Conversion Gets Failed When Deploying in Azure Function Windows Randomly

[karmegams02]

Is there an existing issue for this?

• I have searched both open/closed issues, no issue already exists.

CefSharp Version

119.4.30

Operating System

Windows 10

Architecture

x64

.Net Version

Net 8.0

Implementation

OffScreen

Reproduction Steps

Download and extract the attached sample.
Deploy the application to an Azure Function with the Windows Consumption Plan.
After successful deployment,
you can view the error log details in your Azure Function's Log Stream.

Expected behavior

Convert the Html to pdf document in azure function app windows without any failure.

Actual behavior

We are converting a URL to PDF using the CefSharp.OffScreen.NETCore package. However, we are randomly encountering the error "GPU process isn't usable," causing the conversion to fail with a "500. The request timed out.". We have attempted to resolve this issue by adding command-line arguments, but without success. Please refer to the details below to reproduce the issue.

Regression?

No response

Known Workarounds

No response

Does this problem also occur in the CEF Sample Application

Yes using WPF/OffScreen command line args

Other information

No response

[karmegams02]

Hi Team,
Please find the Azure function sample.

Direct_CEF_Conversion.zip

Regards,
Karmegam

[amaitland]

Please create a git repo here on github and push the code there (I don't review zip files, it's near impossible to give constructive feedback where I can comment in a github repo)

[amaitland]

"GPU process isn't usable,"

Converting to discussion as GPU process is entirely implemented in Chromium and not something that we can fix from a CefSharp point of view.

What version are you using? Please only open an issue if you can reproduce the problem with version 130.1.90 or later.

As per the bug report template please don't open issues for old unsupported versions.

https://github.com/cefsharp/CefSharp/blob/master/.github/ISSUE_TEMPLATE/bug_report.yml

I'd suggest trying the current supported version M131 at time of writing.

To detect the GPU correctly Chromium requires that the executing process is Windows 10 compatible, for a standard exe you'd use an app.manifest as described in https://github.com/cefsharp/CefSharp/wiki/Quick-Start-For-MS-.Net-5.0-or-greater#40-add-appmanifest-to-your-application

I know very little about Azure functions, my guess would be that it's a dll that's loaded rather than an executable, so could be the root cause of your problem that Chromium cannot detect the GPU correctly.

You can try directly configuring the GPU process via https://peter.sh/experiments/chromium-command-line-switches/#use-angle command line arg.

For reference #4707

You could also try disabling the GPU or switching to SwANGLE (see
chromiumembedded/cef#3176 (comment) for example command line arg)