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Thread: How to enable wifi in Lenovo g50-70, Realtek RTL8723BE

  1. #1
    Join Date
    Mar 2015
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    6

    How to enable wifi in Lenovo g50-70, Realtek RTL8723BE

    Hi,

    I dont see any key to enable wifi in my laptop.

    Please help me to enable it.

    I am using Ubuntu 14.04.2 LTS - 64 bit.

    # lspci -vvnn | grep -A 9 Network
    02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
    Subsystem: Lenovo Device [17aa:b736]
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0, Cache Line Size: 64 bytes
    Interrupt: pin A routed to IRQ 10
    Region 0: I/O ports at 3000 [size=256]
    Region 2: Memory at c0400000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: [40] Power Management version 3
    Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)


    Can anyone have idea how to enable it and it will work smootly.

  2. #2
    Join Date
    May 2014
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    10,852
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: How to enable wifi in Lenovo g50-70

    Can you go http://ubuntuforums.org/showthread.php?t=370108 and run the wireless script and post the results using code tags http://ubuntuforums.org/showthread.p...8#post12776168
    Last edited by jeremy31; March 13th, 2015 at 12:06 PM.

  3. #3
    Join Date
    Mar 2015
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    6

    Re: How to enable wifi in Lenovo g50-70

    Code:
    ########## wireless info START ##########
    
    Report from: 13 Mar 2015 18:05 IST +0530
    
    Booted last: 13 Mar 2015 09:18 IST +0530
    
    Script from: 20 Sep 2014 23:04 UTC +0000
    
    ##### release ###########################
    
    Distributor ID:    Ubuntu
    Description:    Ubuntu 14.04.2 LTS
    Release:    14.04
    Codename:    trusty
    
    ##### kernel ############################
    
    Linux 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
    
    Parameters: ro, quiet, splash, vt.handoff=7
    
    ##### desktop ###########################
    
    sed: can't read /root/.dmrc: No such file or directory
    Could not be determined.
    
    ##### lspci #############################
    
    01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10)
        Subsystem: Lenovo Device [17aa:380a]
        Kernel driver in use: r8169
    
    02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
        Subsystem: Lenovo Device [17aa:b736]
    
    ##### lsusb #############################
    
    Bus 001 Device 002: ID 8087:8000 Intel Corp. 
    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 004: ID 0bda:b728 Realtek Semiconductor Corp. 
    Bus 002 Device 003: ID 5986:055d Acer, Inc 
    Bus 002 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
    Bus 002 Device 006: ID 046d:c05a Logitech, Inc. M90/M100 Optical Mouse
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    
    ##### PCMCIA card info ##################
    
    ##### rfkill ############################
    
    0: ideapad_wlan: Wireless LAN
        Soft blocked: no
        Hard blocked: no
    1: ideapad_bluetooth: Bluetooth
        Soft blocked: yes
        Hard blocked: no
    3: hci0: Bluetooth
        Soft blocked: yes
        Hard blocked: no
    
    ##### lsmod #############################
    
    cfg80211              484040  0 
    ideapad_laptop         18216  0 
    sparse_keymap          13948  1 ideapad_laptop
    
    ##### interfaces ########################
    
    auto lo
    iface lo inet loopback
    
    ##### ifconfig ##########################
    
    eth0      Link encap:Ethernet  HWaddr <MAC 'eth0' [IF]>  
              inet addr:192.168.1.36  Bcast:192.168.1.255  Mask:255.255.255.0
              inet6 addr: fe80::6af7:28ff:fe23:a0aa/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:1154014 errors:0 dropped:116 overruns:0 frame:0
              TX packets:713194 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:1363727705 (1.3 GB)  TX bytes:63852575 (63.8 MB)
    
    ##### iwconfig ##########################
    
    eth0      no wireless extensions.
    
    lo        no wireless extensions.
    
    ##### route #############################
    
    Kernel IP routing table
    Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
    0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 eth0
    192.168.1.0     0.0.0.0         255.255.255.0   U     1      0        0 eth0
    
    ##### resolv.conf #######################
    
    nameserver 127.0.0.1
    
    ##### nm-tool ###########################
    
    NetworkManager Tool
    
    State: connected (global)
    
    - Device: eth0  [Wired connection 1] -------------------------------------------
      Type:              Wired
      Driver:            r8169
      State:             connected
      Default:           yes
      HW Address:        <MAC 'eth0' [IF]>
    
