[Risolto] ubuntu 16.04 perde connessione wi-fi

[francesc0-pca]

Salve a tutti, premetto che è la prima volta che mi iscrivo ad un forum e apro una discussione quindi perdonate la mia inesperienza, sono appena passato da windows a ubuntu 16.04 e sto riscontrando problemi con la connessione wi-fi. Perdo la connessione frequentemente e a volte mi chiede di confermare la password, la connessione ritorna inspiegabilmente poco dopo, a volte ci mette di più a volte di meno. Ho già visto altre discussioni di questo genere ma non sono riuscito a risolvere il problema :/ Spero che qualcuno possa aiutarmi, grazie in anticipo

[steff]

Ciao e benvenenuto!
Ti sei scordato di fornirci dettagli tecnici sul Pc o portatile... posta anche

Codice: Seleziona tutto

lspci | grep -i net

per capire quale scheda hai. Potrebbe anche essere un problema driver, non di configurazione, vedremo.

[francesc0-pca]

Salve steff grazie per la risposta, allora il mio è un Ultrabook HP ENVY 4-1070el

lshw

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francesco@francesco-HP-ENVY-4-Notebook-PC:~$ lshw
WARNING: you should run this program as super-user.
francesco-hp-envy-4-notebook-pc
    description: Computer
    width: 64 bits
    capabilities: vsyscall32
  *-core
       description: Motherboard
       physical id: 0
     *-memory
          description: System memory
          physical id: 0
          size: 3847MiB
     *-cpu
          product: Intel(R) Core(TM) i5-3317U CPU @ 1.70GHz
          vendor: Intel Corp.
          physical id: 1
          bus info: cpu@0
          size: 2572MHz
          capacity: 2600MHz
          width: 64 bits
          capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm epb tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms xsaveopt dtherm ida arat pln pts cpufreq
     *-pci
          description: Host bridge
          product: 3rd Gen Core processor DRAM Controller
          vendor: Intel Corporation
          physical id: 100
          bus info: pci@0000:00:00.0
          version: 09
          width: 32 bits
          clock: 33MHz
          configuration: driver=ivb_uncore
          resources: irq:0
        *-display
             description: VGA compatible controller
             product: 3rd Gen Core processor Graphics Controller
             vendor: Intel Corporation
             physical id: 2
             bus info: pci@0000:00:02.0
             version: 09
             width: 64 bits
             clock: 33MHz
             capabilities: vga_controller bus_master cap_list rom
             configuration: driver=i915 latency=0
             resources: irq:30 memory:50000000-503fffff memory:40000000-4fffffff ioport:3000(size=64)
        *-usb:0
             description: USB controller
             product: 7 Series/C210 Series Chipset Family USB xHCI Host Controller
             vendor: Intel Corporation
             physical id: 14
             bus info: pci@0000:00:14.0
             version: 04
             width: 64 bits
             clock: 33MHz
             capabilities: xhci bus_master cap_list
             configuration: driver=xhci_hcd latency=0
             resources: irq:26 memory:50700000-5070ffff
        *-communication
             description: Communication controller
             product: 7 Series/C210 Series Chipset Family MEI Controller #1
             vendor: Intel Corporation
             physical id: 16
             bus info: pci@0000:00:16.0
             version: 04
             width: 64 bits
             clock: 33MHz
             capabilities: bus_master cap_list
             configuration: driver=mei_me latency=0
             resources: irq:31 memory:50714000-5071400f
        *-usb:1
             description: USB controller
             product: 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2
             vendor: Intel Corporation
             physical id: 1a
             bus info: pci@0000:00:1a.0
             version: 04
             width: 32 bits
             clock: 33MHz
             capabilities: ehci bus_master cap_list
             configuration: driver=ehci-pci latency=0
             resources: irq:16 memory:50719000-507193ff
        *-multimedia
             description: Audio device
             product: 7 Series/C210 Series Chipset Family High Definition Audio Controller
             vendor: Intel Corporation
             physical id: 1b
             bus info: pci@0000:00:1b.0
             version: 04
             width: 64 bits
             clock: 33MHz
             capabilities: bus_master cap_list
             configuration: driver=snd_hda_intel latency=0
             resources: irq:32 memory:50710000-50713fff
        *-pci:0
             description: PCI bridge
             product: 7 Series/C210 Series Chipset Family PCI Express Root Port 1
             vendor: Intel Corporation
             physical id: 1c
             bus info: pci@0000:00:1c.0
             version: c4
             width: 32 bits
             clock: 33MHz
             capabilities: pci normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:17 ioport:2000(size=4096) memory:50600000-506fffff ioport:50400000(size=1048576)
