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I reinstalled a driver on Windows for Broadcom Network Adapter and after that my WiFi stopped working on Ubuntu(16.04) completely.

I tried to reinstall drivers, using this commands:

1. sudo apt-get purge bcmwl-kernel-source
2. sudo apt-get install bcmwl-kernel-source

But it didn't help

Output of the second command(install bcmwl-kernel-source):

Unpacking bcmwl-kernel-source (6.30.223.271+bdcom-0ubuntu1~1.2) ...
Setting up bcmwl-kernel-source (6.30.223.271+bdcom-0ubuntu1~1.2) ...
Loading new bcmwl-6.30.223.271+bdcom DKMS files...
First Installation: checking all kernels...
Building only for 4.15.0-24-generic
Building for architecture x86_64
Building initial module for 4.15.0-24-generic
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/bcmwl-kernel-source.0.crash'
Error! Bad return status for module build on kernel: 4.15.0-24-generic (x86_64)
Consult /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/make.log for more information.
modprobe: FATAL: Module wl not found in directory /lib/modules/4.15.0-24-generic
update-initramfs: deferring update (trigger activated)
Processing triggers for initramfs-tools (0.122ubuntu8.11) ...
update-initramfs: Generating /boot/initrd.img-4.15.0-24-generic
W: Possible missing firmware /lib/firmware/i915/kbl_guc_ver9_14.bin for module i915
W: Possible missing firmware /lib/firmware/i915/bxt_guc_ver8_7.bin for module i915
root@roman-Lenovo-G510:~# apt-get install bcmwl-kernel-source
Reading package lists... Done
Building dependency tree       
Reading state information... Done
bcmwl-kernel-source is already the newest version (6.30.223.271+bdcom-0ubuntu1~1.2).

This command lspci -nn -d 14e4 outputs:

08:00.0 Network controller [0280]: Broadcom Limited BCM43142 802.11b/g/n [14e4:4365] (rev 01)

Could you tell me how to fix my problem?

/var/crash/bcmwl-kernel-source.0.crash

ProblemType: Package
DKMSBuildLog:
 DKMS make.log for bcmwl-6.30.223.271+bdcom for kernel 4.15.0-24-generic (x86_64)
 Вт июл  3 16:26:40 MSK 2018
 make: Entering directory '/usr/src/linux-headers-4.15.0-24-generic'
 Makefile:976: "Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel"
 CFG80211 API is prefered for this kernel version
 Using CFG80211 API
   CC [M]  /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.o
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c: In function ‘osl_os_get_image_block’:
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:1083:26: warning: passing argument 2 of ‘kernel_read’ makes pointer from integer without a cast [-Wint-conversion]
   rdlen = kernel_read(fp, fp->f_pos, buf, len);
                           ^
 In file included from ./include/linux/huge_mm.h:7:0,
                  from ./include/linux/mm.h:463,
                  from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/include/linuxver.h:65,
                  from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:25:
 ./include/linux/fs.h:2858:16: note: expected ‘void *’ but argument is of type ‘loff_t {aka long long int}’
  extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
                 ^
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:1083:37: warning: passing argument 3 of ‘kernel_read’ makes integer from pointer without a cast [-Wint-conversion]
   rdlen = kernel_read(fp, fp->f_pos, buf, len);
                                      ^
 In file included from ./include/linux/huge_mm.h:7:0,
                  from ./include/linux/mm.h:463,
                  from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/include/linuxver.h:65,
                  from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:25:
 ./include/linux/fs.h:2858:16: note: expected ‘size_t {aka long unsigned int}’ but argument is of type ‘char *’
  extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
                 ^
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:1083:42: warning: passing argument 4 of ‘kernel_read’ makes pointer from integer without a cast [-Wint-conversion]
   rdlen = kernel_read(fp, fp->f_pos, buf, len);
                                           ^
 In file included from ./include/linux/huge_mm.h:7:0,
                  from ./include/linux/mm.h:463,
                  from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/include/linuxver.h:65,
                  from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:25:
 ./include/linux/fs.h:2858:16: note: expected ‘loff_t * {aka long long int *}’ but argument is of type ‘int’
  extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
                 ^
   CC [M]  /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.o
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c: In function ‘wl_init_timer’:
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:2359:2: error: implicit declaration of function ‘init_timer’ [-Werror=implicit-function-declaration]
   init_timer(&t->timer);
   ^
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:2360:10: error: ‘struct timer_list’ has no member named ‘data’
   t->timer.data = (ulong) t;
           ^
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:2361:20: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types]
   t->timer.function = wl_timer;
                     ^
 cc1: some warnings being treated as errors
 scripts/Makefile.build:332: recipe for target '/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.o' failed
 make[1]: *** [/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.o] Error 1
 Makefile:1552: recipe for target '_module_/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build' failed
 make: *** [_module_/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build] Error 2
 make: Leaving directory '/usr/src/linux-headers-4.15.0-24-generic'
DKMSKernelVersion: 4.15.0-24-generic
Date: Tue Jul  3 16:26:46 2018
DuplicateSignature: dkms:bcmwl-kernel-source:6.30.223.271+bdcom-0ubuntu1~1.2:/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:2359:2: error: implicit declaration of function ‘init_timer’ [-Werror=implicit-function-declaration]
Package: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu1~1.2
PackageVersion: 6.30.223.271+bdcom-0ubuntu1~1.2
SourcePackage: bcmwl
Title: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu1~1.2: bcmwl kernel module failed to build

