Folks,

I'm struggling to get my new laptop with a BT5.0 module (Intel) to talk to a Nordic custom device. I have set up custom services and characteristics on the Nordic. Using Qt and laptops with Bluetooth 4.0 and 4.2 modules work very nicely. However, a new laptop with the BT5.0 module will not communicate well at all.

I have written a Qt program to scan and connect to LE devices which isn't working properly, so I am trying to use bluetoothctl to see whether the issue might lay with Qt and not Bluez. However, although I can connect to my Noric device I can't work out how to have it list available services and from those services any characteristics.

I have seen one site say use list-attributes, but I am told in main menu this is an invalid command.

BTW, hcitool does not work any more. I have a laptop running Mageia 6 that will work with hcitool lescan, but with Mageia 7 and a more up to date Bluez it will not.


Is it the case that Bluetooth 5.0 simply doesn't work with Linux? If it does work, how do I use bluetoothctl to find the Nordic device, connect to it, then list its services and characteristics please? If I can do that I can maybe confirm it's either a Bluez issue or a Qt issue.

An Android phone with a BT5 module will talk to tmy Nordic device.

Many thanks.

Sorry, I don't understand what you are saying. What official site? You had the same problem?

That post is probably a set-up for the spam post that quoted it...I've reported the latter.

Back to the topic. I don't know the answer, but you seem to be asking the right question...That is, are there issues with Bluetooth 5.0 on Mageia 7?
"Does not work anymore" isn't a useful problem description. Please elaborate.
What happens when you try to run hcitool?

Posting links to junk will get you banned next time you guys. wariswala hukiwani

...

I have, essentially, given up on this for the now. I had to mod the code to see the attributes, but even once I'd done that, the speed was way down compared to 4.2.

I then used a Windows machine with a USB BT5 dongle and it is a fast as the Linux machine with 4.2. As the end custom, bless them, will only use Windows there's not been the effort to find out the issue. I could try the BT5 dongle on my Linux desktop I suppose if we needed to track it down further.

As the moment it maght be Linux, Bluez, Mageia or BT5 or some combination of them all.

I can't remember what the issue was with hcitool any more I'm afraid. Thanks for the suggestions though.