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-rw-r--r--lib/observer/src/observer_tv_wx.erl14
1 files changed, 10 insertions, 4 deletions
diff --git a/lib/observer/src/observer_tv_wx.erl b/lib/observer/src/observer_tv_wx.erl
index da4cb8e041..acfa6a2a99 100644
--- a/lib/observer/src/observer_tv_wx.erl
+++ b/lib/observer/src/observer_tv_wx.erl
@@ -176,10 +176,16 @@ handle_call(Event, From, _State) ->
handle_cast(Event, _State) ->
error({unhandled_cast, Event}).
-handle_info(refresh_interval, State = #state{node=Node, grid=Grid, opt=Opt}) ->
- Tables = get_tables(Node, Opt),
- Tabs = update_grid(Grid, Opt, Tables),
- {noreply, State#state{tabs=Tabs}};
+handle_info(refresh_interval, State = #state{node=Node, grid=Grid, opt=Opt,
+ tabs=OldTabs}) ->
+ case get_tables(Node, Opt) of
+ OldTabs ->
+ %% no change
+ {noreply, State};
+ Tables ->
+ Tabs = update_grid(Grid, Opt, Tables),
+ {noreply, State#state{tabs=Tabs}}
+ end;
handle_info({active, Node}, State = #state{parent=Parent, grid=Grid, opt=Opt,
timer=Timer0}) ->