I have always had a problem with a 2 bulb light in the kitchen. The bulbs work flawlessly standalone but I push this light hard as a group- I have rules to dim it to 5%, it has color temp capability and there are 2 bulbs in the same fixture which makes it all the more interesting.
For the most part it has worked okay since I moved to newer bulbs.
There was a power fail this weekend while I was away and when I came home one bulb was on. I began to play with it and realized one bulb had smoked. I replaced both bulbs and began going through normal steps like updating the group, the dashboards and rules.
While testing it through Alexa, I would get 'This device doesn't support that' when issuing colortemp change commands.
(Here's the log -
I dug into it and determined the group was at fault. It is an old group from 1-2 years ago.
In the drop down, there were 3 groups to pick from - heres the screen:
All my groups in my system show 'Group 2.1' in the column - regardless of which of the choices I make here. I read the 2019 thread about group 2.1 but I'm still confused as to what should be here. When I recreate the group, it defaults to 'group bulb dimmer 2.1'.
I will state as well, that using 'Group bulb dimmer 2.1' worked (or at least is working atm). But I'm really confused how CCT/Dim lights don't auto-identify or at least the 'group bulb dimmer' doesn't show something like 2.0 or pre-2.1 so as to be a bit clearer then using trial and error...
Whatever it was made with, which if you didn't manually change it, should be what it is--though the errors you're getting suggest there might be a mismatch. I'm not sure they anticipated needing a new "version" of group drivers when the originals were created, so those are the ones without "2.1." If you're really not sure, you could probably match up the Group app version (list view of apps will show you this in the far right column), or you might want to consider recreating the group (and remember not to change the driver afterwards).
thanks @bertabcd1234
One thing I said but not clearly - you didn't address with your comment - Regardless of which of the 3 drivers I select, it shows as '2.1' on the main group list:
Note that Kitchen Sink, Table and test group - all show as Group-2.1, but within they are all 3 different - one each of Group Dimmer, Group Bulb Dimmer and Group Dimmer 2.1...
Which type of group you want devices represented as is chosen when creating the group and the group must be recreated AFAIK if a different type of group is desired. I think this was done mostly for properly representing the group to voice assistants. I believe that they are all 2.1.
That looks like the Apps list, not the Devices list. Changing the driver will not affect the version of the app that was used to create the group, but you shouldn't change the driver on the device from the one that the app chose when it created the group/device, anyway.
Regarding the driver names, not all of the drivers that were created with the Groups app 2.1 have "2.1" at the end of their name. Some types of groups were introduced relatively recently ("Group Switch" and "Group Dimmer," and possibly other variations I can't remember), and thus there were no naming conflicts or backwards compatibility issues to worry about with existing driver names, yet they are correct for new groups. But if you remember the rule not to change group drivers (redo things in the app if you need to make any changes), whatever the app created when you made the group should be correct.
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