I’m not asking about grafana config file. Have you install telegraf? If yes then just provide me the config file . I think you have made some changes in it .
No sorry. I am only working with grafana and influx db.
Try clicking the button which can be seen just below ‘Add Query’. It will be in the shape of pencil and when you hover it, it says “Toggle Text Edit Mode”. Click on that button and you will have a text field to enter your query. Try giving ‘Select * from <table_name>’ query. Also try changing the format to ‘Table’ in ‘FORMAT AS’ option.
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Sometime the data doesn’t show in Time series change the format as table from your panel view.
This answer helped me in resolving my issue, thanks a lot 
I had the same issue, my problem was the data’s EPOCH time stamp was wrong due to the source host generating the data not set up on NTP properly. Once I fixed that data flooded. I see in the screen shot above that the epoch time stamp looks right for the date it was being posted. Would still check to make sure time is configured properly on source host, influxdb, and grafana.