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#1 Le 20/07/2025, à 19:57
- LaLuciole
[Contourné] Perte de connexion Wifi
Bonjour, j'ai installé Ubuntu 25.04 sur mon PC portable, tout marche bien excepté le wifi qui se deconnecte à chaque session, aléatoirement (entre 10 minutes et 2 heures), plus de connexion possible, je retrouve le réseau en redémarrant.
Ayant une carte wifi Realtek RTL8821CE, j'ai pensé avoir un problème de driver, je l'ai installé manuellement comme indiqué ici https://doc.ubuntu-fr.org/wifi_liste_carte#realtek et là https://forums.linuxmint.com/viewtopic. … e#p1723234, sans résultat.
Voici les resultats de wifichek :
>> lsb_release -a
Distributor ID: Ubuntu
Description: Ubuntu 25.04
Release: 25.04
Codename: plucky
>> lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0bda:b00e Realtek Semiconductor Corp. Bluetooth Radio
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 18f8:1286 [Maxxter] USB GAMING MOUSE
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 002: ID 30c9:00c7 Luxvisions Innotech Limited HP True Vision HD Camera
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
>> lspci -k -nn | grep -A 3 -i net
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821]
DeviceName: WLAN
Subsystem: Hewlett-Packard Company Device [103c:884d]
Kernel driver in use: rtw_8821ce
>> sudo lshw -C network
*-network
description: Interface réseau sans fil
produit: RTL8821CE 802.11ac PCIe Wireless Network Adapter
fabricant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:02:00.0
nom logique: wlo1
version: 00
numéro de série: 58:02:05:3e:e5:3d
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration : broadcast=yes driver=rtw_8821ce driverversion=6.14.0-24-generic firmware=N/A ip=192.168.0.42 latency=0 link=yes multicast=yes wireless=IEEE 802.11
ressources : irq:80 portE/S:2000(taille=256) mémoire:c0500000-c050ffff
>> lsmod | sort
8821ce 2502656 0
ac97_bus 12288 1 snd_soc_core
acpi_tad 20480 0
aesni_intel 122880 8
af_alg 32768 6 algif_hash,algif_skcipher
algif_hash 16384 1
algif_skcipher 16384 1
amd_atl 73728 1
amdgpu 19763200 13
amd_pmc 49152 0
amdxcp 12288 1 amdgpu
autofs4 57344 2
binfmt_misc 24576 1
bluetooth 1015808 34 btrtl,btmtk,btintel,btbcm,bnep,btusb,rfcomm
bnep 32768 2
btbcm 24576 1 btusb
btintel 69632 1 btusb
btmtk 36864 1 btusb
btrtl 36864 1 btusb
btusb 73728 0
ccm 20480 6
ccp 159744 1 kvm_amd
cec 94208 2 drm_display_helper,amdgpu
cfg80211 1437696 3 rtw88_core,mac80211,8821ce
cmac 12288 3
cryptd 24576 3 crypto_simd,ghash_clmulni_intel
crypto_simd 16384 1 aesni_intel
dmi_sysfs 24576 0
drm_buddy 24576 1 amdgpu
drm_display_helper 282624 1 amdgpu
drm_exec 12288 1 amdgpu
drm_panel_backlight_quirks 12288 1 amdgpu
drm_suballoc_helper 16384 1 amdgpu
drm_ttm_helper 16384 1 amdgpu
