9 Replies Latest reply on Mar 8, 2018 10:21 AM by Intel Corporation

    Small transparent squares on Iris Graphics 540, OpenGL




      Answers (N/A if not applicable)


      Provide a detailed description of the issue

      Small transparent blocks appear in some OpenGL programs

      Please place an X to the right of the option showing how often you see this issue using specific steps. (Ex: 'Every few times a game is started it flickers.' <- This would be "Often")

      Always (100%):  X

      Often (51-99%):

      Sporadic (20-50%):

      Very Sporadic (<20%):

      Hardware (HW)

      Brand and Model of the system.

      NUC 6i5SYH

      Hybrid or switchable graphics system?
      ie Does it have AMD or NV graphics too?


      Make and model of any Displays that are used to see the issue (see note2 below).
      = Local Flat Panel (Laptop panel)
      EFP = External Flat Panel (Monitor you plug in)


      How much memory [RAM] in the system (see note2 below).


      Provide any other hardware needed to replicate the issue.
      ie: Cables&brand, cable type [vga, hdmi, DP, etc], dock, dongles/adapters, etc

      Connected to HDMI display

      Hardware Stepping (see note1 below).


      Software (SW)

      Operating System version (see note2 below).

      Win 10 Home 1709, Build 16299.214

      VBIOS (video BIOS) version. This can be found in “information page” of CUI (right click on Desktop and select “Graphics Properties”.


      Graphics Driver version; for both integrated Intel and 3rd party vendors (see note2 below).

      SW or Apps version used to replicate the issue.

      GpuTest_Windows_x64_0.7.0 from GpuTest - Cross-Platform GPU Stress Test and OpenGL Benchmark for Windows, Linux and OS X | Geeks3D.com


      Single display, clone, or extended (see note2 below).

      Single display

      Display resolution & refresh rate setting of each display (see note2 below).

      1920 x 1080, 59p Hz

      AC or DC mode, i.e. is power cable plugged in or not?


      How to repro

      Please provide steps to replicate the issue.  These steps are very crucial to finding the root cause and fix.
      A screenshot to illustrate the issue is a huge plus. A video of the failure is even better! Attach to the post or provide the YouTube link.

      1. Run GpuTest_GUI.exe
      2. Select "Triangle (OpenGL 2.1/3.0)" from top dropdown
      3. (You can also try other tests like Plot3D or PixMark Volplosion, these also will show the issue)
      4. Leave Fullscreen unchecked (although it does not matter)
      5. Set Resolution to 1920x1080, Antialiasing to 8X MSAA
      6. Click on "Run Benchmark"
      7. For the first few seconds while the progress bar is in the center of the screen, you should see this issue.
      8. This issue also manifests itself in some custom OpenGL applications in the same way, sometimes the squares are flipping between transparent/non-transparent.
      9. Graphic driver version, dated 2017-05-17, *does not* have this issue.
      10. Have also tried graphic drivers V22.20.16.4856, 2017-10-17 and V23.20.16.4877, 2017-12-01, both of these also has this issue.