[Interest] EGL Error : Could not create the egl surface: error = 0x300b

[Denis Shienkov]

Or, maybe your app has wrong linking to *EGL libraries... for example, 
your target has own *EGL libraries path,

which is different than *EGL MESA libraries.  Check your ldd.

BR,

denis


27.04.2016 2:21, Thiago Macieira пишет:
> On terça-feira, 26 de abril de 2016 18:02:02 PDT Ryan Elkholy wrote:
>> Yes, sorry for that. Three questions:
>>
>> 1. How did you find that 0x300b was EGL_BAD_NATIVE_WINDOW?
> a) I searched the source code for the full error message and found that it was
> printing the return value of eglGetError()
>
> b) I googled for eglGetError() and found the possible error replies
>
> c) I grepped the EGL headers for an error constant (any of them) and then
> found the one close to it that had the value 0x300B.
>
>> 2. What is this caused by?
> According to Khronos docs, a bad EGLDisplay value. Most likely a null pointer.
>
> void QEglFSWindow::resetSurface()
> {
>      EGLDisplay display = screen()->display();
>      QSurfaceFormat platformFormat = qt_egl_device_integration()-
>> surfaceFormatFor(window()->requestedFormat());
>      m_config = QEglFSIntegration::chooseConfig(display, platformFormat);
>      m_format = q_glFormatFromConfig(display, m_config, platformFormat);
>      m_window = qt_egl_device_integration()->createNativeWindow(this, screen()-
>> geometry().size(), m_format);
>      m_surface = eglCreateWindowSurface(display, m_config, m_window, NULL);
> }
>
> Don't ask me why screen()->display() is returning a bad EGLDisplay. This is as
> far as I can go studying this codebase.
>
>> 3. Given that there is no obvious solution, how can I dig further into
>> debugging this?