           *-generic
                description: Unassigned class
                product: RTL8411 PCI Express Card Reader
                vendor: Realtek Semiconductor Co., Ltd.
                physical id: 0
                bus info: pci@0000:01:00.0
                version: 01
                width: 32 bits
                clock: 33MHz
                capabilities: bus_master cap_list
                configuration: driver=rtsx_pci latency=0
                resources: irq:27 memory:50600000-5060ffff
           *-network
                description: Ethernet interface
                product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
                vendor: Realtek Semiconductor Co., Ltd.
                physical id: 0.2
                bus info: pci@0000:01:00.2
                logical name: eno1
                version: 0a
                serial: 28:92:4a:1e:35:b7
                size: 10Mbit/s
                capacity: 1Gbit/s
                width: 64 bits
                clock: 33MHz
                capabilities: 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=rtl8411-1_0.0.3 06/18/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
                resources: irq:28 ioport:2000(size=256) memory:50404000-50404fff memory:50400000-50403fff
        *-pci:1
             description: PCI bridge
             product: 7 Series/C210 Series Chipset Family PCI Express Root Port 2
             vendor: Intel Corporation
             physical id: 1c.1
             bus info: pci@0000:00:1c.1
             version: c4
             width: 32 bits
             clock: 33MHz
             capabilities: pci normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:16 ioport:4000(size=4096) memory:50500000-505fffff ioport:3fb00000(size=2097152)
           *-network
                description: Network controller
                product: BCM4313 802.11bgn Wireless Network Adapter
                vendor: Broadcom Corporation
                physical id: 0
                bus info: pci@0000:02:00.0
                version: 01
                width: 64 bits
                clock: 33MHz
                capabilities: bus_master cap_list
                configuration: driver=bcma-pci-bridge latency=0
                resources: irq:17 memory:50500000-50503fff
        *-usb:2
             description: USB controller
             product: 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1
             vendor: Intel Corporation
             physical id: 1d
             bus info: pci@0000:00:1d.0
             version: 04
             width: 32 bits
             clock: 33MHz
             capabilities: ehci bus_master cap_list
             configuration: driver=ehci-pci latency=0
             resources: irq:23 memory:50718000-507183ff
        *-isa
             description: ISA bridge
             product: HM77 Express Chipset LPC Controller
             vendor: Intel Corporation
             physical id: 1f
             bus info: pci@0000:00:1f.0
             version: 04
             width: 32 bits
             clock: 33MHz
             capabilities: isa bus_master cap_list
             configuration: driver=lpc_ich latency=0
             resources: irq:0
        *-storage
             description: RAID bus controller
             product: 82801 Mobile SATA Controller [RAID mode]
             vendor: Intel Corporation
             physical id: 1f.2
             bus info: pci@0000:00:1f.2
             version: 04
             width: 32 bits
             clock: 66MHz
             capabilities: storage bus_master cap_list
             configuration: driver=ahci latency=0
             resources: irq:29 ioport:3088(size=8) ioport:3094(size=4) ioport:3080(size=8) ioport:3090(size=4) ioport:3060(size=32) memory:50717000-507177ff
        *-serial UNCLAIMED
             description: SMBus
             product: 7 Series/C210 Series Chipset Family SMBus Controller
             vendor: Intel Corporation
             physical id: 1f.3
             bus info: pci@0000:00:1f.3
             version: 04
             width: 64 bits
             clock: 33MHz
             configuration: latency=0
             resources: memory:50715000-507150ff ioport:3040(size=32)
  *-network
       description: Wireless interface
       physical id: 1
       logical name: wlp2s0b1
       serial: 84:4b:f5:b0:8d:66
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=brcmsmac driverversion=4.4.0-22-generic firmware=610.812 ip=192.168.1.13 link=yes multicast=yes wireless=IEEE 802.11bgn
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.

lspci | grep -i net

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francesco@francesco-HP-ENVY-4-Notebook-PC:~$ lspci | grep -i net
01:00.2 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0a)
02:00.0 Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)

[steff]

Posta questo, me ne sono scordato, mostra il driver in uso

Codice: Seleziona tutto

lspci -k | grep -i net -n3

La procedura sarebbe poi questo, ma non è verificata ancora per la 16.04
http://wiki.ubuntu-it.org/Hardware/Disp ... e_internet

[francesc0-pca]

