USB BT dongle freezes machine
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Medium
|
Unassigned |
Bug Description
new BT dongle is very flaky. If it will pair, whenever it is used to send any data, it freezes the machine (flashing caps lock and num lock leds). The only way to get it back is to press and hold the power button. I have 2 other dongles which work fine. It announces itself as a "ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)" like the another one I have. I have been able to make it work under Win7 x64.
usb-devices reports more information:
T: Bus=04 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#= 9 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=0a12 ProdID=0001 Rev=19.15
C: #Ifs= 2 Cfg#= 1 Atr=c0 MxPwr=0mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
The key is the Rev 19.15. This one does not work I have another one which reports Rev 01.34 and it works fine.
I have seen this showing up around the web. The compatibility lists all list Cambridge Silicon Radio, Ltd 0a12:0001, but not all of these devices that report this are the same, or so it appears. Don't know if it just because it is a BT 2.0 and it is incorrectly assigned a driver.
This is on Ubuntu 11.10 x64
This is with gnome-bluetooth or Bluetooth-manager
I got a freeze, I expected a connection and a file transfer
The chip in the adapter is marked OVC3620. Do not know if this is helpful or not.