@teitlebot I am using Home Assistant as well but Grafana is not used as an add-in on Hassio. I have it on a separate docker container. However I gave up Grafana in the end. It was to much problems. Now I use MQTT to get all information I want from Home Assistant to my Mirror. Like this:

http://www.planet4.se/magic-mirror-info-via-mqtt/

I did it with Node Red and Home Assistant. A little bit overkill but it works.
http://www.planet4.se/alexa-controlling-home-assistant/

I was so happy to get this working so I wanted to share. I am now showing solar production on my mirror. Have posted this in swedish but you can translate this.

http://www.planet4.se/solceller-del-3-grafana-home-assistant-och-magic-mirror/

Basically it is: solarpanels->fronius inverter->api->home assistant->influx->grafana->magic mirror

@SvenSommer Thanks for replying. I was actually able to solve it but with version 6 of Grafana black background is more of a trouble. Wrote a short post about this as well.

http://www.planet4.se/grafana-in-magic-mirror/

I am now able to show my Solar production on my mirror. 0,36kW. Will post this in the show my mirror as well. Thanks.

Thanks for doing all the work. Just upgraded. However I had problems before waking and sleeping the screen and before I was able to change this in the node_helper.js to use:

vcgencmd display_power 1 instead of tvservice. The command works via ssh but when I tried to change like below the screens sleeps but I can not wake it up via the remote.html menu. Anyone with the same problem?

 monitorControl: function(action, opts, res) {
            let status = "unknown";
            let monitorOnCommand = (this.initialized && "monitorOnCommand" in this.thisConfig.customCommand) ?
                this.thisConfig.customCommand.monitorOnCommand :
                "sudo vcgencmd display_power 1";
            let monitorOffCommand = (this.initialized && "monitorOffCommand" in this.thisConfig.customCommand) ?
                this.thisConfig.customCommand.monitorOffCommand :
                "vcgencmd display_power 0";
            let monitorStatusCommand = (this.initialized && "monitorStatusCommand" in this.thisConfig.customCommand) ?
                this.thisConfig.customCommand.monitorStatusCommand :
                "vcgencmd display_power --status";
            if (["MONITORTOGGLE", "MONITORSTATUS", "MONITORON"].indexOf(action) !== -1) {
                screenStatus = exec(monitorStatusCommand, opts, (error, stdout, stderr) => {
            

I have used this one https://www.thingiverse.com/thing:1523416

Just wanted to share how I use Alexa to control the mirror. I use Home Assistant together with Node Red. With the MMM remote module I can restart, hide or do whatever I want. I send the coammand via HTTP get from Node Red.

https://www.youtube.com/watch?v=9szW-2Sy7-4

I was able to solve the login issues but now its just black. Maybe this module does not work with the new version of Grafana?

@SvenSommer Have not used this module for a while but have now reinstalled Grafana and would like to try it again. However I can not remember how to solve the login to Grafana. I think I opened it up as public the last time but is not an option now. At the moment the mirror just shows erroe as it can not login to the Grafana dashboard. Please advise.

I had the same problem but I am using home assistant. I ended up installing MMM remote. And created a switch for on and off parsing theese urls. Maybe that would work for you as well?

command_on: "/usr/bin/curl -X GET http://192.168.0.77:8090/remote?action=MONITORON"
command_off: "/usr/bin/curl -X GET http://192.168.0.77:8090/remote?action=MONITOROFF"