Application developed using QT can't show window

[rtd-qtforum]

May I ask why application developed using QT can't show window on a multi-monitor setup? There will only be a blank window and can only be viewed in the taskbar thumbnail. Is there anything I can do to prevent this?

Applications including but not limited to cmake-gui, paraview.
Thanks!

[wrosecrans]

@rtd-qtforum You'll need to be more specific about what you are doing or what's going wrong. I use Qt apps across multiple monitors all the time without any issues.

[Chris Kawa]

@rtd-qtforum s No such issues here either and I don't think I've ever seen such.
At the very least you should specify the OS, window manager, graphics driver and Qt version you're having these problems with.

[rtd-qtforum]

Thank you for the replies.

Here's the basic information about my laptop. I have connected to two displays, one is internal and the other is external.
I have found that the issue will only happen when the external display is attached, but if I detach the external display, the issue still may not resolve.

I also attached a log from Paraview, which may help identify the issue.
Paraview Debug Output

System Summary
OS Name Microsoft Windows 11 Pro
Version 10.0.22631 Build 22631
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Manufacturer LENOVO
System Model 82TD
System Type x64-based PC
System SKU LENOVO_MT_82TD_BU_idea_FM_Legion 7 16IAX7
Processor 12th Gen Intel(R) Core(TM) i9-12900HX, 2300 Mhz, 16 Core(s), 24 Logical Processor(s)
BIOS Version/Date LENOVO K1CN44WW, 8/17/2023
SMBIOS Version 3.4
Embedded Controller Version 1.36
BIOS Mode UEFI
BaseBoard Manufacturer LENOVO
Platform Role Mobile
Secure Boot State On
PCR7 Configuration Elevation Required to View
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume2
Locale United States
Hardware Abstraction Layer Version = "10.0.22621.2506"
Time Zone Pacific Standard Time
Installed Physical Memory (RAM) 64.0 GB
Total Physical Memory 63.7 GB
Available Physical Memory 30.9 GB
Total Virtual Memory 67.7 GB
Available Virtual Memory 24.5 GB
Page File Space 4.00 GB
Page File C:\pagefile.sys
Kernel DMA Protection On
Virtualization-based security Running
Virtualization-based security Required Security Properties
Virtualization-based security Available Security Properties Base Virtualization Support, Secure Boot, DMA Protection, UEFI Code Readonly, SMM Security Mitigations 1.0, Mode Based Execution Control, APIC Virtualization
Virtualization-based security Services Configured
Virtualization-based security Services Running
Windows Defender Application Control policy Enforced
Windows Defender Application Control user mode policy Off
Device Encryption Support Elevation Required to View
A hypervisor has been detected. Features required for Hyper-V will not be displayed.

Display Summary
Name NVIDIA GeForce RTX 3080 Ti Laptop GPU
PNP Device ID PCI\VEN_10DE&DEV_2460&SUBSYS_3F9517AA&REV_A1\4&1B34B0B3&0&0008
Adapter Type NVIDIA GeForce RTX 3080 Ti Laptop GPU, NVIDIA compatible
Adapter Description NVIDIA GeForce RTX 3080 Ti Laptop GPU
Adapter RAM (1,048,576) bytes
Installed Drivers C:\Windows\System32\DriverStore\FileRepository\nvltsi.inf_amd64_0adc7c076738dad1\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvltsi.inf_amd64_0adc7c076738dad1\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvltsi.inf_amd64_0adc7c076738dad1\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvltsi.inf_amd64_0adc7c076738dad1\nvldumdx.dll
Driver Version 31.0.15.4633
INF File oem150.inf (Section247 section)
Color Planes Not Available
Color Table Entries 4294967296
Resolution 3840 x 2160 x 60 hertz
Bits/Pixel 32
Memory Address 0x83000000-0x840FFFFF
Memory Address 0x0000-0x1FFFFFF
IRQ Channel IRQ 4294967214
Driver C:\WINDOWS\SYSTEM32\DRIVERSTORE\FILEREPOSITORY\NVLTSI.INF_AMD64_0ADC7C076738DAD1\NVLDDMKM.SYS (31.0.15.4633, 56.02 MB (58,741,280 bytes), 12/15/2023 5:41 PM)

Name Intel(R) UHD Graphics
PNP Device ID PCI\VEN_8086&DEV_4688&SUBSYS_3B1717AA&REV_0C\3&11583659&0&10
Adapter Type Intel(R) UHD Graphics Family, Intel Corporation compatible
Adapter Description Intel(R) UHD Graphics
Adapter RAM 1.00 GB (1,073,741,824 bytes)
Installed Drivers <>,C:\Windows\System32\DriverStore\FileRepository\iigd_dch.inf_amd64_8db4fc1f9863e4f6\igd10iumd64.dll,C:\Windows\System32\DriverStore\FileRepository\iigd_dch.inf_amd64_8db4fc1f9863e4f6\igd10iumd64.dll,C:\Windows\System32\DriverStore\FileRepository\iigd_dch.inf_amd64_8db4fc1f9863e4f6\igd12umd64.dll
Driver Version 31.0.101.3222
INF File oem18.inf (iADLSD_w10_DS section)
Color Planes Not Available
Color Table Entries 4294967296
Resolution 2560 x 1600 x 165 hertz
Bits/Pixel 32
Memory Address 0x2000000-0x2FFFFFF
Memory Address 0x0000-0xFFFFFFF
I/O Port 0x00005000-0x0000503F
IRQ Channel IRQ 4294967232
Driver C:\WINDOWS\SYSTEM32\DRIVERSTORE\FILEREPOSITORY\IIGD_DCH.INF_AMD64_8DB4FC1F9863E4F6\IGDKMDN64.SYS (31.0.101.3222, 42.68 MB (44,750,816 bytes), 9/21/2022 9:01 PM)