Miracast/Widi and Bluetooth?

Can someone explain in layman's terms how these are connected both in
software and hardware?
Ongoing trouble with almost new Acer laptop, had given up on Miracast/Widi
ever working right but now discover Bluetooth not working right.
Sony Experia E1 mobile, Archos 101 G9 Turbo tablet and Sony CT60 BT
soundbar, none of them can be connected via BT to laptop. BT and
discoverability switched on and these 3 devices pair with each other easily
but not the laptop. OS and drivers up to date.
This is a replacement laptop from Argos, first one returned because of
problems connecting to TV, this one's the same but only recently realised
there's a BT problem as well.

Kenny Cargill

Kenny wrote:
Can someone explain in layman's terms how these are connected both in
software and hardware?
Ongoing trouble with almost new Acer laptop, had given up on Miracast/Widi
ever working right but now discover Bluetooth not working right.
Sony Experia E1 mobile, Archos 101 G9 Turbo tablet and Sony CT60 BT
soundbar, none of them can be connected via BT to laptop. BT and
discoverability switched on and these 3 devices pair with each other easily
but not the laptop. OS and drivers up to date.
This is a replacement laptop from Argos, first one returned because of
problems connecting to TV, this one's the same but only recently realised
there's a BT problem as well.

Kenny Cargill

For a relationship between Bluetooth and Wifi, see

http://en.wikipedia.org/wiki/Bluetooth

"Bluetooth v3.0 + HS

the Bluetooth link is used for negotiation and establishment,
and the high data rate traffic is carried over a colocated
802.11 link"

That's an example of a Bluetooth standard and implementation,
where Wifi is used during the transport phase. As a means
to surpass the limited (backward compatible) Bluetooth
transmission methods.

*******

Other than that, there should be no coupling at the
subsystem level. They should have been independent behaviors.

Note that, laptops can have a plugin wireless card. On the
card, some cards are "combo" type. They have both Bluetooth
and Wifi on the same card. Perhaps the Wifi uses a patch
antenna right on the PCB, while the Wifi uses coax connectors,
thin coax cables, that reach up into the display panel area.
The antennas for the Wifi can be in the display panel.

From a frequency and modulation method point of view,
these two technologies are designed to co-exist. Even
though both of them might be operating in the 2.4GHz
band (the same band as your microwave oven), the modulation
is different enough, that the Bluetooth can "step around"
any RF blurb thrown in its path. Bluetooth uses frequency
hopping, and changes the broadcast frequency 1200 times
per second.

So now that we have our "combo" card, the driver package
may have two drivers in the same EXE.

And after that, the coupling should be at an end.
While they're "neighbors in a few places",
one should not lead to the disruption of the other.

*******

If this was my computer I would...

1) Install Macrium Reflect Free.
2) Back up C: to an external drive.
3) Do a factory restore of C:.
4) Test for working Wifi and Bluetooth when booted
into the factory fresh C:.
5) If a hardware defect is present, do warranty service.
6) Else, restore C: from backup and try and figure out
what broke.

Presumably the Bluetooth ENUM and pairing information,
is stored in the registry somewhere...

HTH,
Paul

On Thu, 14 May 2015 12:44:28 +0100, "Kenny" wrote:

Can someone explain in layman's terms how these are connected both in
software and hardware?
Ongoing trouble with almost new Acer laptop, had given up on Miracast/Widi
ever working right but now discover Bluetooth not working right.
Sony Experia E1 mobile, Archos 101 G9 Turbo tablet and Sony CT60 BT
soundbar, none of them can be connected via BT to laptop. BT and
discoverability switched on and these 3 devices pair with each other easily
but not the laptop. OS and drivers up to date.
This is a replacement laptop from Argos, first one returned because of
problems connecting to TV, this one's the same but only recently realised
there's a BT problem as well.


There are descriptions of Miracast and WiDi he

http://www.howtogeek.com/177145/wireless-display-standards-explained-airplay-miracast-widi-chromecast-and-dlna/

I don't see any direct connection between either of them and Bluetooth,
BICBW.

Kenny wrote:
Can someone explain in layman's terms how these are connected both in
software and hardware?
Ongoing trouble with almost new Acer laptop, had given up on Miracast/Widi
ever working right but now discover Bluetooth not working right.
Sony Experia E1 mobile, Archos 101 G9 Turbo tablet and Sony CT60 BT
soundbar, none of them can be connected via BT to laptop. BT and
discoverability switched on and these 3 devices pair with each other easily
but not the laptop. OS and drivers up to date.
This is a replacement laptop from Argos, first one returned because of
problems connecting to TV, this one's the same but only recently realised
there's a BT problem as well.

Kenny Cargill

I've had very similar problems.
I have no trouble pairing anything (including Apple equipment and
android phones) with my Sandstrom & Denon hifi and Samsung soundbar.
But with Windows? No.

I tried for some time a year or so again and gave up. I decided it was
deliberate policy on the part of the manufacturers. You can only pair BT
with similar profiles; and not all profiles are available on all things.