/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/make.log

DKMS make.log for bcmwl-6.30.223.271+bdcom for kernel 4.15.0-24-generic (x86_64)
Чт июл  5 16:26:16 MSK 2018
make: Entering directory '/usr/src/linux-headers-4.15.0-24-generic'
Makefile:976: "Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel"
CFG80211 API is prefered for this kernel version
Using CFG80211 API
  CC [M]  /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.o
/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c: In function ‘osl_os_get_image_block’:
/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:1083:26: warning: passing argument 2 of ‘kernel_read’ makes pointer from integer without a cast [-Wint-conversion]
  rdlen = kernel_read(fp, fp->f_pos, buf, len);
                          ^
In file included from ./include/linux/huge_mm.h:7:0,
                 from ./include/linux/mm.h:463,
                 from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/include/linuxver.h:65,
                 from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:25:
./include/linux/fs.h:2858:16: note: expected ‘void *’ but argument is of type ‘loff_t {aka long long int}’
 extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
                ^
/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:1083:37: warning: passing argument 3 of ‘kernel_read’ makes integer from pointer without a cast [-Wint-conversion]
  rdlen = kernel_read(fp, fp->f_pos, buf, len);
                                     ^
In file included from ./include/linux/huge_mm.h:7:0,
                 from ./include/linux/mm.h:463,
                 from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/include/linuxver.h:65,
                 from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:25:
./include/linux/fs.h:2858:16: note: expected ‘size_t {aka long unsigned int}’ but argument is of type ‘char *’
 extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
                ^
/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:1083:42: warning: passing argument 4 of ‘kernel_read’ makes pointer from integer without a cast [-Wint-conversion]
  rdlen = kernel_read(fp, fp->f_pos, buf, len);
                                          ^
In file included from ./include/linux/huge_mm.h:7:0,
                 from ./include/linux/mm.h:463,
                 from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/include/linuxver.h:65,
                 from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:25:
./include/linux/fs.h:2858:16: note: expected ‘loff_t * {aka long long int *}’ but argument is of type ‘int’
 extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
                ^
  CC [M]  /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.o
/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c: In function ‘wl_init_timer’:
/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:2359:2: error: implicit declaration of function ‘init_timer’ [-Werror=implicit-function-declaration]
  init_timer(&t->timer);
  ^
/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:2360:10: error: ‘struct timer_list’ has no member named ‘data’
  t->timer.data = (ulong) t;
          ^
/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:2361:20: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types]
  t->timer.function = wl_timer;
                    ^
cc1: some warnings being treated as errors
scripts/Makefile.build:332: recipe for target '/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.o' failed
make[1]: *** [/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.o] Error 1
Makefile:1552: recipe for target '_module_/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build' failed
make: *** [_module_/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build] Error 2
make: Leaving directory '/usr/src/linux-headers-4.15.0-24-generic'
Pilot6
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John Kent
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  • Please attach the contents of /var/crash/bcmwl-kernel-source.0.crash and /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/make.log for more information. – SudoSURoot Jul 05 '18 at 13:30
  • @SudoSURoot Done! – John Kent Jul 05 '18 at 13:35
  • I see both logs say: please install libelf-dev, libelf-devel or elfutils-libelf-devel. Try running: sudo apt-get install libelf-dev and then purge and install again. – SudoSURoot Jul 05 '18 at 13:42
  • @Terrance Could hint me how to go to that kernel? – John Kent Jul 05 '18 at 14:13
  • // , Here's the full text of the error I got from the "system problem detected" prompt: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu1~1.2: bcmwl kerne l module failed to build

