On this system, it seems that reboot could fix it temporarily. And it always not working with cold boot. This could be probably an issue with Bluetooth under USB 3.0 hub ubuntu@201401-14508:~$ lsusb -t /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/10p, 480M |__ Port 2: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M |__ Port 2: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M |__ Port 4: Dev 3, If 0, Class=Video, Driver=uvcvideo, 480M |__ Port 4: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M |__ Port 9: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 10: Dev 5, If 0, Class=Wireless, Driver=, 12M |__ Port 10: Dev 5, If 1, Class=Wireless, Driver=, 12M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
However, running sudo apt-get dist-upgrade (3.16.0-39.53) could solve this, I will mark this as Fix-released. ** Changed in: linux-lts-utopic (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1478769 Title: [Dell Inspiron 3048] Atheros Bluetooth [0fc3:e005] does not work with 14.04.2 stock image To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-utopic/+bug/1478769/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs