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Thread: Slow wifi in Thinkpad e430

  1. #1
    Join Date
    May 2007
    Beans
    29

    Slow wifi in Thinkpad e430

    Hey.

    I installed 12.10 on a Thinkpad e430.

    The wifi speeds go intermittently from slow to crawl.

    I have tried this: http://ubuntuforums.org/showpost.php...5&postcount=23

    Didn't work.

    Thanks in advance.

    lspci:
    Code:
    00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
    00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
    00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
    00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
    00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
    00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
    00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
    00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
    00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4)
    00:1c.3 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 4 (rev c4)
    00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
    00:1f.0 ISA bridge: Intel Corporation HM77 Express Chipset LPC Controller (rev 04)
    00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
    00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
    02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01)
    03:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01)
    0c:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 07)
    ifconfig:
    Code:
    eth0      Link encap:Ethernet  HWaddr b8:88:e3:30:25:2c  
              inet addr:192.168.1.123  Bcast:192.168.1.255  Mask:255.255.255.0
              inet6 addr: 2601:1:9340:25:1d0f:fec6:4a82:91bf/64 Scope:Global
              inet6 addr: fd3b:b01a:b4df:0:1d0f:fec6:4a82:91bf/64 Scope:Global
              inet6 addr: 2601:1:9340:25:ba88:e3ff:fe30:252c/64 Scope:Global
              inet6 addr: fd3b:b01a:b4df:0:ba88:e3ff:fe30:252c/64 Scope:Global
              inet6 addr: fe80::ba88:e3ff:fe30:252c/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:1659 errors:0 dropped:0 overruns:0 frame:0
              TX packets:1303 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:1680319 (1.6 MB)  TX bytes:199312 (199.3 KB)
    
    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:16436  Metric:1
              RX packets:9542 errors:0 dropped:0 overruns:0 frame:0
              TX packets:9542 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0 
              RX bytes:965101 (965.1 KB)  TX bytes:965101 (965.1 KB)
    
    wlan0     Link encap:Ethernet  HWaddr 08:ed:b9:e2:12:95  
              inet addr:192.168.1.140  Bcast:192.168.1.255  Mask:255.255.255.0
              inet6 addr: 2601:1:9340:25:3946:357:619f:25dd/64 Scope:Global
              inet6 addr: fd3b:b01a:b4df:0:3946:357:619f:25dd/64 Scope:Global
              inet6 addr: 2601:1:9340:25:aed:b9ff:fee2:1295/64 Scope:Global
              inet6 addr: fd3b:b01a:b4df:0:aed:b9ff:fee2:1295/64 Scope:Global
              inet6 addr: fe80::aed:b9ff:fee2:1295/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:3240 errors:0 dropped:0 overruns:0 frame:0
              TX packets:10337 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:963032 (963.0 KB)  TX bytes:1246277 (1.2 MB)
    sudo lshw -C network:
    Code:
    *-network               
           description: Network controller
           product: BCM4313 802.11b/g/n Wireless LAN Controller
           vendor: Broadcom Corporation
           physical id: 0
           bus info: pci@0000:03:00.0
           version: 01
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress bus_master cap_list
           configuration: driver=bcma-pci-bridge latency=0
           resources: irq:17 memory:f2d00000-f2d03fff
      *-network
           description: Ethernet interface
           product: RTL8111/8168B PCI Express Gigabit Ethernet controller
           vendor: Realtek Semiconductor Co., Ltd.
           physical id: 0
           bus info: pci@0000:0c:00.0
           logical name: eth0
           version: 07
           serial: b8:88:e3:30:25:2c
           size: 100Mbit/s
           capacity: 1Gbit/s
           width: 64 bits
           clock: 33MHz
           capabilities: 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=full firmware=rtl8168e-3_0.0.4 03/27/12 ip=192.168.1.123 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
           resources: irq:42 ioport:2000(size=256) memory:f1404000-f1404fff memory:f1400000-f1403fff
      *-network
           description: Wireless interface
           physical id: 2
           logical name: wlan0
           serial: 08:ed:b9:e2:12:95
           capabilities: ethernet physical wireless
           configuration: broadcast=yes driver=brcmsmac driverversion=3.5.0-18-generic firmware=N/A ip=192.168.1.140 link=yes multicast=yes wireless=IEEE 802.11bgn
    lsmod:

