Broadcom Lan Card

[Kipa Crawn]

Iknow that the BCM57765/BCM57785 is a combined card-reader / wired-lan 1gbps module. The wired lan works fine, but the card-reader fails. It seems to be recognised, but I can't access any SD card. As it doesn't even recognise it in tools like MountManager, the problem seems deeper than just an auto-mount problem.

My modem is barely 3 feet away and the signal strength is 1 bar. My mobile phone (Nexus 5), the iPad and my other laptop (an old HP running Windows 7) are showing full strength (or at least 4 out of 5 bars).

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no, your solution does not help. I find it outrageous that on a brand new laptop worth about 700 euros I have to complain about the WiFi adaptor chosen by HP for this model. This will be a good thing to think about when I ll be chosing my next laptop, that surely wont be an HP machine anymore.

@mikelwest: i am not sure whether this will be useful or not for you, but I just bought a D-Link nano wireless adapter (DWA131 N300) for a few bucks and everything works perfectly now. Signal strength is 5 out of 5 bars and the speed is good as well. Of course, on the other hand, one of the USB ports will always be occupied....

Seen a few of these posts weak wifi signal and not many resolutions. Try this. I called an old wise Tech from my old job. He told me it usually means the power needs boosting on wifi. To change laptop power settings from HP recommended to High performance. I did it and, so far, it has worked for me. Try it. Might chew up battery cycles, but better than the alternative. I have mine plugged in anyway.

Anyway, I had the same problem when I first bought it; only one signal detected and that was my own, and it was weak despite sitting next to the router! As a consequence, wi-fi speed was so slow as to be unuseable.

I Have same Problem bro... I have resolved by update the Broadcom card into "Broadcom BCM43142 802.11 M.2 Adapter" and my wifi signal is become full 5 bars.... but this solution is just for HP Pavilion with Broadcom Wifi Card...

Hello everybody,

I was playing around with the wifi cards and tried out to unplug the antenna on the wifi card on an old laptop of mine.

Well, I had no wifi signal in a range over 5 meters.

A friend of mine said he had this problem too, hp (I gues the laptop is too the pavillio 15). I told him to look after the antenna at the wifi card.

And there he saw something strange. THe wifi chip card had 2 letterings, one onboard (on the chip card) and one on the a sticker. On the onboard the wifi antenna was plugged in to the channel 2 (L2) and on the sticker it was the channel 1.

Well, he changed the channel, plugged the antenna on the L1 (channel 1 Onboard) and voila, it worked for him very well. No driver updates, no different drivers, nothing. Just the wifi antenna. (Also he had only a wifi antenna, no AUX antenna like some other notebooks)

Hope it helps for you too in that way (if the drivers are not the problem).

Hey,

I am a newbie, or rather an Arch-newb. Booted the iso live, only to see that it does not show the card. Tried using rfkill, tried installing b43 drivers from AUR, installed NetworkManager, broadcom-wl, broadcom-wl-dkms, searched through the entire internet, but none of them seem to work. The most fascinating stuff, though is that I have Garuda Linux installed (drivers initially did not work though) but synced the repositories, rebooted the system and the network card just magically worked.

I also tried doing the same with arch linux but in vain. Copied Garuda Linux drivers to Arch Linux but still did not work.

Is this dependent on the kernel installed?

Yes, you don't have the wl driver (properly) installed and there's no working driver for the chip (hence the bcma-pci-bridge module, which is not a broadcom wireless driver)

I guess the b43/bcma drivers are blacklisted by the wl package, but the module doesn't fit the kernel.

Please post the verbatim outputs of

In a similar problem of mine with a BCM4360 802.11ac Wireless Network Adapter [14e4:43a0] (rev 03) , it was necessary to blacklist the modules bcma brcm80211 brcmsmac through /etc/modprobe.d/

The choice rmmod / modprobe (as terminal command) has no result for this chipset. There is a big conflict with the modules.

For example you can try to blacklist the modules bcm43xx ssb b43 b43legacy ndiswrapper brcmfmac bcma brcm80211 brcmsmac, all of them or one by one .....

