Not able to dim lights on google nest hub

[neleig]

Everything is working fine in the google home app on my phone, all my lights are dimmable from the app.
But my google nest hub shows all my lights as on/off and no level control.

I don't actually know if this is a HAMH issue or an issue with the google nest hub.
Log does not show any errors, but attached is the startup debug log of a bridge with only one of my lights.
491eb00d_hamh_2024-12-06T21-29-46.267Z.log

[neleig]

As soon as I submitted this issue the level control of the light suddenly started to work on my nest hub.
Assuming something had magically solved itself, I started another bridge with all my lights.
None of the lights had working level control, also not the one that worked previously.
Swithing back to the single light bridge also did not work anymore.

Seeing that it briefly worked for some reason I'm also starting to think it might be something in my network.
But all other functions are working just fine, except for the level control from the nest hub.

[t0bst4r]

I assume that to be an issue with google nest.
When you pair it with the google home app, the controls are there. Therefore i don't see any problem on HAMH side.
Additionally the logs show the correct initialization of levelControl cluster.

Did you try pairing the same bridge with both google home app and google nest hub?

[neleig]

Thanks for the quick answer.
My google nest hub is added in the google home app. And after that i've only paired the bridge with the google home app.
Maybe i'm missing something, but I don't think there is an option to pair the bridge directly to the google nest hub.

[marcbernis]

Hello,
First thanks for this wonderful idea and software!
I've probably similar issue, lights (single or group) are correctly added in Google home and I can dim them from there without issue.
But Google assistant (french) always says that there is no dimmable light added to Google home while changing colors works fine

[Moonbase59]

Quick note: I have a DimmableLight "Wohnzimmer Stehlampe" which worked a few versions before (can't remember which) using

• Alexa App
• Alexa Echo Dot (5th Gen) "Computer, Stehlampe auf 50%" ("Computer, Stehlampe to 50%")
• Google Home App
• Google Nest Mini (2nd Gen) "Hey Google, Stehlampe auf 50%"

Using 3.0.0-alpha.54, and watching both apps and HA, I now get the following:

• Alexa App – works, can dim
• Alexa Echo Dot – works, but brightness change not reflected in GH App
• Google Home App – works, light is dimmable
• Google Nest Mini – "Hey Google, Stehlampe auf 50%" results in "Entschuldige, das habe ich nicht verstanden" ("Sorry, I didn't understand that")
• Google Nest Mini – "Hey Google, Stehlampe aus" (switch off) results in light being switched off, which Alexa and HA also see.

Looks like Google Nest devices cannot dim a HAMH DimmableLight in this version.

[marcbernis]

I'm using Nest mini and so we have the same experience. Google home ok, on nest lights (tried multiple vendors) are not dimmable Le lun. 9 déc. 2024, 20:29, Matthias C. Hormann ***@***.***> a écrit :

…

Quick note: I have a DimmableLight "Wohnzimmer Stehlampe" which worked a few versions before (can't remember which) using - Alexa App - Alexa Echo Dot (5th Gen) "Computer, Stehlampe auf 50%" ("Computer, Stehlampe to 50%") - Google Home App - Google Nest Mini (2nd Gen) "Hey Google, Stehlampe auf 50%" Using 3.0.0-alpha.54, and watching both apps and HA, I now get the following: - Alexa App – works, can dim - Alexa Echo Dot – works, but brightness change not reflected in GH App - Google Home App – works, light is dimmable - Google Nest Mini – "Hey Google, Stehlampe auf 50%" results in "Entschuldige, das habe ich nicht verstanden" ("Sorry, I didn't understand that") - Google Nest Mini – "Hey Google, Stehlampe aus" (switch off) results in light being switched off, which Alexa and HA also see. Looks like Google Nest devices cannot dim a DimmableLight in this version. — Reply to this email directly, view it on GitHub <#268 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ANAXMNYCFIIL4N74VGACOXL2EXVSDAVCNFSM6AAAAABTFSEVT2VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDKMRZGE4TMMRTHE> . You are receiving this because you commented.Message ID: ***@***.***>

[Apollon77]

A debug log of such a try to dim would be cool - also potentially in commparism where is works and where not

[neleig]

I don't think I will be able to create a debug log of a dim attemp that fails. The google nest hub just does not send the command because the light has no dim capability, only on/off. On the google nest hub it's easy to see right after initialization, because the UI will only show on/off for the light, or it will show the current dim level.
But, as indicated in my previous post, I've also seen that it once worked as intended. So I tried to catch that situation in a debug log.

In the attached log I've tried the following (multiple times, with different bridges):

• Add a bridge with one light to the google home app
• Verify in the google home app that the light is dimmable
• Check on the google nest hub if the light is dimmable
• If not, remove the bridge from the google home app and start over again.

In most of my attemps it failed and I could not control the dim level of the light from the google nest hub (google home app always works).

Around 22:35 I decided to reboot the google nest hub, and after that is suddenly worked. The google nest hub showed the dim level of the light, and I was able to control the dim level from the google nest hub (dim actions should be visible in the log file).
Around 22:45 I added a second light to the bridge, and after that both lights were not dimmable anymore. Again I tried to reboot the google nest hub, but this time it did not work.

491eb00d_hamh_2024-12-09T22-50-55.761Z.log

I don't know if it is possible to easily install an older version of the addon in Home Assistant. I don't have any old backups since i'm using a fresh installation. Else it should be easy for me to test with older versions and provide the debug logs.

