Estou usando o laptop Dell Inspiron 15 5570. Eu tenho o Windows 10 e Ubuntu 14.04 LTS (dual OS). A opção habilitar wifi não está listada ao clicar no ícone Wifi. No Windows 10, o Wifi está funcionando bem.
Controlador de rede: Dispositivo Qualcomm Atheros [168c: 0042] (rev 31).
Resultado do comando dmesg | grep ath :
[ 19.878601] ath10k_pci 0000:03:00.0: enabling device (0000 -> 0002)
[ 19.879412] ath10k_pci 0000:03:00.0: pci irq msi-x interrupts 8 irq_mode 0 reset_mode 0
[ 20.122393] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/cal-pci-0000:03:00.0.bin failed with error -2
[ 20.122400] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware-5.bin failed with error -2
[ 20.122402] ath10k_pci 0000:03:00.0: could not fetch firmware file 'ath10k/QCA9377/hw1.0/firmware-5.bin': -2
[ 20.122405] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware-4.bin failed with error -2
[ 20.122406] ath10k_pci 0000:03:00.0: could not fetch firmware file 'ath10k/QCA9377/hw1.0/firmware-4.bin': -2
[ 20.122409] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware-3.bin failed with error -2
[ 20.122410] ath10k_pci 0000:03:00.0: could not fetch firmware file 'ath10k/QCA9377/hw1.0/firmware-3.bin': -2
[ 20.122413] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware-2.bin failed with error -2
[ 20.122414] ath10k_pci 0000:03:00.0: could not fetch firmware file 'ath10k/QCA9377/hw1.0/firmware-2.bin': -2
[ 20.122417] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware.bin failed with error -2
[ 20.122418] ath10k_pci 0000:03:00.0: could not fetch firmware (-2)
[ 20.122419] ath10k_pci 0000:03:00.0: could not fetch firmware files (-2)
[ 20.122420] ath10k_pci 0000:03:00.0: could not probe fw (-2)
[ 35.594654] audit: type=1400 audit(1516343943.478:16): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/telepathy/mission-control-5" pid=927 comm="apparmor_parser"
[ 35.594657] audit: type=1400 audit(1516343943.478:17): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/telepathy/telepathy-*" pid=927 comm="apparmor_parser"
Resultado do comando sudo dpkg -s linux-firmware | grep Version :
Version: 1.127.24
Alguma ajuda?
Você precisa de um firmware muito mais novo! Com uma conexão de internet ativa, abra um terminal e faça:
cd /tmp
sudo wget http://security.ubuntu.com/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.169.1_all.deb
sudo dpkg -i linux*.deb
Reinicie e seu wireless deve estar funcionando.