3/rpcs3qt/pad_settings_dialog.cpp
+++ b/rpcs3/rpcs3qt/pad_settings_dialog.cpp
@@ -301,7 +301,7 @@ void pad_settings_dialog::InitButtons()
 	m_padButtons->addButton(ui->b_refresh, button_ids::id_refresh);
 	m_padButtons->addButton(ui->b_addProfile, button_ids::id_add_profile);
 
-	connect(m_padButtons, static_cast<void(QButtonGroup::*)(int)>(&QButtonGroup::buttonClicked), this, &pad_settings_dialog::OnPadButtonClicked);
+	connect(m_padButtons, &QButtonGroup::idClicked, this, &pad_settings_dialog::OnPadButtonClicked);
 
 	connect(&m_timer, &QTimer::timeout, [this]()
 	{
@@ -1260,7 +1260,7 @@ void pad_settings_dialog::ChangeInputType()
 	{
 		if (is_ldd_pad)
 		{
-			ui->chooseDevice->addItem(tr("Custom Controller"));
+			ui->chooseDevice->setPlaceholderText(tr("Custom Controller"));
 			break;
 		}
 		[[fallthrough]];
@@ -1277,9 +1277,6 @@ void pad_settings_dialog::ChangeInputType()
 
 	// Handle empty device list
 	bool config_enabled = force_enable || (m_handler->m_type != pad_handler::null && ui->chooseDevice->count() > 0);
-	ui->chooseDevice->setEnabled(config_enabled);
-	ui->chooseClass->setEnabled(config_enabled);
-	ui->chooseProduct->setEnabled(config_enabled);
 
 	if (config_enabled)
 	{
@@ -1306,7 +1303,7 @@ void pad_settings_dialog::ChangeInputType()
 
 		if (profiles.isEmpty())
 		{
-			QString def_name = "Default Profile";
+			const QString def_name = "Default Profile";
 			if (CreateConfigFile(profile_dir, def_name))
 			{
 				ui->chooseProfile->addItem(def_name);
@@ -1327,21 +1324,24 @@ void pad_settings_dialog::ChangeInputType()
 	}
 	else
 	{
-		ui->chooseProfile->addItem(tr("No Profiles"));
+		ui->chooseProfile->setPlaceholderText(tr("No Profiles"));
 
 		if (ui->chooseDevice->count() == 0)
 		{
-			ui->chooseDevice->addItem(tr("No Device Detected"), -1);
+			ui->chooseDevice->setPlaceholderText(tr("No Device Detected"));
 		}
 	}
 
-	// enable configuration and profile list if possible
+	// Enable configuration and profile list if possible
 	SwitchButtons(config_enabled && m_handler->m_type == pad_handler::keyboard);
-	ui->b_addProfile->setEnabled(config_enabled);
-	ui->chooseProfile->setEnabled(config_enabled);
 
 	ui->buttonBox->button(QDialogButtonBox::RestoreDefaults)->setEnabled(!is_ldd_pad);
-	ui->chooseHandler->setEnabled(!is_ldd_pad);
+	ui->b_addProfile->setEnabled(config_enabled);
+	ui->chooseProfile->setEnabled(config_enabled && ui->chooseProfile->count() > 0);
+	ui->chooseDevice->setEnabled(config_enabled && ui->chooseDevice->count() > 0);
+	ui->chooseClass->setEnabled(config_enabled && ui->chooseClass->count() > 0);
+	ui->chooseProduct->setEnabled(config_enabled && ui->chooseProduct->count() > 0);
+	ui->chooseHandler->setEnabled(!is_ldd_pad && ui->chooseHandler->count() > 0);
 }
 
