Eu tenho um Lenovo V110 rodando no Ubuntu 16.04
O WIFI estava funcionando perfeitamente até alguns dias atrás. De repente, um WIFI específico que costumava trabalhar antes parou de funcionar. Outros Wifi funcionam bem no meu laptop e esse wifi em particular funciona em outros laptops, mas não no meu laptpo.
Depois de muita depuração, deparei-me com essa pergunta então eu segui esses comandos para conseguir isso -
Comando
lspci -nnk | grep -iA2 net; dmesg | grep ath10k
Saída
02:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0042] (rev 30)
Subsystem: Lenovo Device [17aa:4035]
Kernel driver in use: ath10k_pci
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
Subsystem: Lenovo RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [17aa:3841]
Kernel driver in use: r8169
Kernel modules: r8169
[ 12.056523] ath10k_pci 0000:02:00.0: pci irq msi interrupts 1 irq_mode 0 reset_mode 0
[ 13.066565] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/cal-pci-0000:02:00.0.bin failed with error -2
[ 15.031654] ath10k_pci 0000:02:00.0: qca9377 hw1.0 (0x05020000, 0x003820ff sub 17aa:4035) fw WLAN.TF.1.0-00267-1 fwapi 5 bdapi 2 htt-ver 3.1 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1 features ignore-otp
[ 15.031657] ath10k_pci 0000:02:00.0: debug 0 debugfs 1 tracing 1 dfs 0 testmode 0
[ 15.263541] ath10k_pci 0000:02:00.0 wlp2s0: renamed from wlan0
O rastreamento de pilha acima tem essa linha de erro -
Direct firmware load for ath10k/cal-pci-0000:02:00.0.bin failed with error -2
Outras informações úteis -
Comando
uname -r
Saída
4.4.0-57-generic
Comando
sudo lshw -C network
Saída
*-network DISABLED
description: Wireless interface
product: Qualcomm Atheros
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlp2s0
version: 30
serial: cc:b0:da:a6:8c:0d
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath10k_pci driverversion=4.4.0-57-generic firmware=WLAN.TF.1.0-00267-1 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
resources: irq:280 memory:d1000000-d11fffff
*-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: 15
serial: 54:ee:75:ab:02:4a
size: 100Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix 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=full firmware=rtl8168h-2_0.0.2 02/26/15 ip=192.168.20.128 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:277 ioport:d000(size=256) memory:d1204000-d1204fff memory:d1200000-d1203fff
Comando
rfkill list all
Saída
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Comando
ifdown wlp2s0
Saída
Unknown interface wlp2s0
Comando
sudo vim /etc/network/interfaces
Saída
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
Algumas outras coisas que notei quando conectado a esse Wifi específico que não está funcionando são -
routes . Qualquer ajuda seria apreciada.
EDITAR Ainda enfrenta esses problemas com alguns outros Wi-Fi também. Ainda não foi encontrada solução.