    I'm in the market for a new computer, and with BS like this the new mac OS is starting to look more and more attractive.

     – Nathan Basanese Jul 11 '18 at 21:18
  • https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1757008 – Ufos Jul 18 '18 at 15:58

2 Answers2

31

Canonical updated HWE stack for Ubuntu 16.04 to the 4.15 kernel. But they forgot to update the Broadcom wireless driver, so it can be built. It is a critical and a very stupid bug, that will cause trouble for many people using the LTS.

Now the issue is being fixed and a compatible driver version has been built

This issue can be solved by installing a compatible version of bcmwl-kernel-source that should build on the 4.15 kernels.

Download http://archive.ubuntu.com/ubuntu/pool/restricted/b/bcmwl/bcmwl-kernel-source_6.30.223.271+bdcom-0ubuntu1~1.3_amd64.deb

and install it using dkpg.

This can be done by

wget http://archive.ubuntu.com/ubuntu/pool/restricted/b/bcmwl/bcmwl-kernel-source_6.30.223.271+bdcom-0ubuntu1~1.3_amd64.deb
sudo dpkg -i bcmwl-kernel-source_6.30.223.271+bdcom-0ubuntu1~1.3_amd64.deb

Windows is not related at all.

The problem is that you have a kernel that is not compatible with the driver.

Important: If you don't have any other network connection but the Broadcom Wi-Fi, you can boot with a previous kernel using grub menu and install the driver. It should build for all kernels.

Pilot6
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  • Comments are not for extended discussion; this conversation has been moved to chat. – Thomas Ward Jul 05 '18 at 15:26
  • @DavidFoerster I changed the answer and gave a link to the driver built for 16.04. This is the version that will be added soon to the repos. There is no difference except the version number, but you are correct that it is better to use this one for future possible upgrades if any. – Pilot6 Jul 06 '18 at 04:35
  • They also broke the r8168-dkms driver. See my answer at https://askubuntu.com/questions/1052971/r8168-r8169-realtek-driver-module-troubles/1053520#1053520 for more details. – heynnema Jul 11 '18 at 15:12
  • @heynnema How do you all getn the 4.15 kernel? Is the proposed repo enabled. Nothing is broken for those who are not running before the train. – Pilot6 Jul 11 '18 at 16:50
  • @Pilot6 as you mention in your answer, "Canonical updated HWE stack for Ubuntu 16.04 to the 4.15 kernel.". Other users are saying the same thing... that they're running 4.15 on 16.04 LTS, and as my link suggests, are also requiring newer drivers to be 100% functional again. I haven't asked if they're running proposed, or not. – heynnema Jul 11 '18 at 18:13
  • THe fact that Canonical really did NOT update to 4.15 yet. They uploaded it to 'proposed' for testing and now they are fixing this kind of troubles. – Pilot6 Jul 11 '18 at 20:41
  • // , "It is a critical and a very stupid bug" I can't help but agree – Nathan Basanese Jul 11 '18 at 21:29
  • Would this work in Ubuntu 18.04, or should I follow another path? Thank you. – Miguel Espeso Jul 28 '18 at 13:49
  • There is no such problem on 18.04. – Pilot6 Jul 28 '18 at 13:49
5

Apropos to Pilot6's nice answer to this question, it looks like an official fix for xenial (i.e. not requiring one to install packages from bionic) has been released (if you use package broadcom-sta), or else committed (if you use package bcmwl which provides bcmwl-kernel-source).

For further info, see:

broadcom-sta: https://bugs.launchpad.net/ubuntu/+source/broadcom-sta/+bug/1777444

bcmwl: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1777646

user847003
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