Hi, clearly the firmware is crashing in your computer (wonder why). Do you have exactly the same chipset as me (lspci -nnk) ?
02:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0041] (rev 20) Here are my outputs just FYI. I'm not sure why the firmware crashed in your box ("[ 3.584948] ath10k_pci 0000:02:00.0: firmware crashed! (uuid e628e267-4dee-4da1-8a51-ed236bd4fc19)", trying to look for the unsolicited fw crash interrupts). *-network description: Wireless interface product: Qualcomm Atheros vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:02:00.0 logical name: wlp2s0 version: 20 serial: f1:59:19:6f:94:3d width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=ath10k_pci driverversion=4.1.0-1-amd64 firmware=atheros-12.0.0.102-fw ip=10.1.1.4 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn resources: irq:49 memory:e4000000-e41fffff *-network description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:03:00.0 logical name: enp3s0 version: 10 serial: 65:ff:88:4d:ca:71 size: 10Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:43 ioport:4000(size=256) memory:e4204000-e4204fff memory:e4200000-e4203fff 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: enp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000 link/ether 65:ff:88:4d:ca:71 brd ff:ff:ff:ff:ff:ff 3: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 1000 link/ether f1:59:19:6f:94:3d brd ff:ff:ff:ff:ff:ff [ 5.866041] ath10k_pci 0000:02:00.0: pci irq msi-x interrupts 8 irq_mode 0 reset_mode 0 [ 6.056962] ath10k_pci 0000:02:00.0: firmware: failed to load ath10k/cal-pci-0000:02:00.0.bin (-2) [ 6.056963] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/cal-pci-0000:02:00.0.bin failed with error -2 [ 6.057265] ath10k_pci 0000:02:00.0: firmware: failed to load ath10k/QCA6174/hw2.1/board-pci-168c:0041:17aa:3545.bin (-2) [ 6.057266] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/QCA6174/hw2.1/board-pci-168c:0041:17aa:3545.bin failed with error -2 [ 6.057267] ath10k_pci 0000:02:00.0: failed to load spec board file, falling back to generic: -2 [ 6.057426] ath10k_pci 0000:02:00.0: firmware: direct-loading firmware ath10k/QCA6174/hw2.1/board.bin [ 6.059061] ath10k_pci 0000:02:00.0: firmware: direct-loading firmware ath10k/QCA6174/hw2.1/firmware-5.bin [ 7.251278] ath10k_pci 0000:02:00.0: qca6174 hw2.1 (0x05010000, 0x003405ff, 168c:0041:17aa:3545 fallback) fw atheros-12.0.0.102-fw api 5 htt-ver 3.25 wmi-op 4 htt-op 3 cal otp max-sta 32 features [ 7.251282] ath10k_pci 0000:02:00.0: debug 1 debugfs 1 tracing 0 dfs 0 testmode 0 [ 7.329352] ath10k_pci 0000:02:00.0 wlp2s0: renamed from wlan0 [ 9.483580] ath10k_pci 0000:02:00.0: no channel configured; ignoring frame(s)! [ 9.639777] ath10k_pci 0000:02:00.0: no channel configured; ignoring frame(s)! [ 9.743787] ath10k_pci 0000:02:00.0: no channel configured; ignoring frame(s)! [ 9.795954] ath10k_pci 0000:02:00.0: no channel configured; ignoring frame(s)! [ 9.951754] ath10k_pci 0000:02:00.0: no channel configured; ignoring frame(s)! [ 15.621875] ath10k_pci 0000:02:00.0: no channel configured; ignoring frame(s)! [ 25.486894] ath10k_pci 0000:02:00.0: no channel configured; ignoring frame(s)! [ 25.746890] ath10k_pci 0000:02:00.0: no channel configured; ignoring frame(s)! [ 25.950765] ath10k_pci 0000:02:00.0: no channel configured; ignoring frame(s)! [ 29.898613] ath10k_pci 0000:02:00.0 wlp2s0: disabling HT as WMM/QoS is not supported by the AP [ 29.898614] ath10k_pci 0000:02:00.0 wlp2s0: disabling VHT as WMM/QoS is not supported by the AP -- 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/1436940 Title: Atheros wifi 168c:0041(QCA6164) is not supported Status in linux package in Ubuntu: Confirmed Status in linux source package in Vivid: Confirmed Status in linux source package in Wily: Confirmed Bug description: The atheros wireless device (168c:0041) isn't supported by the ath10k_pci kernel driver. Found in several laptop models: Lenovo Z70 Lenovo G50-45 Lenovo G50-80 Lenovo Edge 15 Lenovo Yoga 3 11 Lenovo Flex 3-1470 Samsung ATIV Book 9 NP930X2K ProblemType: BugDistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-9-generic 3.19.0-9.9 ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1 Uname: Linux 3.19.0-9-generic x86_64 ApportVersion: 2.16.2-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: nicholas 1695 F.... pulseaudio /dev/snd/controlC1: nicholas 1695 F.... pulseaudio CurrentDesktop: Unity Date: Thu Mar 26 09:47:16 2015 HibernationDevice: RESUME=UUID=5b068cd8-e60a-49b9-a88e-1581bb6b3dc1 InstallationDate: Installed on 2015-03-25 (1 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) IwConfig: eth0 no wireless extensions. lo no wireless extensions. Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 0cf3:e300 Atheros Communications, Inc. Bus 001 Device 003: ID 5986:0652 Acer, Inc Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 80E5 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-9-generic root=UUID=e52867c5-0b50-42fb-8288-f30765f926c5 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-9-generic N/A linux-backports-modules-3.19.0-9-generic N/A linux-firmware 1.143SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-03-26 (0 days ago) dmi.bios.date: 06/20/2014 dmi.bios.vendor: LENOVO dmi.bios.version: B0CN69WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: Lenovo G50-80 dmi.board.vendor: LENOVO dmi.board.version: 31900058 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo G50-80 dmi.modalias: dmi:bvnLENOVO:bvrB0CN69WW:bd06/20/2014:svnLENOVO:pn80E5:pvrLenovoG50-80:rvnLENOVO:rnLenovoG50-80:rvr31900058WIN:cvnLENOVO:ct10:cvrLenovoG50-80: dmi.product.name: 80E5 dmi.product.version: Lenovo G50-80 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1436940/+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