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On Thu, 07 Sep 2006 16:55:02 -0400, Lewis G Rosenthal wrote:Actually, the reason IBM warns of degraded performance is that both 802.11b/g and Bluetooth share the 2.4GHz frequency band and may cause interference for each other, not that there is some resource conflict which may arise internal to the system.
On 09/07/06 04:42 pm, Carl Gehr thus wrote :
Copy of post to eCS Hardware NG
This has been a very strange sequence of events:
* This system is over 4 years old. I've never used nor seen the
Bluetooth light on.
* Just by chance, I happened to notice the Bluetooth light 'on'
indicating power has been applied to the adapter. The only system
change was the application of the LVM, Dani and mouse driver updates
a week or so ago. Nothing that should have connected to the
Bluetooth adapter.
* I could find no way to manually turn the adapter off. Not even by
using the BIOS update at boot time. Rebooting did nothing to help.
* Then, my system hung up with what appeared to be a HD loop. I had
to power the system off to get it freed up.
* When the system came back, after doing all the normal CHKDSK scans
on the HD, the Bluetooth was now off. A couple of reboots and it
is still off.
Two questions, please:
1) What might have caused the Bluetooth to activate/power on?
2) Is there some way to force the Bluetooth off?
Carl, please refresh my memory: what notebook do you have?
ThinkPad: A30p
Just one additional piece of [maybe trivia] about this:
When I was originally investigating purchase of this system, there was
a comment that, because the Ethernet, 802.11b and Bluetooth [BT] share
some hardware resources, using multiple 'adapters' at the same time
might cause degraded performance. I've never intentionally tried
multiples, other than I'd like to have some automatic way to switch
between wired and wireless. It just occurred to me that possibly one
reason the system seemed to hang, might have been due to some conflict
between the WiFi and the BT that was 'accidently' (?) activated. Pure
speculation, but that's what we do when we haven't a clue... Right?
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