edac_mce_amd 28672 0
efi_pstore 12288 0
ghash_clmulni_intel 16384 0
gpu_sched 61440 1 amdgpu
hid 266240 4 i2c_hid,usbhid,hid_multitouch,hid_generic
hid_generic 12288 0
hid_multitouch 36864 0
hp_wmi 36864 0
i2c_algo_bit 20480 1 amdgpu
i2c_hid 40960 1 i2c_hid_acpi
i2c_hid_acpi 12288 0
i2c_piix4 36864 0
i2c_smbus 20480 1 i2c_piix4
input_leds 12288 0
intel_rapl_common 53248 1 intel_rapl_msr
intel_rapl_msr 20480 0
ip_tables 36864 0
irqbypass 12288 1 kvm
joydev 32768 0
k10temp 16384 0
kvm 1429504 1 kvm_amd
kvm_amd 245760 0
libarc4 12288 1 mac80211
lp 28672 0
mac80211 1818624 2 rtw88_pci,rtw88_core
mac_hid 12288 0
mc 86016 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
Module Size Used by
msr 12288 0
nfnetlink 20480 1
nls_iso8859_1 12288 1
nvme 61440 3
nvme_auth 28672 1 nvme_core
nvme_core 229376 4 nvme
parport 73728 3 parport_pc,lp,ppdev
parport_pc 53248 0
platform_profile 20480 1 hp_wmi
polyval_clmulni 12288 0
polyval_generic 12288 1 polyval_clmulni
ppdev 24576 0
qrtr 53248 2
rapl 20480 0
rc_core 73728 1 cec
rfcomm 102400 6
rtw88_8821c 98304 1 rtw88_8821ce
rtw88_8821ce 12288 0
rtw88_core 368640 2 rtw88_pci,rtw88_8821c
rtw88_pci 36864 1 rtw88_8821ce
sch_fq_codel 24576 1
serio_raw 20480 0
sha1_ssse3 32768 0
sha256_ssse3 32768 1
snd 143360 21 snd_ctl_led,snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_sof,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi
snd_acp6x_pdm_dma 12288 0
snd_acp_config 24576 10 snd_rn_pci_acp3x,snd_sof_amd_acp70,snd_pci_acp6x,snd_pci_acp5x,snd_sof_amd_rembrandt,snd_sof_amd_vangogh,snd_sof_amd_acp63,snd_acp_pci,snd_pci_ps,snd_sof_amd_renoir
snd_acp_legacy_common 16384 1 snd_acp_pci
snd_acp_pci 12288 0
snd_amd_sdw_acpi 16384 2 snd_sof_amd_acp,snd_pci_ps
snd_compress 36864 1 snd_soc_core
snd_ctl_led 24576 0
snd_hda_codec 204800 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_codec_generic 122880 1 snd_hda_codec_realtek
snd_hda_codec_hdmi 98304 1
snd_hda_codec_realtek 212992 1
snd_hda_core 147456 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hda_intel 65536 2
snd_hda_scodec_component 20480 1 snd_hda_codec_realtek
snd_hrtimer 12288 1
snd_hwdep 20480 1 snd_hda_codec
snd_intel_dspcfg 45056 2 snd_hda_intel,snd_sof
snd_intel_sdw_acpi 16384 1 snd_intel_dspcfg
snd_pci_acp3x 16384 0
snd_pci_acp5x 16384 0
snd_pci_acp6x 16384 0
snd_pci_ps 24576 0
snd_pcm 196608 14 snd_sof_amd_acp,snd_hda_codec_hdmi,snd_pci_acp6x,snd_hda_intel,snd_hda_codec,snd_sof,snd_acp6x_pdm_dma,snd_compress,snd_soc_core,snd_sof_utils,soundwire_amd,snd_hda_core,snd_pci_ps,snd_pcm_dmaengine
snd_pcm_dmaengine 16384 1 snd_soc_core
snd_rawmidi 57344 1 snd_seq_midi
snd_rn_pci_acp3x 16384 0
snd_rpl_pci_acp6x 16384 0
snd_seq 122880 9 snd_seq_midi,snd_seq_midi_event,snd_seq_dummy
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
