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idle-monitor: Postpone dispatching of idle timeout if not ready

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If we update the ready time while the source is already in the
to-dispatch list, changing the ready time doesn't have any effect, and
the source will still be dispatched. This could cause incorrect idle
watch firing causing the power management plugin in
gnome-settings-daemon to sometimes turn off monitors due to it believing
the user had been idle for some time, while in fact, they just logged
back in.

Fix this by not actually dispatching the idle timeout if the ready time
is in the future when actually dispatching.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/543
This commit is contained in:
Jonas Ådahl 2019-04-16 18:07:31 +02:00 committed by Georges Basile Stavracas Neto
parent 23a8ea2821
commit 1ca0fdc928
1 changed files with 7 additions and 0 deletions
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7
src/backends/meta-idle-monitor.c
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@ -316,6 +316,13 @@ idle_monitor_dispatch_timeout (GSource *source,
gpointer user_data)
{
MetaIdleMonitorWatch *watch = (MetaIdleMonitorWatch *) user_data;
int64_t now;
int64_t ready_time;
now = g_source_get_time (source);
ready_time = g_source_get_ready_time (source);
if (ready_time > now)
return G_SOURCE_CONTINUE;
_meta_idle_monitor_watch_fire (watch);
g_source_set_ready_time (watch->timeout_source, -1);