Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.10 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10-rc8 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1663971 Title: Qualcomm Atheros QCA6174 802.11ac - drops out for a few seconds frequently Status in linux package in Ubuntu: Incomplete Bug description: Presumably this is because of firmware? [ 104.489195] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/cal-pci-0000:02:00.0.bin failed with error -2 [ 104.490292] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/QCA6174/hw3.0/firmware-5.bin failed with error -2 [ 104.490297] ath10k_pci 0000:02:00.0: could not fetch firmware file 'ath10k/QCA6174/hw3.0/firmware-5.bin': -2 ------------------------------------------------------------------------ Machine: Dell XPS 15 (9560) - released 2017 January Install: disk completely erased Ubuntu 16.04.1 installed over wireless with: - download updates while installing ubuntu - install third-party hardware - full disk crypto+luks Note 1: Installation process did not realize there exists a GTX 1050 so we are solely using Intel integrated graphics. Note 2: Installation done not on Dell TB16 Dock to isolate wireless problems alone first. First Boot: update/upgrade/dist-upgrade'd after first boot and rebooted ------------------------------------------------------------------------ If there is additional information we can provide please let us know! ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-62-generic 4.4.0-62.83 ProcVersionSignature: Ubuntu 4.4.0-62.83-generic 4.4.40 Uname: Linux 4.4.0-62-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: leee 1760 F.... pulseaudio CurrentDesktop: Unity Date: Sun Feb 12 02:44:22 2017 HibernationDevice: RESUME=UUID=54594d9c-c63b-4990-8336-2d68892236a7 InstallationDate: Installed on 2017-02-12 (0 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 04f3:24a1 Elan Microelectronics Corp. Bus 001 Device 002: ID 0cf3:e301 Atheros Communications, Inc. Bus 001 Device 004: ID 0c45:6713 Microdia Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. XPS 15 9560 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-62-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-62-generic N/A linux-backports-modules-4.4.0-62-generic N/A linux-firmware 1.157.8 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/09/2017 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.0.3 dmi.board.name: 05FFDN dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.0.3:bd01/09/2017:svnDellInc.:pnXPS159560:pvr:rvnDellInc.:rn05FFDN:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.name: XPS 15 9560 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1663971/+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