snd_seq_dummy 12288 0
snd_seq_midi 24576 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_soc_acp6x_mach 36864 0
snd_soc_acpi 16384 3 snd_sof_amd_acp,snd_acp_config,snd_pci_ps
snd_soc_acpi_amd_match 8192 2 snd_sof_amd_acp63,snd_pci_ps
snd_soc_core 434176 5 snd_soc_acp6x_mach,snd_sof,snd_acp6x_pdm_dma,soundwire_amd,snd_soc_dmic
snd_soc_dmic 12288 0
snd_soc_sdca 12288 1 soundwire_bus
snd_sof 401408 2 snd_sof_amd_acp,snd_sof_pci
snd_sof_amd_acp63 16384 0
snd_sof_amd_acp 65536 5 snd_sof_amd_acp70,snd_sof_amd_rembrandt,snd_sof_amd_vangogh,snd_sof_amd_acp63,snd_sof_amd_renoir
snd_sof_amd_acp70 16384 0
snd_sof_amd_rembrandt 16384 0
snd_sof_amd_renoir 16384 0
snd_sof_amd_vangogh 16384 0
snd_sof_pci 24576 5 snd_sof_amd_acp70,snd_sof_amd_rembrandt,snd_sof_amd_vangogh,snd_sof_amd_acp63,snd_sof_amd_renoir
snd_sof_utils 16384 1 snd_sof
snd_sof_xtensa_dsp 12288 1 snd_sof_amd_acp
snd_timer 53248 3 snd_seq,snd_hrtimer,snd_pcm
soundcore 16384 2 snd_ctl_led,snd
soundwire_amd 45056 2 snd_sof_amd_acp,snd_pci_ps
soundwire_bus 126976 2 soundwire_generic_allocation,soundwire_amd
soundwire_generic_allocation 24576 1 soundwire_amd
sparse_keymap 12288 1 hp_wmi
spd5118 12288 0
ttm 118784 2 amdgpu,drm_ttm_helper
usbhid 77824 0
uvc 12288 1 uvcvideo
uvcvideo 147456 0
video 77824 1 amdgpu
videobuf2_common 90112 4 videobuf2_vmalloc,videobuf2_v4l2,uvcvideo,videobuf2_memops
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_v4l2 36864 1 uvcvideo
videobuf2_vmalloc 20480 1 uvcvideo
videodev 364544 2 videobuf2_v4l2,uvcvideo
wmi 28672 3 hp_wmi,video,wmi_bmof
wmi_bmof 12288 0
x_tables 65536 1 ip_tables
>> bootctl>> iwconfig
>> 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: wlo1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 58:02:05:3e:e5:3d brd ff:ff:ff:ff:ff:ff
altname wlp2s0
altname wlx5802053ee53d
inet 192.168.0.42/24 brd 192.168.0.255 scope global dynamic noprefixroute wlo1
valid_lft 43064sec preferred_lft 43064sec
inet6 2a01:e0a:86d:93c0:9433:9e56:4cc6:80ed/64 scope global temporary dynamic
valid_lft 86266sec preferred_lft 85996sec
inet6 2a01:e0a:86d:93c0:29e8:b44f:4433:3425/64 scope global dynamic mngtmpaddr noprefixroute
valid_lft 86266sec preferred_lft 86266sec
inet6 fe80::229c:7875:4854:7e7e/64 scope link noprefixroute
valid_lft forever preferred_lft forever
>> sudo iwlist scan
>> uname -r -m
6.14.0-24-generic x86_64
>> cat /etc/network/interfaces
>> nm-tool
>> nmcli dev wifi
IN-USE BSSID SSID MODE CHAN RATE SIGNAL BARS SECURITY
34:27:92:E0:8A:40 fred Infra 13 260 Mbit/s 100 ▂▄▆█ WPA2
* 34:27:92:E0:8A:44 fred Infra 64 540 Mbit/s 100 ▂▄▆█ WPA2
3A:07:16:86:15:46 fbx-6HEBLCL452CAXGCAVGJZCBBCXZY Mesh 6 270 Mbit/s 64 ▂▄▆_ WPA3
3A:07:16:20:BC:42 fbx-6HEBLCL452CAXGCAVGJZCBBCXZY Mesh 6 270 Mbit/s 57 ▂▄▆_ WPA3
