I'm going to try 3.19.0-16 to see. I have an Intel video card, I don't think this is the cause of the issue because I saw my login manager once with your kernel. The log reports continuous connect / disconnect from a usb device. I think this continuous connection/disconnection makes the whole stuff unstable.
Might this modification make the adapter unstable? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1397885 Title: [Atheros AR9462] Bluetooth looks activated but cannot be used Status in bluez package in Ubuntu: Confirmed Bug description: Ubuntu 14.10 System Information Manufacturer: Acer Product Name: Aspire VN7-591G Version: V1.08 SKU Number: Aspire VN7-591G_091B_1.08 Family: Sharkbay System lspci 07:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01) lsusb -v Bus 003 Device 006: ID 04ca:300d Lite-On Technology Corp. Steps to reproduce: 1. Activate a Bluetooth device (for instance a mouse or a nearby device) 2. On the laptop, press the Bluetooth icon, then "Set Up new Device…" Expected result: 2. A list of available bluetooth devices is shown Actual result: 2. Nothing shows up and the spinning icon keeps spinning with "Searching for devices..." It looks like the bluetooth device does not work at all. Apparently, there have been previous bugs reported and corrected [1], but the situation still occurs with this module on my laptop... [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1024884 ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: bluez 4.101-0ubuntu20 ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7 Uname: Linux 3.16.0-25-generic x86_64 ApportVersion: 2.14.7-0ubuntu8 Architecture: amd64 CurrentDesktop: Unity Date: Mon Dec 1 16:35:17 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-11-15 (15 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) InterestingModules: bnep rfcomm btusb bluetooth MachineType: Acer Aspire VN7-591G ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-25-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 SourcePackage: bluez UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/12/2014 dmi.bios.vendor: Insyde Corp. dmi.bios.version: V1.08 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire VN7-591G dmi.board.vendor: Acer dmi.board.version: V1.08 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Chassis Manufacturer dmi.chassis.version: V1.08 dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.08:bd09/12/2014:svnAcer:pnAspireVN7-591G:pvrV1.08:rvnAcer:rnAspireVN7-591G:rvrV1.08:cvnChassisManufacturer:ct10:cvrV1.08: dmi.product.name: Aspire VN7-591G dmi.product.version: V1.08 dmi.sys.vendor: Acer hciconfig: hci0: Type: BR/EDR Bus: USB BD Address: 5C:93:A2:EB:FF:43 ACL MTU: 1022:8 SCO MTU: 183:5 UP RUNNING PSCAN ISCAN RX bytes:2751 acl:0 sco:0 events:351 errors:0 TX bytes:3779 acl:0 sco:0 commands:306 errors:0 syslog: Dec 1 16:21:16 Miles bluetoothd[631]: Discovery session 0x7fa5da51da30 with :1.228 activated Dec 1 16:27:43 Miles bluetoothd[631]: Discovery session 0x7fa5da530a50 with :1.230 activated To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1397885/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp