Sou muito novo no mundo linux, então me desculpe se eu não fornecer todas as informações necessárias de uma só vez, eu adquiri recentemente um switch Acer Alpha 12 2 em 1 tablet / pc que funciona excepcionalmente bom com o Ubuntu 16.04 Gnome em dual boot com o Windows 10 (vários ajustes necessários, mas no geral ótimo).
Atualmente, após a instalação do Ubuntu, o adaptador sem fio foi reconhecido sem problemas e eu consegui me conectar à internet (até aí tudo bem), mas precisei me mover um pouquinho do roteador sem fio e descobrir que o sinal wireless foi muito mais fraco do que no Windows 10 também instável. Eu tinha tentado as seguintes correções para tornar a força do sinal e a estabilidade como janelas, mas que não eram bem sucedidas até agora.
Eu tentei as seguintes correções: Instalar backports 4.4.2-1 faça sem problemas faça a instalação com o seguinte problema:
INSTALL /home/northrom/Downloads/backports-4.4.2-1/compat/compat.ko
At main.c:222:
- SSL error:02001002:system library:fopen:No such file or directory: bss_file.c:175
- SSL error:2006D080:BIO routines:BIO_new_file:no such file: bss_file.c:178
sign-file: certs/signing_key.pem: No such file or directory
INSTALL /home/northrom/Downloads/backports-4.4.2-1/drivers/net/wireless/ath/ath.ko
At main.c:222:
- SSL error:02001002:system library:fopen:No such file or directory: bss_file.c:175
- SSL error:2006D080:BIO routines:BIO_new_file:no such file: bss_file.c:178
sign-file: certs/signing_key.pem: No such file or directory
INSTALL /home/northrom/Downloads/backports-4.4.2-1/drivers/net/wireless/ath/ath10k/ath10k_core.ko
At main.c:222:
- SSL error:02001002:system library:fopen:No such file or directory: bss_file.c:175
- SSL error:2006D080:BIO routines:BIO_new_file:no such file: bss_file.c:178
sign-file: certs/signing_key.pem: No such file or directory
INSTALL /home/northrom/Downloads/backports-4.4.2-1/drivers/net/wireless/ath/ath10k/ath10k_pci.ko
At main.c:222:
- SSL error:02001002:system library:fopen:No such file or directory: bss_file.c:175
- SSL error:2006D080:BIO routines:BIO_new_file:no such file: bss_file.c:178
sign-file: certs/signing_key.pem: No such file or directory
Também tentei substituir o firmware usando as seguintes diretrizes: link Usou os passos descritos no comentário # 22 sem sucesso
Além dessas 2 correções eu tentei usar o ndiswrapper também sem sucesso.
Algumas informações que tenho visto são necessárias nos fóruns para obter ajuda, da seguinte forma:
lspci -v output
Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32)
Subsystem: Lite-On Communications Inc QCA6174 802.11ac Wireless Network Adapter
Flags: bus master, fast devsel, latency 0, IRQ 280
Memory at b1400000 (64-bit, non-prefetchable) [size=2M]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable+ Count=8/8 Maskable+ 64bit-
Capabilities: [70] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [148] Virtual Channel
Capabilities: [168] Device Serial Number 00-00-00-00-00-00-00-00
Capabilities: [178] Latency Tolerance Reporting
Capabilities: [180] L1 PM Substates
Kernel driver in use: ath10k_pci
Kernel modules: ndiswrapper
lsmod | grep ath10
ath10k_pci 45056 0
ath10k_core 311296 1 ath10k_pci
ath 32768 1 ath10k_core
mac80211 737280 1 ath10k_core
cfg80211 565248 3 ath,mac80211,ath10k_core
Iwconfig
wlp1s0 IEEE 802.11abgn ESSID:"XXX-XXX"
Mode:Managed Frequency:2.462 GHz Access Point: F4:F2:6D:79:3F:95
