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Rank: Newbie
Groups: Member
Joined: 6/13/2016
Posts: 2
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We are suffering severe performance problems of EO.WebBrowser under Win7 when a non Aero theme (Windows 7 Basic, for example) is used. Mouse clicks can take minutes to execute. Even Chrome's developer tools window suffers those problems. If we execute webView.Reload(); then page refreshes immediately (even developer tools). When an Aero theme is selected everything works fine.
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,080
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Hi, This appears to be an issue related to the GPU drivers on Windows 7. We have experienced similar issues in our test environment on an Oracle VM. In our environment Google Chrome browser would demonstrate the same problem as well and we have traced the problem to the VM's D3D driver in this case. So this is not something that we can easily fix on our end. I would recommend you to try to disable the GPU and see if it works. If you test with our TabbedBrowser sample application, you can add the following line in App.xaml.cs before creating the MainWindow:
Code: C#
EO.WebEngine.EngineOptions.Default.DisableGPU = true;
Please let us know if this resolves the issue for you in your environment. Thanks!
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Rank: Newbie
Groups: Member
Joined: 6/13/2016
Posts: 2
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Hi,
thanks for your help. Finally we found the problem; it turned out to be in our end: we were activating the WS_EX_COMPOSITED flag in the form containing the WebBrowser and that lead to the freezing.
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,080
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Thanks for the update. Glad to hear that you found out the root of the problem!
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