Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: wifi disabled in kernel 4.15

  1. #1
    Join Date
    Aug 2013
    Beans
    3,970

    wifi disabled in kernel 4.15

    Wifi stops working after kernel upgraded to 4.15

    Code:
    $uname -r
    4.15.0-10-generic
    $sudo lshw -C network
    [sudo] password for monkeybrain: 
      *-network DISABLED        
           description: Wireless interface
           product: BCM4313 802.11bgn Wireless Network Adapter
           vendor: Broadcom Limited
           physical id: 0
           bus info: pci@0000:02:00.0
           logical name: wlp2s0b1
           version: 01
           serial: 68:a3:c4:2f:07:b0
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
           configuration: broadcast=yes driver=brcmsmac driverversion=4.15.0-10-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
           resources: irq:17 memory:f5500000-f5503fff
    But it works if boot into kernel 4.13
    Code:
    $ uname -r
    4.13.0-25-generic
    $ sudo lshw -C network
    [sudo] password for monkeybrain: 
      *-network                 
           description: Wireless interface
           product: BCM4313 802.11bgn Wireless Network Adapter
           vendor: Broadcom Limited
           physical id: 0
           bus info: pci@0000:02:00.0
           logical name: wlp2s0b1
           version: 01
           serial: 68:a3:c4:2f:07:b0
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
           configuration: broadcast=yes driver=brcmsmac driverversion=4.13.0-25-generic firmware=610.812 ip=192.168.1.2 latency=0 link=yes multicast=yes wireless=IEEE 802.11
           resources: irq:17 memory:f5500000-f5503fff
    Seems that some firmware is missing.
    Last edited by monkeybrain20122; March 13th, 2018 at 05:12 AM.

  2. #2
    Join Date
    Jul 2006
    Location
    Here
    Beans
    11,190

    Re: wifi disabled in kernel 4.15

    firmware=N/A on 4.15

    have you tried enabling it in hardware drivers?

  3. #3
    Join Date
    Aug 2013
    Beans
    3,970

    Re: wifi disabled in kernel 4.15

    Quote Originally Posted by kerry_s View Post
    firmware=N/A on 4.15

    have you tried enabling it in hardware drivers?
    There is nothing to enable, this card always works out of the box, until 4.15.

  4. #4
    Join Date
    Jul 2006
    Location
    Here
    Beans
    11,190

    Re: wifi disabled in kernel 4.15

    i thought there was like a broadcom-wl, proprietary drivers also available besides the 1 in kernel.

    sorry, its been years last dealing with broadcom wifi. it was always a issue on my older laptop that died a few years ago.

  5. #5
    Join Date
    Aug 2013
    Beans
    3,970

    Re: wifi disabled in kernel 4.15

    Quote Originally Posted by kerry_s View Post
    i thought there was like a broadcom-wl, proprietary drivers also available besides the 1 in kernel.

    sorry, its been years last dealing with broadcom wifi. it was always a issue on my older laptop that died a few years ago.
    yeah some broadcom cards require downloading a kernel module but not this one. It works out of the box in 4.13, from which I made the post above, I didn't install anything.

  6. #6
    Join Date
    Jun 2007
    Beans
    16,917

    Re: wifi disabled in kernel 4.15


  7. #7
    Join Date
    May 2014
    Location
    /home
    Beans
    6,422
    Distro
    Ubuntu 18.04 Bionic Beaver

    Re: wifi disabled in kernel 4.15

    I think it might be something else, see the wireless script link in my signature and post results

  8. #8
    Join Date
    Aug 2009
    Beans
    Hidden!

    Re: wifi disabled in kernel 4.15

    Would your network card use this driver?
    Code:
    [cavsfan@Le-Beast ~]$ inxi -Fnn
    ...
    Network:   Card: Realtek RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller driver: r8169
               IF: eth0 state: up speed: 100 Mbps duplex: full mac: 00:24:21:51:21:3a
    Creating a Custom Maintenance Free GRUB2 Screen Community Wiki
    Creating a Custom Maintenance Free GRUB2 Screen on Arch Linux
    Intel Core i7-4770K, NVIDIA GeForce GTX 980 Ti, Mobo: ASUSTeK, model: Z87-K, Mem: 16GB, Sound Blaster Audigy Series

  9. #9
    Join Date
    Aug 2013
    Beans
    3,970

    Re: wifi disabled in kernel 4.15

    Quote Originally Posted by mc4man View Post
    You are right!

    Following your link, I found the patched kernel source here , I compiled and installed it and wifi works.
    It is rc9 since they could not merge it to the released branch on time.
    Code:
    $ uname -r
    4.15.0-rc9-custom
    $ lshw -C network
    WARNING: you should run this program as super-user.
      *-network                
           description: Wireless interface
           product: BCM4313 802.11bgn Wireless Network Adapter
           vendor: Broadcom Limited
           physical id: 0
           bus info: pci@0000:02:00.0
           logical name: wlp2s0b1
           version: 01
           serial: 68:a3:c4:2f:07:b0
           width: 64 bits
           clock: 33MHz
           capabilities: bus_master cap_list ethernet physical wireless
           configuration: broadcast=yes driver=brcmsmac driverversion=4.15.0-rc9-custom firmware=610.812 ip=192.168.1.2 latency=0 link=yes multicast=yes wireless=IEEE 802.11
           resources: irq:17 memory:f5500000-f5503fff
    To test a bit more I tested kernel 4.16.0-041600rc2 from mainline kernel ppa, wifi card not detected. But it works in 4.16.0-rc4 from the branch above (again compiled from source)

    Code:
    $uname -r
    4.16.0-rc4-custom
    $ lshw -C network
    WARNING: you should run this program as super-user.
      *-network                 
           description: Wireless interface
           product: BCM4313 802.11bgn Wireless Network Adapter
           vendor: Broadcom Limited
           physical id: 0
           bus info: pci@0000:02:00.0
           logical name: wlp2s0b1
           version: 01
           serial: 68:a3:c4:2f:07:b0
           width: 64 bits
           clock: 33MHz
           capabilities: bus_master cap_list ethernet physical wireless
           configuration: broadcast=yes driver=brcmsmac driverversion=4.16.0-rc4-custom firmware=610.812 ip=192.168.1.2 latency=0 link=yes multicast=yes wireless=IEEE 802.11
           resources: irq:17 memory:f5500000-f5503fff
    Thanks everyone for helping.
    Last edited by monkeybrain20122; March 14th, 2018 at 09:49 AM.

  10. #10
    Join Date
    Jun 2007
    Beans
    16,917

    Re: wifi disabled in kernel 4.15

    ot. - one thing i've noticed on 18.04 is it compiles significantly faster than previous ubuntu, typically 5-6x faster.
    For ex. on same laptop ffmpeg takes 10 -12 min. before while on 18.04 a bit more than 2 min.

Page 1 of 2 12 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •