Emulator

Dolphin UI - not game specific

What's the problem? Describe what went wrong.

In v2606a (Windows x64) -- most recently deployed version.
State problem was discovered in:

• New install
• VS dependencies accounted for
• Under Controller:

Dolphin immediately becomes not responsive and heavily stalls for consistent periods of 4.7 seconds. This is most and readily problematic on version 2026a, and is less responsive than the 2023a UI under the same minimal set of interactions (i.e. leaving the UI completely idle.) This problem is persistent across several menu settings and consequently hangs the emulator during gameplay.

Attached is a local Winbdg analysis.txt file. Getting to the log file is as far as my knowledge goes.

What are your PC specifications? (CPU, GPU, Operating System, more)

CPU Model       : 12th Gen Intel(R) Core(TM) i7-12700K
Physical Cores  : 12
Logical Threads : 20
Max Clock (MHz) : 3600
GPU Model       : NVIDIA GeForce RTX 3070
VRAM            : 8 GB
GPU Driver      : 32.0.16.1074

Stack Trace of the Issue:

00  win32u!NtUserSystemParametersInfo+0x14
01  USER32!RealSystemParametersInfoW+0x123
02  UxTheme!ClassicSystemParametersInfoW+0x38
03  UxTheme!ThemeSystemParametersInfoW+0xbc
04  USER32!SystemParametersInfoW+0x5a
05  Qt6Widgets!QWindowsStylePrivate::pixelMetricFromSystemDp+0xf7
06  Qt6Widgets!QWindowsStyle::pixelMetric+0x32
07  qwindowsvistastyle!qt_plugin_instance+0xf1a4
08  Qt6Widgets!QPushButton::`default constructor closure'+0x17890
09  Qt6Widgets!QScrollBar::sizeHint+0xb0
0a  Qt6Widgets!QSystemTrayIcon::messageClicked+0x144a
0b  Qt6Widgets!QSystemTrayIcon::messageClicked+0x1052
0c  Qt6Widgets!QAbstractScrollArea::event+0x545
0d  Qt6Widgets!QApplicationPrivate::notify_helper+0x10e
0e  Qt6Widgets!QApplication::notify+0x1877
0f  Qt6Core!QCoreApplication::notifyInternal2+0xc5

10  Qt6Widgets!QWidgetPrivate::setStyle_helper+0x1ed
11  Qt6Widgets!QWidgetPrivate::inheritStyle+0x191
12  Qt6Widgets!QWidgetPrivate::setStyle_helper+0x12f
13  Qt6Widgets!QWidgetPrivate::inheritStyle+0x191
14  Qt6Widgets!QWidgetPrivate::setStyle_helper+0x12f
15  Qt6Widgets!QWidgetPrivate::inheritStyle+0x191
16  Qt6Widgets!QWidgetPrivate::setStyle_helper+0x12f
17  Qt6Widgets!QWidgetPrivate::setStyle_helper+0x12f
18  Qt6Widgets!QWidgetPrivate::inheritStyle+0x191
19  Qt6Widgets!QWidgetPrivate::setStyle_helper+0x12f
1a  Qt6Widgets!QWidgetPrivate::setStyle_helper+0x12f
1b  Qt6Widgets!QWidgetPrivate::inheritStyle+0x191
1c  Qt6Widgets!QWidgetPrivate::setStyle_helper+0x12f
1d  Qt6Widgets!QWidgetPrivate::inheritStyle+0x191

1e  Qt6Widgets!QWidget::setStyleSheet+0x94
1f  Qt6Widgets!QApplication::setStyle+0x211
20  Qt6Widgets!QApplication::setStyle+0x21
21  Dolphin+0x2220ac
22  Dolphin+0x11e856

23  Qt6Widgets!QWidget::event+0x85e
24  Qt6Widgets!QApplicationPrivate::notify_helper+0x10e
25  Qt6Widgets!QApplication::notify+0x1877
26  Qt6Core!QCoreApplication::notifyInternal2+0xc5

27  Qt6Widgets!QWidgetRepaintManager::rhi+0x268c
28  Qt6Widgets!QApplicationPrivate::notify_helper+0x10e
29  Qt6Widgets!QApplication::notify+0x1877
2a  Qt6Core!QCoreApplication::notifyInternal2+0xc5

2b  Qt6Gui!QGuiApplicationPrivate::processThemeChanged+0x23e
2c  Qt6Gui!QWindowSystemInterface::sendWindowSystemEvents+0x80
2d  Qt6Gui!QWindowSystemInterface::flushWindowSystemEvents+0x183
2e  qwindows!qt_plugin_instance+0x5eae
2f  qwindows!qt_plugin_instance+0x7635
30  USER32!UserCallWinProcCheckWow+0x356
31  USER32!DispatchClientMessage+0x9c
32  USER32!_fnDWORD+0x33
33  ntdll!KiUserCallbackDispatcherContinue
34  win32u!NtUserDispatchMessage+0x14
35  USER32!DispatchMessageWorker+0x348

36  Qt6Core!QEventDispatcherWin32::processEvents+0x506
37  Qt6Gui!QWindowsGuiEventDispatcher::processEvents+0x19
38  Qt6Core!QEventLoop::exec+0x1c4
39  Qt6Core!QCoreApplication::exec+0x169
3a  Dolphin+0x1cfdf1

Main issue seems to be constant, repeated calling of:

• QWidgetPrivate::setStyle_helper
• QWidgetPrivate::inheritStyle
• QWidgetPrivate::setStyle_helper
  occurring on the UI thread, causing the whole display to buffer.

It seems there's an issue with the event handler miscalling/overcalling widgets. It is easier to get 2026a to stall than 2023a in the controller/configuration menu via button spam, however, the stalling is agnostic to which menu it's on.