Depois de vários minutos (não sei quantos) não há conexão com a internet no meu laptop via Wi-Fi. O Ubuntu não mostra nenhum tipo de mensagem de que meu Wi-Fi foi desconectado nem há uma queda de sinal, mas de repente Firefox pára de se conectar a páginas da web.Eu verifiquei o meu modem / roteador e parece que ele está funcionando bem.Eu tentei também para reiniciar o dispositivo WiFi e nada acontece.A única coisa que faz com que ele funcione novamente é uma reinicialização do sistema e Se eu não quiser fazer uma reinicialização, então eu sou obrigado a se conectar à Internet usando o cabo Ethernet. Alguém sabe o que está acontecendo?
## Some Hardware info that might be helpful ##
el10780@ThinkPad-W520:~$ sudo lshw -class network
*-network
description: Ethernet interface
product: 82579LM Gigabit Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eth0
version: 04
serial: f0:de:f1:f1:be:10
size: 100Mbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=1.5.1-k duplex=full firmware=0.13-3 ip=192.168.0.10 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
resources: irq:50 memory:f3a00000-f3a1ffff memory:f3a2b000-f3a2bfff ioport:6080(size=32)
*-network
description: Wireless interface
product: Centrino Advanced-N + WiMAX 6250
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 5e
serial: 64:80:99:63:14:74
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-26-generic firmware=41.28.5.1 build 33926 ip=192.168.0.6 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:52 memory:f3900000-f3901fff
*-network
description: Ethernet interface
physical id: 1
bus info: usb@2:1.3
logical name: wmx0
serial: 00:1d:e1:53:b2:e8
capabilities: ethernet physical
configuration: driver=i2400m firmware=i6050-fw-usb-1.5.sbcf link=no
el10780@ThinkPad-W520:~$ lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:16.3 Serial controller: Intel Corporation 6 Series/C200 Series Chipset Family KT Controller (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4)
00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [Quadro 1000M] (rev a1)
03:00.0 Network controller: Intel Corporation Centrino Advanced-N + WiMAX 6250 (rev 5e)
0d:00.0 System peripheral: Ricoh Co Ltd Device e823 (rev 08)
0d:00.3 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 PCIe IEEE 1394 Controller (rev 04)
0e:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)
el10780@ThinkPad-W520:~$ rfkill list all
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
3: i2400m-usb:2-1.3:1.0: WiMAX
Soft blocked: yes
Hard blocked: no
A coisa mais estranha é essa imagem que tirei depois de executar o programa **Additional Drivers** . Quero dizer que tenho uma NVidia Quadro 1000M e minha placa Intel Centrino WiFi e isso mostra que não há drivers proprietários para o meu sistema.
Parece que isso acontece depois de um tempo para economizar energia.
Eu tentei esta solução, mas ainda estou esperando para saber se isso vai resolver o problema ...
echo "#!/bin/sh
/sbin/iwconfig eth1 power off" | sudo tee /etc/pm/power.d/wireless
Note que esse é um comando e é inspirado no post aqui: link