Wifi não funciona no Aspire ES 15 com o Debian

Boa tarde a todos.

Eu instalei o Debian 32 bits, a última versão, no notebook Aspire ES 15. Na instalação o Wifi não funcionou, então eu usei um cabo de rede. Após ter instalado o Wifi não funcionou.
Eu já dei uma olhada nos fóruns, porém não consegui resolver.
Eu sou usuário iniciante no Linux.
Se alguém conseguir ajudar-me ficarei agradecido.

Posta aqui a saída desses comandos:
$ sudo iwconfig
$ sudo ifconfig
$ lspci | grep -i wireless

Verifique se tu habilitou o Wifi pelo teclado, às vezes é a tecla FN e mais alguma tecla F um número.


_________________________________________________________
Always listen the Buck!
Enquanto o cursor estiver pulsando, há vida!

Desculpe a demora

ip a:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host noprefixroute
valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 1c:39:47:60:e1:41 brd ff:ff:ff:ff:ff:ff
inet 10.0.0.139/24 brd 10.0.0.255 scope global dynamic noprefixroute enp1s0
valid_lft 85165sec preferred_lft 85165sec
inet6 2804:128:98aa:f100:e9d0:c63:bdc3:285c/64 scope global temporary dynamic
valid_lft 86350sec preferred_lft 14350sec
inet6 2804:128:98aa:f100:1e39:47ff:fe60:e141/64 scope global dynamic mngtmpaddr noprefixroute
valid_lft 86350sec preferred_lft 14350sec
inet6 fe80::1e39:47ff:fe60:e141/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: wlp2s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether e2:f7:30:14:81:d9 brd ff:ff:ff:ff:ff:ff permaddr 5c:c9:d3:89:0b:81

lspci | grep -i wireless :
02:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)

Um detalhe. O Wifi reconhece as redes. Mas quando eu coloco a senha, fica pedindo de novo como um loop.

Confira se os drivers estão instalados (provavelmente estão):
$ sudo lspci -knn | grep -A2 Wireless

Deverá ter no final da saída duas linhas assim:
Kernel driver in use: xxxxxx_pci <<< aqui aparecerá o driver da tua placa no lugar de xxxxx
Kernel modules: xxxxxx_pci <<< aqui o módulo da tua placa
Caso aparecer algo diferente significa que faltam os drivers, deverá instalá-los, mas não é teu caso, acredito.

Nessa linha que apareceu antes com o comando ip a:
3: wlp2s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether e2:f7:30:14:81:d9 brd ff:ff:ff:ff:ff:ff permaddr 5c:c9:d3:89:0b:81

repare que NO-CARRIER (sem portadora-operadora) significa que o link está administrativamente ativo, mas não está associado e autenticado com um SSID, o que é óbvio; e "state DOWN" significa que o link não está ativo (deveria estar UP e sem NO-CARRIER).

Execute na sequência:
$ /sbin/iw wlp2s0 link
deverá aparecer Not connected.

Vamos dar um UP na Wireless:

$ sudo ip link set wlp2s0 up
Deverá aparecer nada na saída, daí tente conectar, caso aparecer algo como
RTNETLINK answers: Operation not possible due to RF-kill

Execute:
$ sudo rfkill unblock all
$ sudo ip link set wlp2s0 up

e tente conectar numa rede.

Caso no comando acima "sudo ip link set wlp2s0 up" aparecer algo diferente do que postei, coloque aqui a saída.

Verifique o status:
$ /sbin/iw wlp2s0 link

Caso ainda não conectar, escaneie:
$ sudo /sbin/iw wlp2s0 scan
e poste aqui toda a saída.


_________________________________________________________
Always listen the Buck!
Enquanto o cursor estiver pulsando, há vida!

Boa tarde.

Este comando funcionou: sudo ip link set wlp2s0 up.