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=70/70 Signal level=-37 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:140 Missed beacon:0
uname -r
4.4.0-47-generic
dmesg | grep ath
[ 2.359552] audit: type=1400 audit(1478977538.920:9): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/telepathy/mission-control-5" pid=618 comm="apparmor_parser"
[ 2.359569] audit: type=1400 audit(1478977538.920:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/telepathy/telepathy-*" pid=618 comm="apparmor_parser"
[ 146.086338] ath10k_pci 0000:01:00.0: pci irq msi-x interrupts 8 irq_mode 0 reset_mode 0
[ 146.328737] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/cal-pci-0000:01:00.0.bin failed with error -2
[ 146.329161] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/QCA6174/hw3.0/firmware-5.bin failed with error -2
[ 146.329172] ath10k_pci 0000:01:00.0: could not fetch firmware file 'ath10k/QCA6174/hw3.0/firmware-5.bin': -2
[ 146.393873] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/QCA6174/hw3.0/board-2.bin failed with error -2
[ 148.512002] ath10k_pci 0000:01:00.0: qca6174 hw3.2 (0x05030000, 0x00340aff sub 11ad:0807) fw WLAN.RM.2.0-00180-QCARMSWPZ-1 fwapi 4 bdapi 1 htt-ver 3.26 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1 features wowlan,ignore-otp,no-4addr-pad
[ 148.512006] ath10k_pci 0000:01:00.0: debug 0 debugfs 1 tracing 1 dfs 0 testmode 0
[ 148.578668] ath: EEPROM regdomain: 0x6c
[ 148.578671] ath: EEPROM indicates we should expect a direct regpair map
[ 148.578673] ath: Country alpha2 being used: 00
[ 148.578674] ath: Regpair used: 0x6c
[ 148.587387] ath10k_pci 0000:01:00.0 wlp1s0: renamed from wlan0
[ 1273.526810] ath10k_pci 0000:01:00.0: pci irq msi-x interrupts 8 irq_mode 0 reset_mode 0
[ 1273.763382] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/cal-pci-0000:01:00.0.bin failed with error -2
[ 1273.763419] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/QCA6174/hw3.0/firmware-5.bin failed with error -2
[ 1273.763428] ath10k_pci 0000:01:00.0: could not fetch firmware file 'ath10k/QCA6174/hw3.0/firmware-5.bin': -2
[ 1273.826169] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/QCA6174/hw3.0/board-2.bin failed with error -2
[ 1275.944371] ath10k_pci 0000:01:00.0: qca6174 hw3.2 (0x05030000, 0x00340aff sub 11ad:0807) fw WLAN.RM.2.0-00180-QCARMSWPZ-1 fwapi 4 bdapi 1 htt-ver 3.26 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1 features wowlan,ignore-otp,no-4addr-pad
[ 1275.944375] ath10k_pci 0000:01:00.0: debug 0 debugfs 1 tracing 1 dfs 0 testmode 0
[ 1276.012253] ath: EEPROM regdomain: 0x6c
[ 1276.012260] ath: EEPROM indicates we should expect a direct regpair map
[ 1276.012265] ath: Country alpha2 being used: 00
[ 1276.012268] ath: Regpair used: 0x6c
[ 1276.020002] ath10k_pci 0000:01:00.0 wlp1s0: renamed from wlan0
Até agora, o adaptador sem fio tem funcionado desde que eu instalei o Ubuntu 16.04, mas com força e estabilidade muito fraca.
também à medida que a força do sinal cai, a taxa de transferência de dados também o faz de 12MB / s para 1MB / s ou menos, no Windows funciona como a 25MB / s que é outro problema que tenho visto na rede local.
Eu realmente aprecio se alguma ajuda puder ser fornecida. Obrigado
O gerenciamento de energia que está sendo ativado pode estar causando parte do problema e você deve ser capaz de desativá-lo com
sudo sed -i 's/wifi.powersave = 3/wifi.powersave = 2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf