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  1. Bug #720949
  2. Comment #5

Comment 5 for bug 720949

Revision history for this message
Herton R. Krzesinski (herton) wrote : Re: Dell Wireless 1702 dual wifi/bluetooth: bluetooth not detected

I think this is related to ath3k, not ath9k btcoex.

The bluetooth device should be this from attached lsusb:
Bus 002 Device 005: ID 0cf3:3002 Atheros Communications, Inc.

Which is currently handled by ath3k module.

But on provided CurrentDmesg we have this error:
[ 33.195005] ath3k_load_firmware: Can't change to loading configuration err
[ 33.195073] ath3k: probe of 2-1.5:1.0 failed with error -5

For some reason it was unable to load the firmware into the device, and so bluetooth fails.

I found a bug report opened upstream that looks like the same problem (https://bugzilla.kernel.org/show_bug.cgi?id=27402), which suggests that this is currently fixed with latest Linus tree. I found it suspicious, but there were changes to bluetooth subsystem post 2.6.38-rc6 which may have fixed it.

When rc7 comes out or next natty kernel is available (already rebased to commit cited at upstream bug), is good to test again, otherwise we have another problem here.