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Thread: Lenovo B575e - WLAN (ubuntu thinks it is Broadcom, but it is Realtek)

  1. #1
    Join Date
    Feb 2013
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    Angry Lenovo B575e - WLAN (ubuntu thinks it is Broadcom, but it is Realtek)

    Hi,

    my boyfriend bought a Lenovo B575e, that came pre-installed with Windows 8. Naturally we replaced it with Ubuntu.

    But Ubuntu has decided to use a wrong driver for wireless and I think it sees a wrong device as well.

    The laptop has this wireless component physically;
    "Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter"
    http://www.ubuntu.com/certification/...90/components/
    (It is also on the manufacturers driver page)

    But Ubuntu says this;
    *-network
    description: Network controller
    product: BCM4313 802.11b/g/n Wireless LAN Controller
    vendor: Broadcom Corporation
    physical id: 0
    bus info: pci@0000:02:00.0
    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:f0100000-f0103fff

    We downloaded the RTL8188CE driver, and built it, but I don't know where to go from here. Somehow it must replace BCM4313?

    (Note, in Windows it uses the Realtek driver - and it works - if Windows 8 can be said to be working)

    I don't know that much about Linux, only Windows, DOS and z/OS (mainframe programmer here, hi!)

    I am sure that we have the RTL8188CE source built correctly, using the correct libraries etc., and it should be in fine shape. What I am unable to figure out, is how to force Ubuntu to use that for the device.

    Any advice?
    Last edited by Ninnus; February 17th, 2013 at 06:32 PM.

  2. #2
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    20,420
    Distro
    Ubuntu 14.10 Utopic Unicorn

    Re: Lenovo B575e - WLAN (ubuntu thinks it is Broadcom, but it is Realtek)

    It may have a Realtek ethernet card, and versions of the B575-series may be available with a Realtek wireless, but it doesn't have a Realtek wireless card. It has a Broadcom. Please run and post:
    Code:
    lspci -nn | grep -e 0200 -e 0280
    If the Broadcom is what I think it is, it's fairly easy to get going.
    z/OS (mainframe programmer here, hi!)
    Awesome. Can we do all this with machine code? That would be fun. Then let's port Ubuntu to 24-bit!!
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #3
    Join Date
    Feb 2013
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    Re: Lenovo B575e - WLAN (ubuntu thinks it is Broadcom, but it is Realtek)

    Code:
    louis@Louis:~$ lspci -nn | grep -e 0200 -e 0280
    01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 07)
    02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
    I only write in COBOL & PL/1, not machine code (yet)

  4. #4
    Join Date
    Aug 2005
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    Re: Lenovo B575e - WLAN (ubuntu thinks it is Broadcom, but it is Realtek)

    Hook up that ethernet temporarily and do:
    Code:
    sudo apt-get install linux-headers-generic
    sudo apt-get install bcmwl-kernel-source
    sudo modprobe wl
    Your wireless should now be humming along.

    Time to take up c++ and python!
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  5. #5
    Join Date
    Feb 2013
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    Re: Lenovo B575e - WLAN (ubuntu thinks it is Broadcom, but it is Realtek)

    Thanks, that worked perfectly!

    I can do C/C++, but I hate Python because when I studied CS my algorithms professor would do algorithms in a tenth of the lines that I did them with in C++. But mine ran faster

  6. #6
    Join Date
    Aug 2005
    Location
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    Distro
    Ubuntu 14.10 Utopic Unicorn

    Re: Lenovo B575e - WLAN (ubuntu thinks it is Broadcom, but it is Realtek)

    Glad it's working. Please use thread tools at the top to mark Solved.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

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