这是Qt6.2.4版本的多屏代码，在同一品牌和同一型号时会存在BUG.
以下是Qt6.2.3的代码，经检查Qt5.15.2/Qt6.2.5/Qt6.8.2都不会存在该BUG

static bool monitorData(HMONITOR hMonitor, QWindowsScreenData *data)
{
    MONITORINFOEX info;
    memset(&info, 0, sizeof(MONITORINFOEX));
    info.cbSize = sizeof(MONITORINFOEX);
    if (GetMonitorInfo(hMonitor, &info) == FALSE)
        return false;

    data->hMonitor = hMonitor;
    data->geometry = QRect(QPoint(info.rcMonitor.left, info.rcMonitor.top), QPoint(info.rcMonitor.right - 1, info.rcMonitor.bottom - 1));
    data->availableGeometry = QRect(QPoint(info.rcWork.left, info.rcWork.top), QPoint(info.rcWork.right - 1, info.rcWork.bottom - 1));
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  问题在这行开始，它通过getPathInfo()获取一个友名，然后如果是相同品牌且同一型号时，其友名是相同的。从而导致data->name被初始化为友名。
    DISPLAYCONFIG_PATH_INFO pathInfo = {};
    const bool hasPathInfo = getPathInfo(info, &pathInfo);
    if (hasPathInfo) {
        DISPLAYCONFIG_TARGET_DEVICE_NAME deviceName = {};
        deviceName.header.type = DISPLAYCONFIG_DEVICE_INFO_GET_TARGET_NAME;
        deviceName.header.size = sizeof(DISPLAYCONFIG_TARGET_DEVICE_NAME);
        deviceName.header.adapterId = pathInfo.targetInfo.adapterId;
        deviceName.header.id = pathInfo.targetInfo.id;
        if (DisplayConfigGetDeviceInfo(&deviceName.header) == ERROR_SUCCESS)
            data->name = QString::fromWCharArray(deviceName.monitorFriendlyDeviceName);
    }
    if (data->name.isEmpty())
        data->name = QString::fromWCharArray(info.szDevice);


《《《《《《
    if (wcscmp(info.szDevice, L"WinDisc") == 0) {
        data->flags |= QWindowsScreenData::LockScreen;
    } else {
        if (const HDC hdc = CreateDC(info.szDevice, nullptr, nullptr, nullptr)) {
            const QDpi dpi = monitorDPI(hMonitor);
            data->dpi = dpi.first > 0 ? dpi : deviceDPI(hdc);
            data->depth = GetDeviceCaps(hdc, BITSPIXEL);
            data->format = data->depth == 16 ? QImage::Format_RGB16 : QImage::Format_RGB32;
            data->physicalSizeMM = QSizeF(GetDeviceCaps(hdc, HORZSIZE), GetDeviceCaps(hdc, VERTSIZE));
            const int refreshRate = GetDeviceCaps(hdc, VREFRESH);
            if (refreshRate > 1) // 0,1 means hardware default.
                data->refreshRateHz = refreshRate;
            DeleteDC(hdc);
        } else {
            qWarning("%s: Unable to obtain handle for monitor '%s', defaulting to %g DPI.",
                     __FUNCTION__, qPrintable(QString::fromWCharArray(info.szDevice)),
                     data->dpi.first);
        } // CreateDC() failed
    } // not lock screen

以下是Qt6.2.3的代码，经检查Qt5.15.2/Qt6.2.5/Qt6.8.2都不会存在该BUG：

static bool monitorData(HMONITOR hMonitor, QWindowsScreenData *data)
{
    MONITORINFOEX info;
    memset(&info, 0, sizeof(MONITORINFOEX));
    info.cbSize = sizeof(MONITORINFOEX);
    if (GetMonitorInfo(hMonitor, &info) == FALSE)
        return false;

    data->hMonitor = hMonitor;
    data->geometry = QRect(QPoint(info.rcMonitor.left, info.rcMonitor.top), QPoint(info.rcMonitor.right - 1, info.rcMonitor.bottom - 1));
    data->availableGeometry = QRect(QPoint(info.rcWork.left, info.rcWork.top), QPoint(info.rcWork.right - 1, info.rcWork.bottom - 1));
    data->name = QString::fromWCharArray(info.szDevice);
    if (data->name == u"WinDisc") {
        data->flags |= QWindowsScreenData::LockScreen;
    } else {
        if (const HDC hdc = CreateDC(info.szDevice, nullptr, nullptr, nullptr)) {
            const QDpi dpi = monitorDPI(hMonitor);
            data->dpi = dpi.first > 0 ? dpi : deviceDPI(hdc);
            data->depth = GetDeviceCaps(hdc, BITSPIXEL);
            data->format = data->depth == 16 ? QImage::Format_RGB16 : QImage::Format_RGB32;
            data->physicalSizeMM = QSizeF(GetDeviceCaps(hdc, HORZSIZE), GetDeviceCaps(hdc, VERTSIZE));
            const int refreshRate = GetDeviceCaps(hdc, VREFRESH);
            if (refreshRate > 1) // 0,1 means hardware default.
                data->refreshRateHz = refreshRate;
            DeleteDC(hdc);
        } else {
            qWarning("%s: Unable to obtain handle for monitor '%s', defaulting to %g DPI.",
                     __FUNCTION__, qPrintable(QString::fromWCharArray(info.szDevice)),
                     data->dpi.first);
        } // CreateDC() failed
    } // not lock screen