History graph card shows a previous value forever rather than update, when metering plug is off | Home Assistant | Page 1

limber obsidian Mar 25, 2025, 10:22 PM

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When I turn my Ikea Inspelning metering smart plug off, the history graph just shows the last known value until it updates again. I don't know if this is because it's reporting 0, or because it's not reporting anything, though on the smart plug's device page it does correctly report 0.0 W. The same problem exists in the history view.

Interestingly, when I deselect the other items from view, I am not able to even mouseover the erroneous "off" areas to get a tooltip, suggesting it does see it as missing data on some level.

I don't know if this is a problem with the card, with the plug or with my configuration.

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The image is the history view for just the device, which does correctly show 0 W and lets me get the tooltip for it too, unlike the graph card and the history view I get from clicking the graph card

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An extreme version shows up on my filtered version that I use to smooth the values, the flat red lines are just a lack of updates, but unlike the above, this error is already present in the history viewed directly via the helper

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ancient sierra Mar 25, 2025, 10:26 PM

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So long as the state is still 0, the graph will keep rendering 0.

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Ideally the sensor would change to unavailable if it was offline.

limber obsidian Mar 25, 2025, 10:26 PM

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I don't think the sensor ever does go offline

ancient sierra Mar 25, 2025, 10:27 PM

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Oh ok

limber obsidian Mar 25, 2025, 10:27 PM

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ancient sierra So long as the state is still 0, the graph will keep rendering 0.

I don't really have a way of showing it in a screenshot because the affected device goes from 1000W to an erroneous 2.3W, but it doesn't seem to be the case

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Maybe this works

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Hob should be at 0W for this

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Without air fryer enabled in the graph, it won't even give me a tooltip for the stuck sections, it jumps to the nearest non-stuck

ancient sierra Mar 25, 2025, 10:29 PM

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Nothing is "stuck".

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Sorry I think I'm not understanding you.

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The graph just graphs what the sensor value is.
Is your issue with the graph, or with the sensor state itself?

limber obsidian Mar 25, 2025, 10:30 PM

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I don't know, but I am leaning towards the graph

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The sensor state history viewed via the device page correctly shows 0W in between usages, when the smart plug is off, but the graph card as well as the history view accessed by clicking the graph card ">" refuse to update when the smart plug is off, instead showing the most recent value

ancient sierra Mar 25, 2025, 10:31 PM

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Hmm I'm not sure I believe that.

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I've never seen the graph not accurately showing the state of the sensor.

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Are you graphing that 0W sensor, or some derived/filtered version of it?

limber obsidian Mar 25, 2025, 10:33 PM

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I tried to get as close to the time from the image above as possible, you can see it's different

ancient sierra Mar 25, 2025, 10:34 PM

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I don't know what this is showing me.

limber obsidian Mar 25, 2025, 10:34 PM

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It's showing that the values differ between the two

ancient sierra Mar 25, 2025, 10:34 PM

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And?

limber obsidian Mar 25, 2025, 10:35 PM

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It's the same entity

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at the same time

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or as close as I could get it

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By the way, does "6 hours ago" mean it last changed 6 hours ago or that it was last received 6 hours ago? I am thinking changed

ancient sierra Mar 25, 2025, 10:36 PM

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That would be the last state change. (The time that it changed to 0 from non-0)

limber obsidian Mar 25, 2025, 10:36 PM

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ancient sierra Are you graphing that 0W sensor, or some derived/filtered version of it?

It's the same sensor, sensor.metering_smart_plug_c_power

ancient sierra Mar 25, 2025, 10:36 PM

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We don't tell you when it was received.

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You're comparing with this graph?

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limber obsidian Mar 25, 2025, 10:39 PM

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Yeah, that graph shows correct values, including 0W, the history graph card seems to ignore all 0W values (one way or another)

ancient sierra Mar 25, 2025, 10:39 PM

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Is it a log graph?

limber obsidian Mar 25, 2025, 10:39 PM

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No

ancient sierra Mar 25, 2025, 10:39 PM

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Can you go to history and download the CSV?

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for like 6-8pm

limber obsidian Mar 25, 2025, 10:43 PM

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Here is all day, and 6 to 8 (the latter has only one entry)

📎 history.csv 📎 history1.csv

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There are some values at the end of today because I just turned the plug on to test

ancient sierra Mar 25, 2025, 10:45 PM

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Hmm interesting. I can see what you mean.

limber obsidian Mar 25, 2025, 10:48 PM

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I'm personally more confused than ever, because shouldn't this be correct?

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It DID report a 0 correctly

ancient sierra Mar 25, 2025, 10:49 PM

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What if you made the graph of one entity only, not B and C

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does that make a difference?

limber obsidian Mar 25, 2025, 10:49 PM

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This is the view I get going from the entity's history and then saying open in history panel

ancient sierra Mar 25, 2025, 10:50 PM

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ok, so that looks right

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now if you add plug B it's wrong?

limber obsidian Mar 25, 2025, 10:50 PM

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Here is the same history that I had problems with before, but with all other entities toggled off

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Add one device, which lets me get a tooltip for a different area

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Do you think the problem is that when there is no value for a position, it's grabbing the wrong nearby entry to populate the tooltip?

ancient sierra Mar 25, 2025, 10:51 PM

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probably yeah

limber obsidian Mar 25, 2025, 10:52 PM

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Maybe visually the line is correct, I just cannot tell due to the extreme differences in values

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I tried zooming in on a section that excludes the time it was on

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Well actually I tried zooming to just the part where I used it half power but I missed, and this is probably even better

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Here it just will not say a value, which may not be a bug

ancient sierra Mar 25, 2025, 10:54 PM

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😂 https://github.com/home-assistant/frontend/pull/24658

limber obsidian Mar 25, 2025, 10:55 PM

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well!

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I really tried googling it but not knowing the underlying cause made it hard to phrase a query

ancient sierra Mar 25, 2025, 10:56 PM

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understandable.

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Sorry I doubted you 😛

limber obsidian Mar 25, 2025, 10:56 PM

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well it sounds like I did describe it wrong initially 😅

ancient sierra Mar 25, 2025, 10:57 PM

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Anyway it'll be fixed in 2025.4 next week.

limber obsidian Mar 25, 2025, 10:57 PM

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and I guess it's normal for the chart to skip positions with no value updates

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Thanks 🙂

#History graph card shows a previous value forever rather than update, when metering plug is off