      Capabilities:
        Carrier Detect:  yes
        Speed:           100 Mb/s
    
      Wired Properties
        Carrier:         on
    
      IPv4 Settings:
        Address:         192.168.1.36
        Prefix:          24 (255.255.255.0)
        Gateway:         192.168.1.1
    
        DNS:             8.8.8.8
    
    ##### NetworkManager.state ##############
    
    [main]
    NetworkingEnabled=true
    WirelessEnabled=true
    WWANEnabled=true
    WimaxEnabled=true
    
    ##### NetworkManager.conf ###############
    
    [main]
    plugins=ifupdown,keyfile,ofono
    dns=dnsmasq
    
    no-auto-default=<MAC 'eth0' [IF]>,
    
    [ifupdown]
    managed=false
    
    ##### NetworkManager profiles ###########
    
    ##### iw reg get ########################
    
    Region: Asia/Kolkata (based on set time zone)
    
    country 00:
        (2402 - 2472 @ 40), (3, 20)
        (2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
        (2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
        (5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
        (5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
    
    ##### iwlist channels ###################
    
    eth0      no frequency information.
    
    lo        no frequency information.
    
    ##### iwlist scan #######################
    
    eth0      Interface doesn't support scanning.
    
    lo        Interface doesn't support scanning.
    
    ##### module infos ######################
    
    [cfg80211]
    filename:       /lib/modules/3.13.0-24-generic/kernel/net/wireless/cfg80211.ko
    description:    wireless configuration support
    license:        GPL
    author:         Johannes Berg
    srcversion:     8B3D642D1F2E6406EF33F74
    depends:        
    intree:         Y
    vermagic:       3.13.0-24-generic SMP mod_unload modversions 
    signer:         Magrathea: Glacier signing key
    sig_key:        69:B0:D0:A7:9B:85:D9:06:21:70:6E:8D:06:60:4D:73:0B:35:9F:C0
    sig_hashalgo:   sha512
    parm:           ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
    parm:           cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
    
    ##### module parameters #################
    
    [cfg80211]
    cfg80211_disable_40mhz_24ghz: N
    ieee80211_regdom: 00
    
    ##### /etc/modules ######################
    
    lp
    rtc
    
    ##### modprobe options ##################
    
    [/etc/modprobe.d/blacklist-ath_pci.conf]
    blacklist ath_pci
    
    [/etc/modprobe.d/blacklist.conf]
    blacklist evbug
    blacklist usbmouse
    blacklist usbkbd
    blacklist eepro100
    blacklist de4x5
    blacklist eth1394
    blacklist snd_intel8x0m
    blacklist snd_aw2
    blacklist i2c_i801
    blacklist prism54
    blacklist bcm43xx
    blacklist garmin_gps
    blacklist asus_acpi
    blacklist snd_pcsp
    blacklist pcspkr
    blacklist amd76x_edac
    
    [/etc/modprobe.d/blacklist-rare-network.conf]
    alias net-pf-3 off
    alias net-pf-6 off
    alias net-pf-9 off
    alias net-pf-11 off
    alias net-pf-12 off
    alias net-pf-19 off
    alias net-pf-21 off
    alias net-pf-36 off
    
    [/etc/modprobe.d/iwlwifi.conf]
    remove iwlwifi \
    (/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
    && /sbin/modprobe -r mac80211
    
    [/etc/modprobe.d/mlx4.conf]
    softdep mlx4_core post: mlx4_en
    
    ##### rc.local ##########################
    
    exit 0
    
    ##### pm-utils ##########################
    
    ##### udev rules ########################
    
    [/etc/udev/rules.d/70-persistent-net.rules]
    # PCI device 0x10ec:0x8168 (r8169)
    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
    
    ##### dmesg #############################
    
    ########## wireless info END ############

  4. #4
    Join Date
    Mar 2015
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    Re: How to enable wifi in Lenovo g50-70

    Also not able to know how to enable becuase no hardware key to enable it.

  5. #5
    Join Date
    May 2014
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    Ubuntu 20.04 Focal Fossa

    Re: How to enable wifi in Lenovo g50-70, Realtek RTL8723BE

    Quote Originally Posted by bhavik2 View Post
    Also not able to know how to enable becuase no hardware key to enable it.
    But yours is not hard blocked and you should be able to enable with a FN key combo or using
    Code:
    rfkill unblock wifi
    If you have other issues after enabling wireless, run the script again
    Code:
    ./wireless_script
    and post the new results

  6. #6
    Join Date
    Mar 2015
    Beans
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    Re: How to enable wifi in Lenovo g50-70, Realtek RTL8723BE

    Thanks
    Its working fine now.

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