Cannot get Samsung R525 Broadcom Wireless to work

lm_mark · 08-07-2014, 04:22 PM

I have a samsung R525, installed kubuntu trusty tahr. Everything installed fine except for the wireless.

The wireless can connect to any network fine. But when I ping anything (including the router) I just get destination unreachable. Needless to say I can't get internet.

The wireless seems to be installed fine, lspci shows my wireless is:

03:00.0 Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)

At first the broadcom drivers weren't installed, but even after installing, same issue.

Anyone have any ideas?

ondoho · 08-07-2014, 04:40 PM

please post the output of

Code:

lsmod

and

Code:

ip link

lm_mark · 08-08-2014, 10:51 AM

lsmod reads:

Code:

Module                  Size  Used by
michael_mic            12612  0 
arc4                   12608  0 
bnep                   19624  2 
rfcomm                 69160  8 
uvcvideo               80885  0 
videobuf2_vmalloc      13216  1 uvcvideo
videobuf2_memops       13362  1 videobuf2_vmalloc
videobuf2_core         40664  1 uvcvideo
videodev              134688  2 uvcvideo,videobuf2_core
samsung_laptop         14486  0 
snd_hda_codec_hdmi     46254  1 
snd_hda_codec_realtek    61438  1 
lib80211_crypt_tkip    17619  0 
snd_seq_midi           13324  0 
snd_seq_midi_event     14899  1 snd_seq_midi
kvm_amd                59987  0 
snd_hda_intel          52355  12 
kvm                   451511  1 kvm_amd
snd_hda_codec         192906  3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
snd_hwdep              13602  1 snd_hda_codec
snd_rawmidi            30144  1 snd_seq_midi
joydev                 17381  0 
wl                   4207846  0 
serio_raw              13462  0 
k10temp                13126  0 
edac_core              62291  0 
edac_mce_amd           22617  0 
btusb                  32412  0 
bluetooth             391196  22 bnep,btusb,rfcomm
snd_seq                61560  2 snd_seq_midi_event,snd_seq_midi
snd_pcm               102099  4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
lib80211               14381  2 wl,lib80211_crypt_tkip
snd_seq_device         14497  3 snd_seq,snd_rawmidi,snd_seq_midi
cfg80211              484040  1 wl
snd_page_alloc         18710  2 snd_pcm,snd_hda_intel
snd_timer              29482  2 snd_pcm,snd_seq
sp5100_tco             13979  0 
i2c_piix4              22155  0 
snd                    69238  34 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
soundcore              12680  1 snd
shpchp                 37032  0 
mac_hid                13205  0 
parport_pc             32701  0 
ppdev                  17671  0 
lp                     17759  0 
parport                42348  3 lp,ppdev,parport_pc
hid_logitech_dj        18581  0 
usbhid                 52570  0 
hid                   106148  2 usbhid,hid_logitech_dj
radeon               1522422  4 
psmouse               106678  0 
i2c_algo_bit           13413  1 radeon
ttm                    85115  1 radeon
ahci                   25819  2 
libahci                32560  1 ahci
drm_kms_helper         53081  1 radeon
sky2                   58191  0 
drm                   303102  6 ttm,drm_kms_helper,radeon
video                  19476  1 samsung_laptop

iplink shows:

Code:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
    link/ether e8:11:32:4a:88:e4 brd ff:ff:ff:ff:ff:ff
3: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state DORMANT mode DORMANT group default qlen 1000
    link/ether b4:74:9f:87:99:3e brd ff:ff:ff:ff:ff:ff

Note I'm using the wired connection to connect to the internet right now. Normally I don't have access to wired.

ondoho · 08-08-2014, 03:42 PM

how did you install the broadcom driver?
it's not in your list of modules (should be b43 somewhere).
what happens when you try

Code:

sudo modprobe b43

also take a look at this arch wiki.
i know you're using kubuntu, but most of the advice in there is generic and very good.
but there must be very similar ubuntu wiki articles, too.
how about this one (i didn't read it though)?

lm_mark · 08-08-2014, 05:34 PM

Quote:

what happens when you try
Code:
sudo modprobe b43

Absolutely nothing. No error message. Just nothing.

I tried reinstalling the STA drivers via the https://help.ubuntu.com/community/Wi...Driver/bcm43xx instructions.

I won't even let me sign into the wireless now. I can see them all still. Before I could sign in, but couldn't ping anything.

I'll keep playing this weekend, and delve more into that doc but any more hints would be helpful. Like how did you know the drivers weren't properly installed?

ondoho · 08-08-2014, 06:19 PM

Quote:

Originally Posted by lm_mark

Like how did you know the drivers weren't properly installed?

i'm sorry, i should have said.
after you try modprobing b43 (this means that you insert the broadcom wireless module - aka driver - into the kernel) you could have typed "lsmod" again, to see if the module b43 shows up (lsmod - lists all modules).
anyhow, you would have noticed if it would have worked (led's flashing, internet connecting...).

i do wonder why your interface shows up, even though b43 is not working and you can't connect...
maybe you installed a wrong driver.
you should uninstall everything again, reboot, and carefully go through the steps to find the right driver.
i am 95% sure that you want the b43 driver and not sta/wl.
please also check the arch wiki, it has the best instructions on finding the right driver for your hardware, and the right links for further reading.

and i know because i recently had to get a broadcom driver working on an old laptop.

you should do much more searching, these questions have been asked & answered literally hundreds of times.

EDDY1 · 08-10-2014, 01:07 PM

Try

Quote:

sudo modprobe b4313

ondoho · 08-10-2014, 04:49 PM

and modprobe also has a verbose switch, so try

Code:

sudo modprobe -v b43
sudo modprobe -v b4313

EDDY1 · 08-10-2014, 05:19 PM

It shows that you have the wl module so try

Quote:

sudo rfkill list