 void pad_settings_dialog::ChangeProfile()
diff --git a/rpcs3/rpcs3qt/settings_dialog.cpp b/rpcs3/rpcs3qt/settings_dialog.cpp
index 05d599d45c..3fef24f671 100644
--- a/rpcs3/rpcs3qt/settings_dialog.cpp
+++ b/rpcs3/rpcs3qt/settings_dialog.cpp
@@ -231,7 +231,7 @@ settings_dialog::settings_dialog(std::shared_ptr<gui_settings> gui_settings, std
 	else
 	{
 		ui->enableTSX->setEnabled(false);
-		ui->enableTSX->addItem(tr("Not supported", "Enable TSX"));
+		ui->enableTSX->setPlaceholderText(tr("Not supported", "Enable TSX"));
 		SubscribeTooltip(ui->enableTSX, tr("Unfortunately your CPU model does not support this instruction set.", "Enable TSX"));
 
 		m_emu_settings->SetSetting(emu_settings_type::EnableTSX, fmt::format("%s", tsx_usage::disabled));
@@ -555,14 +555,15 @@ settings_dialog::settings_dialog(std::shared_ptr<gui_settings> gui_settings, std
 			// Fill combobox with placeholder if no adapters needed
 			if (!renderer.has_adapters)
 			{
-				ui->graphicsAdapterBox->addItem(tr("Not needed for %1 renderer", "Graphics adapter").arg(text));
+				ui->graphicsAdapterBox->clear();
+				ui->graphicsAdapterBox->setPlaceholderText(tr("Not needed for %0 renderer", "Graphics adapter").arg(text));
 				return;
 			}
+
 			// Fill combobox
-			for (const auto& adapter : renderer.adapters)
-			{
-				ui->graphicsAdapterBox->addItem(adapter);
-			}
+			ui->graphicsAdapterBox->clear();
+			ui->graphicsAdapterBox->addItems(renderer.adapters);
+
 			// Reset Adapter to old config
 			int idx = ui->graphicsAdapterBox->findText(renderer.old_adapter);
 			if (idx < 0)
@@ -1057,18 +1058,11 @@ settings_dialog::settings_dialog(std::shared_ptr<gui_settings> gui_settings, std
 
 	ui->searchBox->setPlaceholderText(tr("Search libraries", "Library search box"));
 
-	auto on_lib_button_clicked = [this](int ind)
+	auto on_lib_button_clicked = [this](int id)
 	{
-		if (ind != static_cast<int>(lib_loading_type::liblv2only))
-		{
-			ui->searchBox->setEnabled(true);
-			ui->lleList->setEnabled(true);
-		}
-		else
-		{
-			ui->searchBox->setEnabled(false);
-			ui->lleList->setEnabled(false);
-		}
+		const bool enableLibs = id != static_cast<int>(lib_loading_type::liblv2only);
+		ui->searchBox->setEnabled(enableLibs);
+		ui->lleList->setEnabled(enableLibs);
 	};
 
 	auto on_search_box_text_changed = [this](QString text)
@@ -1101,7 +1095,7 @@ settings_dialog::settings_dialog(std::shared_ptr<gui_settings> gui_settings, std
 	};
 
 	// Events
-	connect(lib_mode_bg, static_cast<void(QButtonGroup::*)(int)>(&QButtonGroup::buttonClicked), on_lib_button_clicked);
+	connect(lib_mode_bg, &QButtonGroup::idClicked, on_lib_button_clicked);
 	connect(ui->searchBox, &QLineEdit::textChanged, on_search_box_text_changed);
 
 	// enable multiselection (there must be a better way)
@@ -1798,11 +1792,7 @@ void settings_dialog::SnapSlider(QSlider *slider, int interval)
 void settings_dialog::AddGuiConfigs()
 {
 	ui->combo_configs->clear();
-
-	for (const QString& entry : m_gui_settings->GetConfigEntries())
-	{
-		ui->combo_configs->addItem(entry);
-	}
+	ui->combo_configs->addItems(m_gui_settings->GetConfigEntries());
 
 	m_current_gui_config = m_gui_settings->GetValue(gui::m_currentConfig).toString();