Dmengine doesn't work on samsung phones

morgerion · February 17, 2020, 4:00pm

A few months ago, I noticed that dmengine stopped working on my Galaxy Note 3. Well then, anything can happen.
But now when we are developing a game on Defold, we faced with the fact that dmengine doesn’t work on samsung phones we have - S10, Note10, A70 (and Note 3). These are new models (except Note 3). On our other phones (ZTE, Blackview) it works.

We run the editor on Windows 10. The behavior is always the same - a very loooong download, and then an error java.io.IOException:

Who is to blame? What should we do?

Mathias_Westerdahl · February 17, 2020, 4:03pm

That sounds very unfortunate.
Do you have any logs? (the exception in itself isn’t very revealing)
Some tips to provide more info: https://defold.com/manuals/getting-help/?q=get%20help

What is your steps to reproduce?
Do you have any native extensions?

morgerion · February 17, 2020, 4:21pm

This applies to any project, including official tutorials from the site.

  2020-02-17 18:26:18.423 383206 [HTTP-Dispatcher] ERROR editor.error-reporting - {:line 98}
java.io.IOException: insufficient bytes written to stream
	at jdk.httpserver/sun.net.httpserver.FixedLengthOutputStream.close(FixedLengthOutputStream.java:89)
	at jdk.httpserver/sun.net.httpserver.PlaceholderOutputStream.close(ExchangeImpl.java:455)
	at util.http_server$response__GT_exchange_BANG_$fn__36870.invoke(http_server.clj:38)
	at util.http_server$response__GT_exchange_BANG_.invokeStatic(http_server.clj:38)
	at util.http_server$setup_server_BANG_$reify__36888.handle(http_server.clj:49)
	at jdk.httpserver/com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:77)
	at jdk.httpserver/sun.net.httpserver.AuthFilter.doFilter(AuthFilter.java:82)
	at jdk.httpserver/com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:80)
	at jdk.httpserver/sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(ServerImpl.java:692)
	at jdk.httpserver/com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:77)
	at jdk.httpserver/sun.net.httpserver.ServerImpl$Exchange.run(ServerImpl.java:664)
	at jdk.httpserver/sun.net.httpserver.ServerImpl$DefaultExecutor.execute(ServerImpl.java:159)
	at jdk.httpserver/sun.net.httpserver.ServerImpl$Dispatcher.handle(ServerImpl.java:442)
	at jdk.httpserver/sun.net.httpserver.ServerImpl$Dispatcher.run(ServerImpl.java:408)
	at java.base/java.lang.Thread.run(Thread.java:834)

Mathias_Westerdahl · February 17, 2020, 4:25pm

I’m guessing here. You …:

…bundle to Android
…install it on the phone
…launch the app on the phone
…set the phone as target from the editor
… press “Build and Run”, to launch the new built data on the phone

Is this correct?

morgerion · February 17, 2020, 4:26pm

Yes!

Mathias_Westerdahl · February 17, 2020, 4:28pm

And, since you mention Samsung fails, I assume the other brands work?

morgerion · February 17, 2020, 4:30pm

Yes. But we have only few other brands. Mostly samsung.

Mathias_Westerdahl · February 17, 2020, 4:42pm

Sure, but the ones you have work.

To be frank, I don’t think we’ve changed anything that could cause this type of behavior, as far as I know.
I know we have some speed issue when uploading, but I haven’t heard of it totally failing.
I wonder if the logcat says anything?

For the Galaxy Note 3, perhaps it was that we upgraded our lowest supported api level to 16 (Android 4.1)?

morgerion · February 17, 2020, 5:01pm

I will try to take the data from the logcat later.
Yes, my Galaxy Note 3 has Android 5.0 - i worked with Defold on this phone all summer and autumn (2019).

britzl · February 18, 2020, 5:24am

I’m guessing that the project has changed since then? More files = more data to transfer. What’s the size of the project if bundled? Can you build and generate a size report?

morgerion · February 18, 2020, 10:48am

It doesn’t depends on the project. As an option for verification, I use the monarch example.
But even so, the size of my project is only 6 MB.

britzl · February 18, 2020, 11:58am

How many different machines have you tried? Have you tried on more than one network? Have you tried on macOS or Linux? Do you have antivirus software or similar that might prevent or slow down the connection?

morgerion · February 18, 2020, 12:03pm

4 Win 10 desktops and notebooks in our office
2 Win 7 desktops at our homes
No antiviruses or something similar

britzl · February 18, 2020, 12:07pm

Ok, and it’s only the Samsung phones that doesn’t work? Are you connecting to them over USB or wifi?

morgerion · February 18, 2020, 1:36pm

Yes, only samsung. Other phones works.
In all cases we used a Wi-Fi connection.

Mathias_Westerdahl · February 18, 2020, 1:56pm

Could it be some new setting/functionality on the Samsung phones that produces this issue?

morgerion · February 18, 2020, 2:19pm

Note 10 / S10 / A70 has systems out of the box.
On my Note 3, the software has not been updated for many years, and I definitely havn’t changed the settings since the autumn when it was still working.

Mathias_Westerdahl · February 18, 2020, 3:05pm

This is indeed strange.
It would be great to try to pinpoint a certain release.
I wonder if it could be related to the new SSL library we added in 1.2.162.

Here is the editor for 1.2.161 (I grabbed the sha1 from d.defold.com)

WIn32
OSX
Linux

Perhaps you can try it with the monarch example?

morgerion · February 18, 2020, 4:20pm

britzl · February 18, 2020, 4:46pm

And what if you connect to the phone using usb to eliminate any questions of potential network issues?