Bonjour,
Un petit souci qui m'arrive souvent au démarrage : l'applet Wi-Fi montre un point d'interrogation alors que dans hardinfo, l'interface wlp2s0 est bien connectée (elle a une IP locale, une passerelle, etc). Il me faut alors plusieurs essais de déconnexion, désactivation, redémarrage, mode avion, etc pour tenter de récupérer la connexion.
Evidemment, quand l'applet Wi-Fi montre son point d'interrogation au lieu du logo habituel, je n'ai pas de connexion au réseau. Et d'autres périphériques sur le même réseau fonctionnent bien.
Auriez-vous une idée pour résoudre ce souci ? Merci d'avance
cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04.1 LTS"
lsusb
Bus 001 Device 004: ID 04f2:b52b Chicony Electronics Co., Ltd
Bus 001 Device 005: ID 04ca:3010 Lite-On Technology Corp.
Bus 001 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1576
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 1577
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 98e4 (rev d9)
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 15b3
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 157b
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 157c
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 157c
00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 157c
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 157b
00:08.0 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 1578
00:09.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 157d
00:09.2 Audio device: Advanced Micro Devices, Inc. [AMD] Device 157a
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 20)
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 4b)
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 49)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 4b)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15b0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15b1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15b2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15b3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15b4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15b5
01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Sun LE [Radeon HD 8550M / R5 M230] (rev ff)
02:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
lspci -k -nn | grep -A 3 -i net
02:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01)
Subsystem: Lite-On Communications Inc QCA9565 / AR9565 Wireless Network Adapter [11ad:0662]
Kernel driver in use: ath9k
Kernel modules: ath9k
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10)
Subsystem: ASUSTeK Computer Inc. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1043:200f]
Kernel driver in use: r8169
Kernel modules: r8169
sudo lshw -C network
*-network
description: Interface réseau sans fil
produit: QCA9565 / AR9565 Wireless Network Adapter
fabriquant: Qualcomm Atheros
identifiant matériel: 0
information bus: pci@0000:02:00.0
nom logique: wlp2s0
version: 01
numéro de série: e8:2a:44:35:54:6a
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=4.15.0-30-generic firmware=N/A ip=10.0.10.8 latency=0 link=yes multicast=yes wireless=IEEE 802.11
ressources: irq:35 mémoire:fe900000-fe97ffff mémoire:fe980000-fe98ffff
*-network
description: Ethernet interface
produit: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:03:00.0
nom logique: enp3s0
version: 10
numéro de série: 2c:fd:a1:75:ce:f1
taille: 10Mbit/s
capacité: 1Gbit/s
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress msix vpd 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=half firmware=rtl8168g-3_0.0.1 04/23/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
ressources: irq:29 portE/S:d000(taille=256) mémoire:fe804000-fe804fff mémoire:fe800000-fe803fff
*-network:0
description: Ethernet interface
identifiant matériel: 1
nom logique: virbr0
numéro de série: 52:54:00:33:62:0d
fonctionnalités: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A ip=192.168.122.1 link=no multicast=yes
*-network:1 DÉSACTIVÉ
description: Ethernet interface
identifiant matériel: 2
nom logique: virbr0-nic
numéro de série: 52:54:00:33:62:0d
taille: 10Mbit/s
fonctionnalités: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=tun driverversion=1.6 duplex=full link=no multicast=yes port=twisted pair speed=10Mbit/s
iwconfig
enp3s0 no wireless extensions.
virbr0 no wireless extensions.
virbr0-nic no wireless extensions.
lo no wireless extensions.
wlp2s0 IEEE 802.11 ESSID:"ALBIZIA"
Mode:Managed Frequency:2.437 GHz Access Point: E8:65:D4:E1:39:09
Bit Rate=120 Mb/s Tx-Power=16 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=70/70 Signal level=-26 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:41 Missed beacon:0
ifconfig -a
ether 2c:fd:a1:75:ce:f1 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Boucle locale)
RX packets 563 bytes 52430 (52.4 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 563 bytes 52430 (52.4 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:33:62:0d txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0-nic: flags=4098<BROADCAST,MULTICAST> mtu 1500
ether 52:54:00:33:62:0d txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.10.8 netmask 255.255.255.0 broadcast 10.0.10.255
inet6 fe80::90ee:ecb:16d4:8ae9 prefixlen 64 scopeid 0x20<link>
ether e8:2a:44:35:54:6a txqueuelen 1000 (Ethernet)
RX packets 7065 bytes 5024864 (5.0 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 4836 bytes 1234605 (1.2 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
uname -r -m
4.15.0-30-generic x86_64