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  1. Qt
  2. QTBUG-85524

Transparent windows don't work in Windows with certain NVIDIA GPUs

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Details

    • Bug
    • Resolution: Out of scope
    • P3: Somewhat important
    • None
    • 5.12.2, 5.13.2, 5.14.2, 5.15.0
    • GUI: Window management, Quick: SceneGraph
    • None
    • Windows 10 Pro
    • Windows

    Description

      Creating a transparent window for QML applications results in a black window on NVIDIA GPUs. QWidget works as expected and results in a transparent window.

      As far as I've seen, this doesn't happen on ATI GPU or Intel graphics.

      There's related issues about this but none of them provided a work around or sufficient information about why the bug is happening.

      Here's the related bug: QTBUG-28214

      And that one also links to other related tickets.

      Here's the system information:

      ------------------
System Information
------------------
         Operating System: Windows 10 Pro 64-bit (10.0, Build 18362) (18362.19h1_release.190318-1202)
                 Language: English (Regional Setting: English)
      System Manufacturer: ASUSTeK COMPUTER INC.
             System Model: N550JX
                     BIOS: N550JX.205 (type: UEFI)
                Processor: Intel(R) Core(TM) i7-4720HQ CPU @ 2.60GHz (8 CPUs), ~2.6GHz
                   Memory: 8192MB RAM
      Available OS Memory: 7634MB RAM
                Page File: 8892MB used, 1953MB available
          DirectX Version: DirectX 12
         User DPI Setting: 96 DPI (100 percent)
       System DPI Setting: 120 DPI (125 percent)
          DWM DPI Scaling: Disabled
                 Miracast: Available, with HDCP
Microsoft Graphics Hybrid: Supported
 DirectX Database Version: 1.1.5
           DxDiag Version: 10.00.18362.0387 64bit Unicode---------------
Display Devices
---------------
           Card name: Intel(R) HD Graphics 4600
        Manufacturer: Intel Corporation
           Chip type: Intel(R) HD Graphics Family
            DAC type: Internal
         Device Type: Full Device (POST)
          Device Key: Enum\PCI\VEN_8086&DEV_0416&SUBSYS_11CD1043&REV_06
       Device Status: 0180200A [DN_DRIVER_LOADED|DN_STARTED|DN_DISABLEABLE|DN_NT_ENUMERATOR|DN_NT_DRIVER] 
 Device Problem Code: No Problem
 Driver Problem Code: Unknown
      Display Memory: 2160 MB
    Dedicated Memory: 112 MB
       Shared Memory: 2048 MB
        Current Mode: 2560 x 1080 (32 bit) (59Hz)
         HDR Support: Not Supported
    Display Topology: External
 Display Color Space: DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709
     Color Primaries: Red(0.651367,0.332031), Green(0.306641,0.630859), Blue(0.150391,0.059570), White Point(0.313477,0.329102)
   Display Luminance: Min Luminance = 0.500000, Max Luminance = 270.000000, MaxFullFrameLuminance = 270.000000
        Monitor Name: LG ULTRAWIDE(HDMI)
       Monitor Model: LG ULTRAWIDE
          Monitor Id: GSM59F1
         Native Mode: 2560 x 1080(p) (60.000Hz)
         Output Type: HDMI
Monitor Capabilities: HDR Not Supported
Display Pixel Format: DISPLAYCONFIG_PIXELFORMAT_32BPP
      Advanced Color: Not Supported
         Driver Name: igdumdim64.dll,igd10iumd64.dll,igd10iumd64.dll,igd12umd64.dll
 Driver File Version: 20.19.0015.4549 (English)
      Driver Version: 20.19.15.4549
         DDI Version: 12
      Feature Levels: 11_1,11_0,10_1,10_0,9_3,9_2,9_1
        Driver Model: WDDM 2.0
 Graphics Preemption: Primitive
  Compute Preemption: Thread group
            Miracast: Supported
      Detachable GPU: No
 Hybrid Graphics GPU: Integrated
      Power P-states: Not Supported
      Virtualization: Not Supported
          Block List: No Blocks
  Catalog Attributes: N/A
   Driver Attributes: Final Retail
    Driver Date/Size: 09/11/2016 8:00:00 PM, 39863888 bytes
         WHQL Logo'd: Yes
     WHQL Date Stamp: Unknown