3A:07:16:86:15:44 Freebox-22A861 Infra 6 130 Mbit/s 57 ▂▄▆_ WPA2
3A:07:16:20:BC:40 Freebox-22A861 Infra 6 130 Mbit/s 57 ▂▄▆_ WPA2
3A:07:16:85:F3:C2 fbx-VPXYE6I6GBD4FDPHNVWXXHOLQAS Mesh 11 270 Mbit/s 50 ▂▄__ WPA3
3A:07:16:86:15:40 Freebox-22A861 Infra 44 270 Mbit/s 39 ▂▄__ WPA2
3A:07:16:86:15:42 fbx-H5ARC52HWT2H657EBANN7VTW7AM Mesh 44 270 Mbit/s 39 ▂▄__ WPA3
18:DF:26:04:52:60 André Infra 1 130 Mbit/s 37 ▂▄__ WPA2
3A:07:16:49:37:50 Freebox-CAEC92 Infra 11 130 Mbit/s 37 ▂▄__ WPA2
3A:07:16:85:F3:C6 fbx-GABOBAUVQQBJLMLVWNIRS5ZS6AQ Mesh 40 270 Mbit/s 37 ▂▄__ WPA3
3A:07:16:85:F3:C4 Freebox-CAEC92 Infra 40 270 Mbit/s 37 ▂▄__ WPA2
3A:07:16:85:F3:C0 Freebox-CAEC92 Infra 11 130 Mbit/s 30 ▂___ WPA2
3A:07:16:20:BC:44 Freebox-22A861 Infra 44 270 Mbit/s 29 ▂___ WPA2
D0:57:94:0A:0D:D0 Bbox-554A5035 Infra 1 130 Mbit/s 24 ▂___ WPA1 WPA2
62:B5:3C:35:F7:05 Bbox-3780AA2F Infra 1 195 Mbit/s 17 ▂___ WPA2
>> nmcli connection list (< 15.04) ou nmcli connection show (>= 15.04)
NAME UUID TYPE DEVICE
fred 01b6fd68-9618-4c88-9b3a-f25c458176f0 wifi wlo1
lo 1ec0400f-8894-4d1d-8b73-ed52dddb16c1 loopback lo
>> sudo rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: noD'avance merci pour l'aide...
Dernière modification par LaLuciole (Le 21/07/2025, à 19:33)
Hors ligne
#2 Le 21/07/2025, à 19:33
- LaLuciole
Re : [Contourné] Perte de connexion Wifi
J'ai contourné le problème en échangeant de carte wifi avec mon ancien PC...
Hors ligne
#3 Le 21/07/2025, à 19:44
- xubu1957
Re : [Contourné] Perte de connexion Wifi
Bonjour,
Montre le nouveau :
lspci -nnk | grep 0280 -A3Conseils pour les nouveaux demandeurs et pas qu'eux
Important : Pensez à passer vos sujets en [Réso|u] lorsque ceux-ci le sont, au début du titre en cliquant sur Modifier sous le premier message, et un bref récapitulatif de la solution à la fin de celui-ci. Merci. Membre de Linux-Azur
En ligne
#4 Le 22/07/2025, à 13:04
- LaLuciole
Re : [Contourné] Perte de connexion Wifi
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter [10ec:b822]
DeviceName: WLAN
Subsystem: Hewlett-Packard Company Realtek RTL8822BE 802.11ac 2x2 Wi-Fi + Bluetooth 4.2 Combo Adapter (MU-MIMO supported) [103c:831b]
Kernel driver in use: rtw_8822beHors ligne
#5 Le 22/07/2025, à 13:18
- xubu1957
Re : [Contourné] Perte de connexion Wifi
Bonjour,
Le pilote RTL8822BE est plus performant que le RTL8821CE.
Heureusement que le travail de Larry Finger est poursuivi.
Conseils pour les nouveaux demandeurs et pas qu'eux
Important : Pensez à passer vos sujets en [Réso|u] lorsque ceux-ci le sont, au début du titre en cliquant sur Modifier sous le premier message, et un bref récapitulatif de la solution à la fin de celui-ci. Merci. Membre de Linux-Azur
En ligne
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