[marcbernis]

hello again,
Just capture a single line with device addon (a philips dimmable bulb):

[ 2024-12-10T11:31:03.654Z ] [ INFO ] [ Matter / Endpoint ]: 93540fa34d994683a2f6e1b6ba7fd156.aggregator.light_chevet_de_la_chambre ready endpoint#: 15 type: ColorTemperatureLight (0x10c) behaviors: ✓identify ✓groups ✓onOff ✓levelControl ✓colorControl ✓bridgedDeviceBasicInformation ✓homeAssistantEntity ✓descriptor

It works pefectly on google home.
Dimm from Google home log:
93540fa34d994683a2f6e1b6ba7fd156.aggregator.light_chevet_de_la_chambre.levelControl.moveToLevelWithOnOff online#f2b70d4@39ea25f1 level: 157 transitionTime: null optionsMask: { executeIfOff: false, coupleColorTempToLevel: false } optionsOverride: { executeIfOff: false, coupleColorTempToLevel: false }

While French assistant from google nest mini says " there is no dimmable light in your config, add a new one from google home".
No log on ha matter hub

Strange is that color control works fine from assitant (and home).

Color change from Google Nest mini log:
93540fa34d994683a2f6e1b6ba7fd156.aggregator.light_chevet_de_la_chambre.colorControl.moveToColorTemperature online#f2b70e6@39ea25f1 colorTemperatureMireds: 333 transitionTime: 5 optionsMask: { executeIfOff: true } optionsOverride: { executeIfOff: true }

All features except dimm works fine from Google Assistant.
All features are okay from google home including dimm.

It is like if a property was missing or maybe language property. Does somebody check is English assistant has same behavour?

[Moonbase59]

Here's a one-minute debug log from v3.0.0-alpha.54, for issuing the following commands (both Alexa Echo Dot and Google Nest Mini connected to the same HAMH bridge):

• "Computer, Wohnzimmer Stehlampe aus" (Alexa, works)
• "Computer, Wohnzimmer Stehlampe auf 50%" (Alexa, works)
• "Hey Google, Wohnzimmer Stehlampe aus" (Google, works)
• "Hey Google, Wohnzimmer Stehlampe auf 50%" (Google, claims it doesn't understand, no visible log entry)*
• "Hey Google, Wohnzimmer Stehlampe an" (Google, works)

* = I also tried other sentences as shown in Google Help, like "Stelle Helligkeit meiner Wohnzimmer Stehlampe auf 50% ein"—none worked. Also, my Nest Mini is bilingual (German + English UK), and English commands also don't dim the lights.

"Wohnzimmer Stehlampe" is an ExtendedColorLight (WLED). I also tried using a DimmableLight "Büro Stehlampe" (Espurna Dimmer), and it shows the same behaviour.

I wonder if this is a sudden Google Home/Assist issue, or maybe caused because some device tries to set a float (127.5) for brightness? EDIT: Seems not so, the 127.5 came from Google Home App when setting 50%, and is not seen in the attached log.

Btw, setting the brightness using the GH App works, just not when using the Nest Mini, or other Google Assist on Android or WearOS 4.

491eb00d_hamh_2024-12-11T17-27-12.995Z.log

P.S.: More testing: Commands like "Hey Google, Wohnzimmer Stehlampe auf Rot" (set to red) work, as @marcbernis already noticed.

[vwccvr6]

I had the same problem. After saying "hey google, sync my devices" (and waiting several minutes) i am able to dimm all lights via voice command.
I don't know if the "sync my device" was the actual fix.

Maybe someone can try.

EDIT: was just working for like an hour, now again the response :"sorry, i cant't found dimmable lights, you can set them up in google Assistant"

[Apollon77]

Honestly ... thats then a pure google issue and has maybe even nothing to do with Matter ... so if "just" the voice assistant" do not understand you/does not find stuff it is on that side ... seems that all matter related things work

[Moonbase59]

@Apollon77: That may be so—don't know how these thingies update, so maybe some unnoticed Google bug. What nags me a little is that exactly the same command worked a few HAMH versions before.

Any suggestion for a non-Google, non-Alexa, non-HomeKit, easy-to-use Matter controller for Linux we could use to test? (Possibly without having to install dev environments like npm or the like?)

[gklank]

Honestly ... thats then a pure google issue and has maybe even nothing to do with Matter ... so if "just" the voice assistant" do not understand you/does not find stuff it is on that side ... seems that all matter related things work

Hi,

in first hand it looks like that what you are saying is correct.

But in the other hand: with using the nabu casa cloud to GH and with the same stuff as now used in the HA-matterhub the voice assistant is working.
Also in the GH app these devices are shown as dimmable and can used in that way.

So therefore I am assuming that there is still a bit difference within the HA-matterhub which is not totally understood by GH.

Regards

Gerhard

[gklank]

sorry, just hours later, nothing done, nothing changed - it's now functioning.
Just told to GH via voice to change my light to 25% - it was functioning.

Fine - but why?

Regards

Gerhard

[Apollon77]

maybe Google fixed the issue in they Firmware/Cloud system?

[kennylevinsen]

Yeah, seems like it. I also had this quirk appear after I had returned from a trip without anything having changed. Controls worked in the Google Home app (spoken or manual), while smart speakers failed any dimming. Removing the lights, syncing, re-adding them and syncing was what it took to fix it.

With that in mind this can probably be closed as "not our bug".