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Diffstat (limited to 'src/plugins/platforms/xcb/qxcbconnection_xi2.cpp')
-rw-r--r--src/plugins/platforms/xcb/qxcbconnection_xi2.cpp5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
index ce6dd7c035..b2dcf7c3e7 100644
--- a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
@@ -761,8 +761,9 @@ void QXcbConnection::xi2ProcessTouch(void *xiDevEvent, QXcbWindow *platformWindo
// Touches must be accepted when we are grabbing touch events. Otherwise the entire sequence
// will get replayed when the grab ends.
if (m_xiGrab) {
- // XIAllowTouchEvents deadlocks with libXi < 1.7.4 (this has nothing to do with the XI2 versions like 2.2)
- // http://lists.x.org/archives/xorg-devel/2014-July/043059.html
+ // Note that XIAllowTouchEvents is known to deadlock with older libXi versions,
+ // for details see qtbase/src/plugins/platforms/xcb/README. This has nothing to
+ // do with the XInput protocol version, but is a bug in libXi implementation instead.
XIAllowTouchEvents(static_cast<Display *>(m_xlib_display), xiDeviceEvent->deviceid,
xiDeviceEvent->detail, xiDeviceEvent->event, XIAcceptTouch);
}