   Device Identifier: {D7B78E66-4756-11CF-3662-C231BAC2D935}
           Vendor ID: 0x8086
           Device ID: 0x0416
           SubSys ID: 0x11CD1043
         Revision ID: 0x0006
  Driver Strong Name: oem40.inf:5f63e534dd929195:iHSWM_w10:20.19.15.4549:pci\ven_8086&dev_0416&subsys_11cd1043
      Rank Of Driver: 00D10001
         Video Accel: ModeMPEG2_A ModeMPEG2_C ModeWMV9_C ModeVC1_C 
        D3D9 Overlay: Supported
             DXVA-HD: Supported
        DDraw Status: Enabled
          D3D Status: Enabled
          AGP Status: Enabled
       MPO MaxPlanes: 1
            MPO Caps: Not Supported
         MPO Stretch: Not Supported
     MPO Media Hints: Not Supported
         MPO Formats: Not Supported
    PanelFitter Caps: Not Supported
 PanelFitter Stretch: Not Supported           Card name: NVIDIA GeForce GTX 950M
        Manufacturer: NVIDIA
           Chip type: GeForce GTX 950M
            DAC type: Integrated RAMDAC
         Device Type: Render-Only Device
       Device Status: 0180200A [DN_DRIVER_LOADED|DN_STARTED|DN_DISABLEABLE|DN_NT_ENUMERATOR|DN_NT_DRIVER] 
 Device Problem Code: No Problem
 Driver Problem Code: Unknown
      Display Memory: 7882 MB
    Dedicated Memory: 4065 MB
       Shared Memory: 3816 MB
        Current Mode: Unknown
         HDR Support: Unknown
    Display Topology: Unknown
 Display Color Space: Unknown
     Color Primaries: Unknown
   Display Luminance: Unknown
 Driver File Version: 23.21.0013.8857 (English)
      Driver Version: 23.21.13.8857
         DDI Version: 12
      Feature Levels: 11_0,10_1,10_0,9_3,9_2,9_1
        Driver Model: WDDM 2.3
 Graphics Preemption: DMA
  Compute Preemption: DMA
            Miracast: Not Supported by Graphics driver
      Detachable GPU: No
 Hybrid Graphics GPU: Discrete
      Power P-states: Not Supported
      Virtualization: Not Supported
          Block List: No Blocks
  Catalog Attributes: Universal:N/A Declarative:N/A 
   Driver Attributes: Final Retail
    Driver Date/Size: 03/12/2017 8:00:00 PM, 945368 bytes
         WHQL Logo'd: Yes
     WHQL Date Stamp: Unknown
   Device Identifier: Unknown
           Vendor ID: 0x10DE
           Device ID: 0x139A
           SubSys ID: 0x11CD1043
         Revision ID: 0x00A2
  Driver Strong Name: oem31.inf:0f066de31bfecfc6:Section142:23.21.13.8857:pci\ven_10de&dev_139a&subsys_11cd1043
      Rank Of Driver: 00D10001
         Video Accel: Unknown
         DXVA2 Modes: DXVA2_ModeMPEG2_VLD  DXVA2_ModeVC1_D2010  DXVA2_ModeVC1_VLD  DXVA2_ModeH264_VLD_Stereo_Progressive_NoFGT  DXVA2_ModeH264_VLD_Stereo_NoFGT  DXVA2_ModeH264_VLD_NoFGT  DXVA2_ModeHEVC_VLD_Main  DXVA2_ModeMPEG4pt2_VLD_Simple  DXVA2_ModeMPEG4pt2_VLD_AdvSimple_NoGMC  
      Deinterlace Caps: n/a
        D3D9 Overlay: Unknown
             DXVA-HD: Unknown
        DDraw Status: Enabled
          D3D Status: Enabled
          AGP Status: Enabled
       MPO MaxPlanes: 0
            MPO Caps: Not Supported
         MPO Stretch: Not Supported
     MPO Media Hints: Not Supported
         MPO Formats: Not Supported
    PanelFitter Caps: Not Supported
 PanelFitter Stretch: Not Supported

       

      EDIT: The problem occurs with the following configuration as well:

       

      3D Device
Vendor : NVIDIA Corporation
Video Processor 1 : Intel(R) UHD Graphics Family
Video Processor 2 : Quadro P2000 with Max-Q Design
Video Memory : 1023 MB
Video Driver File Version : 26.20.100.7529OpenGL Support
OpenGL Version : 4.6.0 NVIDIA 432.13
OpenGL 2.0 - Supported
OpenGL Shader Objects - Supported
OpenGL Vertex Shader - Supported
OpenGL Fragment Shader - Supported
OpenGL Vertex Buffer Objects - Supported
OpenGL Frame Buffer Objects - Supported

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            janichol Andy Nichols
            furkanzmc Furkan Üzümcü
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            Dates

              Created:
              Updated:
              Resolved:

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