    Code:
    Module                  Size  Used by
    snd_hda_codec_hdmi     32007  1 
    snd_hda_codec_conexant    57842  1 
    joydev                 17457  0 
    rfcomm                 46619  12 
    bnep                   18140  2 
    parport_pc             32688  0 
    ppdev                  17073  0 
    coretemp               13400  0 
    kvm                   414070  0 
    ghash_clmulni_intel    13180  0 
    aesni_intel            51037  1 
    cryptd                 20403  2 ghash_clmulni_intel,aesni_intel
    aes_x86_64             17208  1 aesni_intel
    arc4                   12529  2 
    brcmsmac              531848  0 
    mac80211              539908  1 brcmsmac
    snd_hda_intel          33491  3 
    brcmutil               14755  1 brcmsmac
    cfg80211              206566  2 brcmsmac,mac80211
    snd_hda_codec         134212  3 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel
    cordic                 12535  1 brcmsmac
    snd_hwdep              13602  1 snd_hda_codec
    snd_pcm                96580  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
    thinkpad_acpi          81198  0 
    btusb                  18334  0 
    bluetooth             209199  22 rfcomm,bnep,btusb
    snd_seq_midi           13324  0 
    snd_rawmidi            30512  1 snd_seq_midi
    microcode              22803  0 
    snd_seq_midi_event     14899  1 snd_seq_midi
    uvcvideo               76749  0 
    videobuf2_core         32851  1 uvcvideo
    videodev              120309  2 uvcvideo,videobuf2_core
    videobuf2_vmalloc      12860  1 uvcvideo
    videobuf2_memops       13368  1 videobuf2_vmalloc
    snd_seq                61521  2 snd_seq_midi,snd_seq_midi_event
    psmouse                95552  0 
    snd_timer              29425  2 snd_pcm,snd_seq
    snd_seq_device         14497  3 snd_seq_midi,snd_rawmidi,snd_seq
    snd                    78734  17 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,thinkpad_acpi,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
    soundcore              15047  1 snd
    nvram                  14362  1 thinkpad_acpi
    i915                  520629  3 
    bcma                   35656  1 brcmsmac
    drm_kms_helper         46784  1 i915
    drm                   275528  4 i915,drm_kms_helper
    snd_page_alloc         18484  2 snd_hda_intel,snd_pcm
    i2c_algo_bit           13413  1 i915
    serio_raw              13215  0 
    mei                    40690  0 
    lpc_ich                17061  0 
    wmi                    19070  0 
    video                  19335  1 i915
    mac_hid                13205  0 
    lp                     17759  0 
    parport                46345  3 parport_pc,ppdev,lp
    r8169                  61650  0
    Last edited by Chet Hardin; November 24th, 2012 at 08:21 PM. Reason: Adding info

  2. #2
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    20,310
    Distro
    Ubuntu 14.10 Utopic Unicorn

    Re: Slow wifi in Thinkpad e430

    We wish we were seeing the complete details about your wireless devicce:
    Code:
    lspci -nn | grep 0280
    Is your pci.id 14e4:4727? If so, please do:
    Code:
    sudo apt-get install linux-headers-generic bcmwl-kernel-source
    Reboot and give us your report.Fixes for Intel cards almost never help a Broadcom.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #3
    Join Date
    May 2007
    Beans
    29

    Re: Slow wifi in Thinkpad e430

    Hey Chili.

    Yes, my pci.id is 14e4:4727. So I ran the command you recommended, and voila, my wifi speed is back to normal.

    If you don't mind, what did we just do to my computer to fix this?

    Thanks!

  4. #4
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    20,310
    Distro
    Ubuntu 14.10 Utopic Unicorn

    Re: Slow wifi in Thinkpad e430

    Glad it's working! We blacklisted the poorly performing for your device brcmsmac driver and installed the much more appropriate for 4727 Broadcom STA driver; aka bcmwl-kernel-source. If you run:
    Code:
    lsmod
    ...you will see these are now missing:
    brcmsmac 531848 0
    mac80211 539908 1 brcmsmac
    brcmutil 14755 1 brcmsmac
    cfg80211 206566 2 brcmsmac,mac80211
    cordic 12535 1 brcmsmac
    ...and has been replaced with wl.

    brcmsmac, bcma, and it's posse work well enough in other devices, just not 4727.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  5. #5
    Join Date
    May 2007
    Beans
    29

    Re: Slow wifi in Thinkpad e430

    Good to know.

    Thanks.

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