Beaglebone Black Webengine fails

Gruener

Hi,
I've this problem already for a few days and I need help...
I would like to have a web browser without an X server ( with linuxfb ) on the Beaglebone Black.
To do this I compiled an image with QtWebengine using the Yocto project with the help of this Website.

My recives:
.
├── bbb
│ ├── build
│ └── meta-bbb
└── poky-dunfell
├── meta
├── meta-arm
├── meta-jumpnow
├── meta-openembedded
├── meta-poky
├── meta-qt5
├── meta-security
├── meta-selftest
├── meta-skeleton
└── meta-ti

The build process worked out very well...
Then I programmed a minimal browser with QWebEngineView.

Code:

int main (int argc, char * argv [])
{
    QApplication a (argc, argv);
    QWebEngineView view;
    view.setUrl (QUrl ("https://www.qt.io"));
    view.resize (1024,750);
    view.show ();
    return a.exec
}

When I run this program from the host PC everything works
perfect.

Then I compiled the code for the Beaglebone using the Yocto SDK.
Now when I run the program, the UI is displayed, but the WebView fails to load with these error messages:

$ dmesg
...
Unhandled prefetch abort: debug event (0x002) at 0xb27e5940
Unhandled prefetch abort: debug event (0x002) at 0xb27e5940

If I try to load another Webpage with webview.setUrl() these two error messages keeps spamming.

Next i tried to debug it with gdb, but with no success...
Have you any ideas where the problem is?

Thank you for your help,
Lukas

Soniatekniko

This post is deleted!

Pablo J. Rogina

@Gruener said in Beaglebone Black Webengine fails:

Have you any ideas where the problem is?

I'd try building a simple Qt GUI app (not using QWebEngine at all, with just a couple buttons and labels) and run it in the BBB.
That way I'll be able to rule if the problem is QWebEngine or something else related to your target device.

Gruener

@Pablo-J-Rogina

Thanks for replying :->
Yesterday I figured out what the problem was:
Had a problem with opengl and the sgx graphics driver.
But now it works perfectly