Mas mesmo assim não conectou.

ip a:

3: wlp2s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether c6:87:af:1f:89:67 brd ff:ff:ff:ff:ff:ff permaddr 5c:c9:d3:89:0b:81

sudo /sbin/iw wlp2s0 scan:

BSS 18:0d:2c:e3:53:c2(on wlp2s0)
TSF: 765663148111 usec (8d, 20:41:03)
freq: 2427
beacon interval: 100 TUs
capability: ESS Privacy ShortSlotTime (0x0411)
signal: -39.00 dBm
last seen: 0 ms ago
Information elements from Probe Response frame:
SSID: Jose_WIFI
Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
DS Parameter set: channel 4
ERP: <no flags>
Extended supported rates: 24.0 36.0 48.0 54.0
HT capabilities:
Capabilities: 0x19ec
HT20
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 32767 bytes (exponent: 0x002)
Minimum RX AMPDU time spacing: 16 usec (0x07)
HT RX MCS rate indexes supported: 0-15
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 4
* secondary channel offset: no secondary
* STA channel width: 20 MHz
* RIFS: 0
* HT protection: non-HT mixed
* non-GF present: 0
* OBSS non-GF present: 1
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
WPA: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
* Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
WMM: * Parameter version 1
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: 11223344-5566-7788-99aa-180d2ce353c6
* Manufacturer: Realtek Semiconductor Corp.
* Model: RTL8xxx
* Model Number: EV-2010-09-20
* Serial Number: 123456789012347
* Primary Device Type: 6-0050f204-1
* Device name: Realtek Wireless AP
* Config methods: Display, Keypad
* RF Bands: 0x3
* Version2: 2.0
Extended capabilities:
BSS 90:fd:73:aa:a6:f7(on wlp2s0)
TSF: 2173315789208 usec (25d, 03:41:55)
freq: 2432
beacon interval: 100 TUs
capability: ESS Privacy ShortPreamble ShortSlotTime APSD RadioMeasure (0x1c31)
signal: -95.00 dBm
last seen: 8804 ms ago
SSID: Souza
Supported rates: 1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0
DS Parameter set: channel 5
Extended supported rates: 6.0 12.0 24.0 48.0
Country: TH Environment: Indoor/Outdoor
Channels [1 - 13] @ 27 dBm
TPC report: TX power: 19 dBm
RM enabled capabilities:
Capabilities: 0xf3 0xc0 0x01 0x00 0x00
Link Measurement
Neighbor Report
Beacon Passive Measurement
Beacon Active Measurement
Beacon Table Measurement
Beacon Measurement Reporting Conditions
Transmit Stream/Category Measurement
Triggered Transmit Stream/Category
AP Channel Report
Nonoperating Channel Max Measurement Duration: 0
Measurement Pilot Capability: 0
TIM: DTIM Count 0 DTIM Period 1 Bitmap Control 0x0 Bitmap[0] 0x0
WPA: * Version: 1
* Group cipher: TKIP
* Pairwise ciphers: TKIP CCMP
* Authentication suites: PSK
RSN: * Version: 1
* Group cipher: TKIP
* Pairwise ciphers: TKIP CCMP
* Authentication suites: PSK
* Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* UUID: bc329e00-1dd8-11b2-8601-90fd73aaa6f7
* RF Bands: 0x1
* Version2: 2.0
ERP: <no flags>
HT capabilities:
Capabilities: 0x11ee
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT RX MCS rate indexes supported: 0-15, 32
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 5
* secondary channel offset: below
* STA channel width: any
* RIFS: 0
* HT protection: non-HT mixed
* non-GF present: 1
* OBSS non-GF present: 0
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
Overlapping BSS scan params:
* passive dwell: 20 TUs
* active dwell: 10 TUs
* channel width trigger scan interval: 300 s
* scan passive total per channel: 200 TUs
* scan active total per channel: 20 TUs
* BSS width channel transition delay factor: 5
* OBSS Scan Activity Threshold: 0.25 %
Extended capabilities:
* HT Information Exchange Supported
* BSS Transition
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
BSS Load:
* station count: 2
* channel utilisation: 0/255
* available admission capacity: 31250 [*32us]

Você identificou o problema?

Execute:
$ sudo rfkill unblock all
$ sudo systemctl restart NetworkManager
$ sudo ip link set wlp2s0 up

e tente conectar numa rede.
Caso não der, mude o canal da rede wi-fi para 1 ou 11 e tente conectar.


_________________________________________________________
Always listen the Buck!
Enquanto o cursor estiver pulsando, há vida!

Já fiz isso.

Como muda o canal?

Procure o ícone da rede sem fio (depende se você usa Gnome, Kde, Xfce, etc).
No Xfce tem um ícone acima à direita, você clica nele e vê ali as configurações.
Quando é a rede cabeada tem um ícone que parece um picolé, quando está no wi-fi tem aquele ícone com as barrinhas.
Clica em cima com o botão direito > Editar conexões ou Configurações, daí você procura ali.


_________________________________________________________
Always listen the Buck!
Enquanto o cursor estiver pulsando, há vida!