diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/client/qwaylanddisplay.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/client/qwaylanddisplay.cpp b/src/client/qwaylanddisplay.cpp index b2372f088..178b26199 100644 --- a/src/client/qwaylanddisplay.cpp +++ b/src/client/qwaylanddisplay.cpp @@ -343,6 +343,15 @@ sync_callback(void *data, struct wl_callback *callback, uint32_t serial) bool *done = static_cast<bool *>(data); *done = true; + + // If the wl_callback done event is received after the condition check in the while loop in + // forceRoundTrip(), but before the call to processEvents, the call to processEvents may block + // forever if no more events are posted (eventhough the callback is handled in response to the + // aboutToBlock signal). Hence, we wake up the event dispatcher so forceRoundTrip may return. + // (QTBUG-64696) + if (auto *dispatcher = QThread::currentThread()->eventDispatcher()) + dispatcher->wakeUp(); + wl_callback_destroy(callback); } |