OffScreen Rendering GPU 2623

[fokz]

Well I have nVidias Optimus system so maybe this is the case. It has along with Intel HD also GeForce GTX 860M

[fddima]

Well I have nVidias Optimus system so maybe this is the case. It has along with Intel HD also GeForce GTX 860M

Try to disable or force your's discrete video for your's/ cefclient app to be sure that this is this case. If it this then i'm sure that seen some issues with it somewhere with cef and even chromium, but can't remember exactly... google it.

[fokz]

Well I have nVidias Optimus system so maybe this is the case. It has along with Intel HD also GeForce GTX 860M

Try to disable or force your's discrete video for your's/ cefclient app to be sure that this is this case. If it this then i'm sure that seen some issues with it somewhere with cef and even chromium, but can't remember exactly... google it.

By default the integrated Intel HD was used. I forced the usage of nVidia GPU using the documented 'trick' to enable high performance GPU, namely:

Code: Select all

extern "C" {
  _declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
}


Yet I see no difference in the behaviour whatsover it still blinks and crashes. Can it be connected to the fact that my APP initialized OpenGL on it's own and that messes up with CEF? Although as far as I remember Chromium uses ANGLE so it actually must initialize DirectX for the renderer process right? Can this conflict somehow? Anyway if this did not happen in previous branch and downgrading EGL and GLESv2 libs patched the renderer process crashing problem something is clearly fishy here.

[azeno]

Had the same issues as described here using Xilium.CefGlue (3.2840.1513.gf7effc7) - solution for me was to add

Code: Select all

  <application xmlns="urn:schemas-microsoft-com:asm.v3">
    <windowsSettings>
      <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true</dpiAware>
    </windowsSettings>
  </application>


to app.manifest file of the browser sub process.

Hope that helps someone else.

[JipBoes]

Same issue on Win7 64bit, build: 3.2704.1427.g95055fe

[solarisx]

Same issue on Windows 10 Pro 64bit (1703) with Nvidia GTX 1080 and AMD Ryzen 7 1700X. No second graphics card.
CEF version cef_binary_3.2704.1434.gec3e9ed_windows32.

I try to use off-screen rendering of a website with webgl content. Result is continuously closing and opening of browser windows.
Error:

Code: Select all

[0726/163419:ERROR:gpu_process_transport_factory.cc(669)] Lost UI shared context.
[0726/163420:ERROR:gpu_process_transport_factory.cc(669)] Lost UI shared context.
[0726/163422:ERROR:gpu_process_transport_factory.cc(669)] Lost UI shared context.

Command Arguments are: --off-screen-rendering-enabled --enable-gpu

Have not tried the latest cef version. Is it worth the effort?

Greets

[magreenblatt]

3071 branch and newer uses swiftshader to support WebGL with software rendering.