Found roughly the cause of the freeze. This callback randomly stops
calling back:
connect(window(), &QQuickWindow::frameSwapped, m_surface,
&MirSurfaceInterface::onCompositorSwappedBuffers,
(Qt::ConnectionType) (Qt::DirectConnection | Qt::UniqueConnection));
and so this function no longer retrieves new buffers, just returns
early:
void MirSurface::updateTexture()
{
QMutexLocker locker(&m_mutex);
if (m_textureUpdated) {
return;
}
** Changed in: unity8 (Ubuntu)
Status: New => Invalid
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Touch seeded packages, which is subscribed to unity8 in Ubuntu.
https://bugs.launchpad.net/bugs/1497828
Title:
Apps appear to freeze in Unity8, although they are really still
rendering (swap interval zero). Need to interact with the shell to
unfreeze it.
Status in QtMir:
New
Status in qtmir package in Ubuntu:
New
Status in unity8 package in Ubuntu:
Invalid
Bug description:
Apps appear to freeze in Unity8, although they are really still
rendering (swap interval zero). Need to interact with the shell to
unfreeze it.
Test case (on Unity8 wily desktop):
$ glmark2-mir -b :title=--desktop_file_hint=unity8
This freezes a couple of times during the benchmark.
Test case (on a phone):
$ mir_demo_client_target -n--desktop_file_hint=unity8
This freezes very quickly when you move your finger around.
Test case (on a phone):
$ glmark2-es2-mir -b :title=--desktop_file_hint=unity8
To manage notifications about this bug go to:
https://bugs.launchpad.net/qtmir/+bug/1497828/+subscriptions
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