Description of problem:
On my Dell E4310 laptop after upgrading to Mageia 2, it says "No Bluetooth adapters have been found" in the Bluetooth module of KDE system settings and also in BlueDevil. In the Hardware section of MCC though, the Bluetooth module is detected. The bluetooth interface also appears in rfkill:

rfkill list
0: dell-wifi: Wireless LAN
        Soft blocked: no
        Hard blocked: no
1: dell-bluetooth: Bluetooth
        Soft blocked: no
        Hard blocked: no
3: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
4: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no

Also, here's some output from dmesg:

dmesg | grep -i blue
[    9.188299] usb 2-1.7: Product: DW375 Bluetooth Module
[   15.398597] Bluetooth: Core ver 2.16
[   15.398619] Bluetooth: HCI device and connection manager initialized
[   15.398622] Bluetooth: HCI socket layer initialized
[   15.398624] Bluetooth: L2CAP socket layer initialized
[   15.398628] Bluetooth: SCO socket layer initialized
[ 2270.697625] usb 2-1.7: Product: DW375 Bluetooth Module

Bluetooth worked fine in Mageia 1 before the upgrade.

How reproducible:
Every boot

Steps to Reproduce:
1. Boot computer
2. 
3.