System.Runtime.InteropServices.COMException when make chart

[bool001]

Hi, I test my application on a laptop, when create a chart the UI is STUCK. And I get a exception with my bug reportor, below it is:

OS: Windows
Windows: 6.3.17134.0
Date: 2018-07-30T11:52:55.2269912Z

System.Runtime.InteropServices.COMException: UCEERR_RENDERTHREADFAILURE (HRESULT:0x88980406)
在 System.Windows.Media.Composition.DUCE.Channel.SyncFlush()
在 System.Windows.Interop.HwndTarget.UpdateWindowSettings(Boolean enableRenderTarget, Nullable`1 channelSet)
在 System.Windows.Interop.HwndTarget.UpdateWindowPos(IntPtr lParam)
在 System.Windows.Interop.HwndTarget.OnWindowPosChanging(IntPtr lParam)
在 System.Windows.Interop.HwndTarget.HandleMessage(WindowMessage msg, IntPtr wparam, IntPtr lparam)
在 System.Windows.Interop.HwndSource.HwndTargetFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
在 MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
在 MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

And below is my laptop information:
CPU: Intel(R) Core(TM) i5-7300HQ CPU @ 2.50GHz 2.50 GHz
RAM: 8.00 GB (7.48 GB Available)

[ArctionPasi]

Hi,

most likely reason for this, is to forget to Control.Invoke (WinForms) or Dispatcher.Invoke (WPF) when updating data from background thread to chart. For correct usage, please see ExampleThreadMultiChannel example in the demo applications.

[bool001]

Hi,

most likely reason for this, is to forget to Control.Invoke (WinForms) or Dispatcher.Invoke (WPF) when updating data from background thread to chart. For correct usage, please see ExampleThreadMultiChannel example in the demo applications.

Hi, thank you.
I provide some details:
1. My program use the LightingChart WPF lib.
2. There is no problem that run my program on other computers.
3. When run LightingChart official demo on this laptop, also occur same problem that it get stuck when create charts.
4. LightingChart Winform lib is OK, but WPF libs(bindable, Semi-bindable, non-bindable) all occur the problem.

Below is the detail of my laptop:
Manufacturer: LENOVO,
DeviceModel: 20J6A012CD,
TotalPhysicalMemoryInGB: 7GB,
OSVersion: Microsoft Windows NT 6.2.9200.0,
Is64BitOS: True,
ProcessorCount: 4,
CpuInfo: Intel(R) Core(TM) i5-7300HQ CPU @ 2.50GHz,
VideoControllerInfo: Intel(R) HD Graphics 630

I'm very grade to upload the demonstrate video if you leave me a mail address.

[ArctionPasi]

Hello,

so it seems to be a computer-specific problem. First, make sure all Windows Updates have been installed, and Intel drivers updated.

If the problem doesn't solve, please send us email on support [at} arction.com, and we'll give more detailed support there

[bool001]

My laptop has two video card drivers. Once disabled one, the chart is available now. I don't why. I look forward to get more detail about this problem. thank you!

[warnerwanton]

When an error occurs during object creation, a COMException (defined in System.Runtime.InteropServices) is thrown. The UnknownWrapper class is a helper class designed to be exposed to COM as a VARIANT. When you use the late-binding mechanism, you can avoid this behavior if you pass the parameters as UnKnownWrapper to methods that have parameters of type IUnKnown. The UnKnownWrapper constructor initializes a new instance of the UnknownWrapper class with the object that will be wrapped.

[symbolick]

Our software has been distributed to a large community using LightningChartUltimate WPF for the performance increases it provides. There are a number of users that crash with this exception on load while using a laptop with multiple video cards. We have to have one on one correspondence with users to correct this. The fixes we have found is that on windows 7 we have them disable the Intel integrated graphics card such that only their more powerful GPU is being used. When this is done the application executes as expected. Another work around we have found in the windows 10 environment is to go to graphics setting and manually add our application to the high performance option, which I believe does the same thing except at the application level rather than the whole of the OS.

It is a point of frustration for the end users and trainers as they are spending time trouble shooting technical issues rather than using the software as expected.

Has there been any research into how this can be fixed in code on our end or in an update from Arction?

Thanks,
Aaron

[Arction_LasseP]

Hello,

We haven't got many reports about this issue but we investigated this some time ago. However, we weren't able to reproduce it as this is not an error in LightningChart but in WPF in general. There is a bit old but still informative blog by Microsoft about these kinds of errors: https://blogs.msdn.microsoft.com/dsui_team/2013/11/18/wpf-render-thread-failures/
It seems that fixing this depends on the case, usually on the machine or the graphics card(s) used. In some cases, just updating the drivers can solve the issue.

If there is an issue with WPF application using LightningChart that cannot be solved by for example updating the drivers, we suggest sending an e-mail to support[at]arction.com with more details about the specific case and perhaps a way to reproduce the error. Currently we don't have a single solution on our end that can prevent all these kinds of errors from happening.