Properly unloading all the relevant modules "should" work but I'm not entirely certain on all the modules involved here. The problem is that the problem starts on the live disk and any blacklist you define would not persist, an option to ensure they are blacklisted would be using the command line. I was also under the impression the live disk should already blacklist the non-wl modules

Unloaded these kernel drivers and tried to load back wl but received a 'FATAL' message, saying that the driver (or module?) was not found at a specific location. Would you like me to post the full error message?

Please always post all the outputs you get in full for everything, otherwise if you blankly state "doesn't work" we don't know whether that was due to an error in your execution of the command, an error in general, or whether it might be an outright incompatibility that we can't do much about.

Based on what you mentioned it sounded like the commands went through successfully but you still didn't get an interface allocated, which is an entirely different issue to look at than outright failure to load the module.

Note that if you actually installed the system now you need to explicitly install the broadcom-wl package it isn't going to be inherently part of your installation, that package should in turn already have all the proper blacklists. In doubt post the outputs seth asked for in #9

Why is this the archiso again? I was under the impression you had installed the system what lead to the situation in post #16/#17 ???

Is the output in #21 from the iso or the installed system?

What's the output of

If the network light won't light up it means that either (1) the cable is bad, but you seemed to have ruled that out, (2) the device it is connecting to is bad, or (3) the network adapter is bad. If other computers can connect to the same device, (2) can be ruled out. For (3) start by reinstalling the drivers for the network card. If that doesn't fix it, try running the Broadcom diagnostics (Start > All Programs > Broadcom Advanced Control Suite).

If it can connect directly to the broadband modem, it says the network card is good. There should be absolutely no difference in connecting it to the router. What makes you say it is a Dell problem then? Are you sure the particular router port is good?

I read these forums every day and I would say that 90% of the problems eventually get solved. The ones that don't, we don't know about because the original poster doesn't post back to tell us. I gave you three reasons that the light on the network card doesn't light up. Since the network card works when connecting directly to the modem, that eliminates the network card as the problem. Since the only device that is on your Dell computer that has anything to do with the problem is the network card. It looks to me like the Dell computer is eliminated from the problem. That leaves the router and the cable. You say you have eliminated these as the problem as well. If you are absolutely sure that the router and the cable are not the cause of the problem, then I guess you have one of the few totally unresolvable problems. I can't count the number of times I have gone back and forth with a user who insists that the cable cannot be the problem, only to find that after doing everything else, the only solution was to completely replace the cable. Good luck.

Check if you have a lib/firmware/b43 directory with over a hundred files. If not, have a look at this solved thread: B43 driver seems to be installed, but no place to check "enable wifi" in new install? - #43 by 6x12 .

ok I have installed b43-fwcutter

Do I need to uninstall broadcom-wl-dkms?

Does b43-fwcutter get the firmware from the arch linux repository automatically or how do download the b43-firmware and then run it,

I linked to AUR but b43-firmware is not showing up in the add/remove software list,

My card pci-id is 14e4:4331 (rev 2) so it should work with b43-firmware if I can just download and install it

I really think that there will be a way to help you.

@tbg solved so many issues for Broadcom cards and networking in general

Have you tried some of the many solutions (regardless the model mismatching), e.g. the command here:

I recently installed endeavour and now have a problem that I did not have in the live environment. My broadcom card is not bringing up both NIC ports. The second port gives me the following message in dmesg when I boot my system and says that the port is not connected.

Yes, I tried both the linux-firmware-bnx2x package and the linux-firmware-bnx2x-git package. Both packages are giving me the same result with the error in dmesg. Before I installed linux-firmware-bnx2x package, the card would not work at all, which makes sense. After I added either firmware package for the bnx2x, I only get the one port to work and the other port says it is unplugged even though there is a cable plugged into it and it worked fine in the live ISO. I can try swapping the cables to see if the issue follows my cables, but I highly doubt that would be the issue.

I got the following info from a post KerfufflyKitty posted in the old forums back in January 2018. I think the info is very useful for those with Broadcom WiFi cards/chips, so I'm going to add the info to the new forums.

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