Yeah, I'm puzzled. On desktop, configuring with -DUSE_OPENGLES=1 has everything working. Qt is compiled with GL support on desktop, so this fact confuses me. With that configure flag, Qt does notified it has a GLES context, perhaps it is smart enough to then just use the right shaders & commands. Or else MESA is being forgiving at switching between GL and GLES.
Comparing the apitrace of the old qmake build versus a newer cmake build, this is the main change: - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0) - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2048, 1024, 0, GL_BGRA, GL_UNSIGNED_BYTE, NULL) + glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA, 2048, 1024, 0, GL_BGRA, GL_UNSIGNED_BYTE, NULL) Source of this line is the Scenegraph renderer: void Atlas::bind(QSGTexture::Filtering filtering) glTexImage2D(GL_TEXTURE_2D, 0, m_internalFormat, m_size.width(), m_size.height(), 0, m_externalFormat, GL_UNSIGNED_BYTE, 0); m_internalFormat is wrong after cmake change - it is GL_BGRA, which is the default if a non-GLES context is current. I compared the build commands between qmake and cmake: http://pastebin.ubuntu.com/9699667/ which shows me that the newer cmake is setting QT_USING_OPENGL and QTMIR_USE_OPENGL (as we'd expect), but qmake was not setting these. qmake worked, perhaps by accident -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1401968 Title: GTK applications don't work anymore under unity8 To manage notifications about this bug go to: https://bugs.launchpad.net/qtmir/+bug/1401968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs