Post by pinneriteI have a pair of Audiocore AC705 v5.0 Bluetooth Headphones.
They pair effortlessly with my Android cellphone but I get
no joy from the Mint 21.3 Bluetooth manager.
My motherboard ASUS_PRIME_X670 is Wi-fi enabled.
Is there a prayer I don't know about?
TIA
According to previous records, you discussed this one.
From the manual, I get this, but the trick with the Asus people,
is they slap whatever module they have in stock in, so it could
be a Broadcom, a MediaTek, an Intel (less likely). Maybe Mediatek
has the best price right now, as that's what i got in my pig.
Thus, I cannot guess the branding on yours with any certainty.
PRIME X670-P WIFI
Wi-Fi 6
2x2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Supports 2.4/5GHz frequency band
Bluetooth v5.2 <=== Please connect shark fin antenna and test
Some of these things, include combo-antenna behavior.
One of the two antenna wires, the BT couples
into the dual-band antenna connection and the BT
transmits at 2.4GHz same as the 2.4GHz Wifi would.
BT uses spread spectrum frequency hopping, and if a
bucket is compromised by "noise" then another bucket is used
later in the spreading sequence. The frequency hops
fairly rapidly, like 1200 times a second. It might
use 85 channels of 1MHz width each, and each 1MHz thing
is a bucket (in the same way a modem or ADSL has the
buckets for transmitting a bit of info in each bucket).
When the main MAC has the BT in it, the two MAC blocks
can coordinate, so both don't try to transmit in the same
nanosecond. Not all modules work that way -- some have
a separate BT chip which is just coupled in.
Check your "lsusb" and "lspci" for names. While traditionally,
USB was a good place for Wifi, the datarates on modern modules,
they might use a x1 PCIe lane instead. The choices for
connection might be USB2 or PCIe x1, and not USB3 which is
a clumsy thing with too many pins to connect. USB2 is likely
too slow for Wifi 6, so the module might be PCIe x1 and
show up in "lspci".
*******
If a peripheral refuses to work, if instead you have two
BT equipped computers, you can "scan" and pick up the
presence of the second computer as a named thing. For
example here, Gregore and Wallace can see each other.
As an example of a profile you can use between two
computers, you can use Send File ("fsquirt") and send a
small file between them. The machines will request to be
paired, before the transmission can work. And that's a
quick way of verifying the plumbing sorta works, before
fighting with any other equipment that refuses to show up.
Your Bluetooth headphones, may use magical audio tones
to indicate "searching", "pairing" and so on. Check the
documentation, to see if the pairing is "0000" or so.
Some won't require the numbers. The other value of the
tones, is verifying the battery has some charge left (200mAh).
On your android, un-pair the headphones before trying
to get the PC to pick up. Some much older devices decide
to "keep three pairings" and reject any future attempt
to pair, and this is a bug in the firmware in the thing.
This is unlikely to happen on newer kit.
Summary: I would guess that connecting the Shark Fin antenna
is the missing step. The threads on those cross-thread
easily, and it can take several tried to screw it on
true instead of on an angle.
Do not set the motherboard antenna on top of a hard drive.
The people making the wifi antennas, they use
neodymium magnets in the base, to secure the
antenna to the PC casing, and the magnet is pretty strong.
The magnet is not a toy.
Paul