Codice: Seleziona tutto

francesco@francesco-HP-ENVY-4-Notebook-PC:~$ lspci -k | grep -i net -n3
43-	Subsystem: Hewlett-Packard Company RTL8411 PCI Express Card Reader
44-	Kernel driver in use: rtsx_pci
45-	Kernel modules: rtsx_pci
46:01:00.2 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0a)
47-	DeviceName: Realtek PCIe GBE Family Controller
48:	Subsystem: Hewlett-Packard Company RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
49-	Kernel driver in use: r8169
50-	Kernel modules: r8169
51:02:00.0 Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)
52-	DeviceName: Broadcom 802.11b/g/n WLAN
53:	Subsystem: Hewlett-Packard Company BCM4313 802.11bgn Wireless Network Adapter
54-	Kernel driver in use: bcma-pci-bridge
55-	Kernel modules: bcma

[steff]

Avevo sbagliato il link al wiki, l'ho corretto. Dovresti fare

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sudo apt-get update
sudo apt install   bcmwl-kernel-source

Dopo disattivi i driver non necessari e attivi quello buono (si spera):

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sudo modprobe -r b43 ssb wl brcmfmac brcmsmac bcma bcma-pci-bridge
sudo modprobe wl

Dovrebbe mettere in blacklist in automatico i driver in conflitto, posta dopo

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cat /etc/modprobe.d/blacklist-bcm43.conf 

Sposto in driver e periferiche.

[francesc0-pca]

Con sudo modprobe -r b43 ssb wl brcmfmac brcmsmac bcma bcma-pci-bridge non riuscivo più a vedere le reti wi-fi e mi ha dato

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francesco@francesco-HP-ENVY-4-Notebook-PC:~$ sudo modprobe -r b43 ssb wl brcmfmac brcmsmac bcma bcma-pci-bridge
modprobe: FATAL: Module bcma-pci-bridge not found.

poi con sudo modprobe wl è tornato come prima

cat /etc/modprobe.d/blacklist-bcm43.conf

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francesco@francesco-HP-ENVY-4-Notebook-PC:~$ cat /etc/modprobe.d/blacklist-bcm43.conf
# Warning: This file is autogenerated by bcmwl. All changes to this file will be lost.
blacklist b43
blacklist b43legacy
blacklist ssb
blacklist bcm43xx
blacklist brcm80211
blacklist brcmfmac
blacklist brcmsmac
blacklist bcma

ora aspetto, vediamo se mi da ancora problemi

[steff]

Fin qui bene, prova anche dopo un riavvio e posta

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lspci -k | grep Wireless -n3

[francesc0-pca]

Nessun problema, sembra risolto

posto il risultato di lspci -k | grep Wireless -n3 dopo il riavvio

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francesco@francesco-HP-ENVY-4-Notebook-PC:~$ lspci -k | grep Wireless -n3
48-	Subsystem: Hewlett-Packard Company RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
49-	Kernel driver in use: r8169
50-	Kernel modules: r8169
51:02:00.0 Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)
52-	DeviceName: Broadcom 802.11b/g/n WLAN
53:	Subsystem: Hewlett-Packard Company BCM4313 802.11bgn Wireless Network Adapter
54-	Kernel driver in use: wl
55-	Kernel modules: bcma, wl

grazie mille! Metto risolto nel titolo

[cristian_d]

Avevo sbagliato il link al wiki, l'ho corretto. Dovresti fare

Codice: Seleziona tutto

sudo apt-get update
sudo apt install   bcmwl-kernel-source

Dopo disattivi i driver non necessari e attivi quello buono (si spera):

Codice: Seleziona tutto

sudo modprobe -r b43 ssb wl brcmfmac brcmsmac bcma bcma-pci-bridge
sudo modprobe wl

Dovrebbe mettere in blacklist in automatico i driver in conflitto, posta dopo

Codice: Seleziona tutto

cat /etc/modprobe.d/blacklist-bcm43.conf 

Sposto in driver e periferiche.

Buonasera Steff,
ho lo stesso problema. Di seguito il mio output di lspci -k | grep -i net -n3:

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48-	Kernel modules: i2c_i801
49-01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 540M] (rev ff)
50-	Kernel modules: nvidiafb, nouveau, nvidia_361
51:03:00.0 Network controller: Intel Corporation Centrino Wireless-N 100
52-	Subsystem: Intel Corporation Centrino Wireless-N 100 BGN
53-	Kernel driver in use: iwlwifi
54-	Kernel modules: iwlwifi, wl
55-04:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller
56-	Subsystem: ASUSTeK Computer Inc. ASM1042 SuperSpeed USB Host Controller
57-	Kernel driver in use: xhci_hcd
58:05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
59:	Subsystem: ASUSTeK Computer Inc. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
60-	Kernel driver in use: r8169
61-	Kernel modules: r8169

Confermi che posso usare la stessa soluzione? Installo bcmwl-kernel-source?
Grazie

[steff]

Veramente no, mi sembra completamente diverso.
Se non ti funziona il wireless apri una discussione tua propria, fornendo i dati che hai postato qui.