Oh, and a word of warning. If you google you'll find sites claiming to
provide drivers for the things, but it's a con to get you to download
their driver-scanning programs.

Ed

Ed Cryer wrote:
Kenny wrote:
Can someone explain in layman's terms how these are connected both in
software and hardware?
Ongoing trouble with almost new Acer laptop, had given up on
Miracast/Widi
ever working right but now discover Bluetooth not working right.
Sony Experia E1 mobile, Archos 101 G9 Turbo tablet and Sony CT60 BT
soundbar, none of them can be connected via BT to laptop. BT and
discoverability switched on and these 3 devices pair with each other
easily
but not the laptop. OS and drivers up to date.
This is a replacement laptop from Argos, first one returned because of
problems connecting to TV, this one's the same but only recently realised
there's a BT problem as well.

Kenny Cargill

I've had very similar problems.
I have no trouble pairing anything (including Apple equipment and
android phones) with my Sandstrom & Denon hifi and Samsung soundbar.
But with Windows? No.

I tried for some time a year or so again and gave up. I decided it was
deliberate policy on the part of the manufacturers. You can only pair BT
with similar profiles; and not all profiles are available on all things.

Oh, and a word of warning. If you google you'll find sites claiming to
provide drivers for the things, but it's a con to get you to download
their driver-scanning programs.

Ed

There are different Bluetooth stacks available.

http://en.wikipedia.org/wiki/Blue_Soleil

"A demonstration version of BlueSoleil is available,
restricting the device after 2MB data transfer, approximately
1.5 minutes of high-quality audio or 2-4 hours of mouse use.
The software must be purchased to enable unlimited use."

You would:

1) Back up the hard drive.
2) Install the package.
3) Do pairing tests.
4) Restore from backup to remove absolutely
everything from the trial.

If you want to be sure a software leaves nothing
behind, you backup with "dd" to be absolutely sure.
That's the Ripley "nuke them from orbit" option :-)
That's in case a software with overly aggressive licensing
enforcement, starts writing crap outside the file system.

HTH,
Paul

Thanks for the replies, will contact Acer Support and see what they say.
Although this laptop has Intel hardware it won't let me install Intel
drivers, only customised Acer ones. I had considered format and re-install
using Win 8.1 image from MS to get around this but suspect Acer BIOS would
still cause problems.
Not sure where I stand legally, it has been replaced once already and seems
an inherent problem.

Kenny

"Paul" wrote in message ...

Ed Cryer wrote:
Kenny wrote:
Can someone explain in layman's terms how these are connected both in
software and hardware?
Ongoing trouble with almost new Acer laptop, had given up on
Miracast/Widi
ever working right but now discover Bluetooth not working right.
Sony Experia E1 mobile, Archos 101 G9 Turbo tablet and Sony CT60 BT
soundbar, none of them can be connected via BT to laptop. BT and
discoverability switched on and these 3 devices pair with each other
easily
but not the laptop. OS and drivers up to date.
This is a replacement laptop from Argos, first one returned because of
problems connecting to TV, this one's the same but only recently realised
there's a BT problem as well.

Kenny Cargill

I've had very similar problems.
I have no trouble pairing anything (including Apple equipment and android
phones) with my Sandstrom & Denon hifi and Samsung soundbar.
But with Windows? No.

I tried for some time a year or so again and gave up. I decided it was
deliberate policy on the part of the manufacturers. You can only pair BT
with similar profiles; and not all profiles are available on all things.

Oh, and a word of warning. If you google you'll find sites claiming to
provide drivers for the things, but it's a con to get you to download
their driver-scanning programs.

Ed

There are different Bluetooth stacks available.

http://en.wikipedia.org/wiki/Blue_Soleil

"A demonstration version of BlueSoleil is available,
restricting the device after 2MB data transfer, approximately
1.5 minutes of high-quality audio or 2-4 hours of mouse use.
The software must be purchased to enable unlimited use."

You would:

1) Back up the hard drive.
2) Install the package.
3) Do pairing tests.
4) Restore from backup to remove absolutely
everything from the trial.

If you want to be sure a software leaves nothing
behind, you backup with "dd" to be absolutely sure.
That's the Ripley "nuke them from orbit" option :-)
That's in case a software with overly aggressive licensing
enforcement, starts writing crap outside the file system.

HTH,
Paul

Kenny wrote:
Thanks for the replies, will contact Acer Support and see what they say.
Although this laptop has Intel hardware it won't let me install Intel
drivers, only customised Acer ones. I had considered format and
re-install using Win 8.1 image from MS to get around this but suspect
Acer BIOS would still cause problems.
Not sure where I stand legally, it has been replaced once already and
seems an inherent problem.

Kenny

If you live in a country that has a "not fit for purpose"
law, you can get your money back. We have some consumer
protection laws here, but not that strong a coverage.

If the Wifi/Bluetooth combo is on a plugin module,
you can replace the module with some other brand.
Although with Miracast, who know what would happen
with respect to the workings of that (mostly software).

Paul