From f562a522a30f3048da0f2fff7ee4950e53e8c462 Mon Sep 17 00:00:00 2001 From: Rui Matos Date: Tue, 6 Oct 2015 21:16:18 +0200 Subject: [PATCH] monitor-manager-xrandr: Work around spurious hotplugs on Xvnc Xvnc turns its outputs off/on on every mode set which makes us believe there was an hotplug when there actually wasn't. Work around this by requiring new randr configuration timestamps to be ahead of the last set timestamp by at least 100 ms for us to consider them an actual hotplug. --- .../x11/meta-monitor-manager-xrandr.c | 20 ++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/src/backends/x11/meta-monitor-manager-xrandr.c b/src/backends/x11/meta-monitor-manager-xrandr.c index e438d8f98..c6eb4b6aa 100644 --- a/src/backends/x11/meta-monitor-manager-xrandr.c +++ b/src/backends/x11/meta-monitor-manager-xrandr.c @@ -1063,6 +1063,19 @@ meta_monitor_manager_xrandr_class_init (MetaMonitorManagerXrandrClass *klass) g_quark_from_static_string ("-meta-monitor-xrandr-data"); } +static gboolean +is_xvnc (MetaMonitorManager *manager) +{ + MetaMonitorManagerXrandr *manager_xrandr = META_MONITOR_MANAGER_XRANDR (manager); + GList *l; + + for (l = meta_gpu_get_outputs (manager_xrandr->gpu); l; l = l->next) + if (g_str_has_prefix (((MetaOutput *)l->data)->name, "VNC-")) + return TRUE; + + return FALSE; +} + gboolean meta_monitor_manager_xrandr_handle_xevent (MetaMonitorManagerXrandr *manager_xrandr, XEvent *event) @@ -1072,6 +1085,7 @@ meta_monitor_manager_xrandr_handle_xevent (MetaMonitorManagerXrandr *manager_xra XRRScreenResources *resources; gboolean is_hotplug; gboolean is_our_configuration; + unsigned int timestamp; if ((event->type - manager_xrandr->rr_event_base) != RRScreenChangeNotify) return FALSE; @@ -1083,7 +1097,11 @@ meta_monitor_manager_xrandr_handle_xevent (MetaMonitorManagerXrandr *manager_xra gpu_xrandr = META_GPU_XRANDR (manager_xrandr->gpu); resources = meta_gpu_xrandr_get_resources (gpu_xrandr); - is_hotplug = resources->timestamp < resources->configTimestamp; + timestamp = resources->timestamp; + if (is_xvnc (manager)) + timestamp += 100; + + is_hotplug = (timestamp < resources->configTimestamp); is_our_configuration = (resources->timestamp == manager_xrandr->last_xrandr_set_timestamp); if (is_hotplug) -- 2.20.1