Bonjour bonjour,
je ne suis pas vraiment nouveau dans le monde linux mais je n'ai pas énormément de connaissance à ce sujet.
Je n'avais jamais eu de problèmes auparavant car j'utilisait une connexion câblée mais, maintenant que je me vois forcé à me déplacer,
le wifi se connecte par intermittences (quand il est de bonne humeur) ou alors, la connexion fonctionne pendant une dizaines de minutes puis, à moins
que l'on redemarre le PC, pas moyen d'avoir accès à internet. Quand cette dernière situation arrive, soit j'ai une connexion établie avec le router mais pas internet soit
les termes "you are now offline " se succèdent toutes les deux minutes 🙂 J'espère que vous pourrez m'aider.
Je suis en dual boot avec W8 ou 10 je sais plus XD mais internet fonction parfaitement sur windows
commande:
cat /etc/lsb-release
resultat:
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.4 LTS"
commande:
lspci
resultat:
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
03:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 840M] (rev a2)
commande: lsmod
resultat:
Module Size Used by
ctr 16384 3
ccm 20480 3
wl 6369280 0
nls_utf8 16384 1
isofs 40960 1
dm_crypt 24576 0
intel_rapl 20480 0
iosf_mbi 16384 1 intel_rapl
x86_pkg_temp_thermal 16384 0
intel_powerclamp 20480 0
coretemp 16384 0
kvm 479232 0
rtsx_usb_ms 20480 0
memstick 20480 1 rtsx_usb_ms
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
aesni_intel 172032 2212
aes_x86_64 20480 1 aesni_intel
lrw 16384 1 aesni_intel
gf128mul 16384 1 lrw
glue_helper 16384 1 aesni_intel
ablk_helper 16384 1 aesni_intel
cryptd 20480 1104 aesni_intel,ablk_helper
uvcvideo 90112 0
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_core 53248 1 uvcvideo
v4l2_common 16384 1 videobuf2_core
hid_logitech_hidpp 20480 0
arc4 16384 2
videodev 159744 3 uvcvideo,v4l2_common,videobuf2_core
media 24576 2 uvcvideo,videodev
joydev 20480 0
rtl8723be 94208 0
serio_raw 16384 0
btcoexist 53248 1 rtl8723be
rtl8723_common 24576 1 rtl8723be
rtl_pci 28672 1 rtl8723be
rtlwifi 73728 2 rtl_pci,rtl8723be
mac80211 712704 3 rtl_pci,rtlwifi,rtl8723be
btusb 40960 0
cfg80211 524288 3 wl,mac80211,rtlwifi
lpc_ich 24576 0
shpchp 40960 0
bnep 20480 2
rfcomm 69632 8
bluetooth 491520 22 bnep,btusb,rfcomm
snd_soc_rt5640 94208 0
snd_soc_rl6231 16384 1 snd_soc_rt5640
snd_hda_codec_hdmi 53248 1
ideapad_laptop 24576 0
sparse_keymap 16384 1 ideapad_laptop
8250_fintek 16384 0
snd_hda_codec_conexant 24576 1
snd_hda_codec_generic 69632 1 snd_hda_codec_conexant
snd_soc_core 196608 1 snd_soc_rt5640
snd_seq_midi 16384 0
snd_compress 20480 1 snd_soc_core
mei_me 20480 0
dw_dmac 16384 0
dw_dmac_core 24576 1 dw_dmac
snd_seq_midi_event 16384 1 snd_seq_midi
snd_hda_intel 36864 6 snd_hda_codec_hdmi
snd_rawmidi 32768 1 snd_seq_midi
snd_soc_sst_acpi 16384 0
snd_pcm_dmaengine 16384 1 snd_soc_core
snd_hda_controller 32768 1 snd_hda_intel
snd_hda_codec 143360 5 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
snd_hwdep 20480 1 snd_hda_codec
i2c_hid 20480 0
i2c_designware_platform 16384 0
snd_seq 65536 2 snd_seq_midi_event,snd_seq_midi
i2c_designware_core 16384 1 i2c_designware_platform
8250_dw 16384 0
spi_pxa2xx_platform 24576 0
snd_pcm 106496 7 snd_soc_rt5640,snd_soc_core,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller,snd_pcm_dmaengine
soc_button_array 16384 0
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 32768 2 snd_pcm,snd_seq
mei 90112 1 mei_me
snd 86016 23 snd_soc_core,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_compress
soundcore 16384 2 snd,snd_hda_codec
binfmt_misc 20480 1
mac_hid 16384 0
nls_iso8859_1 16384 1
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 45056 3 lp,ppdev,parport_pc
rtsx_usb_sdmmc 28672 0
rtsx_usb 24576 2 rtsx_usb_sdmmc,rtsx_usb_ms
hid_logitech_dj 20480 0
usbhid 53248 0
hid 110592 4 i2c_hid,usbhid,hid_logitech_dj,hid_logitech_hidpp
nouveau 1368064 0
i915 1048576 5
mxm_wmi 16384 1 nouveau
ttm 94208 1 nouveau
i2c_algo_bit 16384 2 i915,nouveau
drm_kms_helper 126976 2 i915,nouveau
psmouse 118784 0
drm 344064 8 ttm,i915,drm_kms_helper,nouveau
ahci 36864 3
r8169 81920 0
libahci 32768 1 ahci
mii 16384 1 r8169
wmi 20480 2 mxm_wmi,nouveau
sdhci_acpi 16384 0
sdhci 45056 1 sdhci_acpi
video 20480 2 i915,nouveau
commande: iwconfig
resultat:
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"epfl"
Mode:Managed Frequency:2.437 GHz Access Point: 80:E0:1D:D5:4D:D0
Bit Rate=54 Mb/s Tx-Power=7 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=42/70 Signal level=-68 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:1 Missed beacon:0
lo no wireless extensions.
commande ifconfig
resultat:
eth0 Link encap:Ethernet HWaddr 68:f7:28:01:17:52
inet addr:128.178.178.140 Bcast:128.178.178.255 Mask:255.255.255.0
inet6 addr: fe80::6af7:28ff:fe01:1752/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:255424 errors:0 dropped:11 overruns:0 frame:0
TX packets:91157 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:308388613 (308.3 MB) TX bytes:81335273 (81.3 MB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:1997 errors:0 dropped:0 overruns:0 frame:0
TX packets:1997 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:201364 (201.3 KB) TX bytes:201364 (201.3 KB)
wlan0 Link encap:Ethernet HWaddr 10:08:b1:f5:64:4b
inet addr:128.179.140.135 Bcast:128.179.143.255 Mask:255.255.248.0
inet6 addr: fe80::1208:b1ff:fef5:644b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:304 errors:0 dropped:0 overruns:0 frame:0
TX packets:154 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:25380 (25.3 KB) TX bytes:28047 (28.0 KB)
Merci d'avance!
