WiFi with acer aspire laptop

[rrrobo]

Laptop was running fine with ubuntu 18.04.Have just done a clean install with linux 20.04.Alas, no wifi.
Tells me I need a wifi adapter.Just strange that it wasnt necessary with 18.04.WiFi worked ok.I note another post
where someone with an acer aspire laptop found it necessary to get a "Realtek RTL8188CUS 802.11n WLAN Adapter."
Does any guru here have a alternative command line suggestion?
Would be grateful for any help

 

[f33dm3bits]

Laptop was running fine with ubuntu 18.04.Have just done a clean install with linux 20.04.Alas, no wifi.
Tells me I need a wifi adapter.Just strange that it wasnt necessary with 18.04.WiFi worked ok.I note another post
where someone with an acer aspire laptop found it necessary to get a "Realtek RTL8188CUS 802.11n WLAN Adapter."
Does any guru here have a alternative command line suggestion?
Would be grateful for any help

Can you run this in a terminal:

lspci -nn | grep -i net

And share the output.

 

[rrrobo]

xxxx@xxxx-Aspire-V5-571PG:~$ lspci -nn | grep -i net


03:00.2 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0a)


04:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43228 802.11a/b/g/n [14e4:4359]


xxxx@xxxx-Aspire-V5-571PG:~$

 

[f33dm3bits]

So your system sees the device. Do you seen any network connections in your NetworkManager applet?

Can you do this in the terminal:

lspci -vvv > lspci.txt

Then search the lspci.txt file for your Broadcom device(which is your wireless network card). It will look like something like this:

00:14.3 Network controller: Intel Corporation Wireless-AC 9560 [Jefferson Peak] (rev 10)
        Subsystem: Intel Corporation Device 0034
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at b4518000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi

Can you past here what it says for you for the the two I have highlighted?

 

[rrrobo]

Thx for the interest.To answer your question - only ethernet is offered as an option in the network manager applet.Here is what i hope is the section of th lspci txt file you asked for.If it is not the relevent bit I will attach the whole file. cheers
04:00.0 Network controller: Broadcom Inc. and subsidiaries BCM43228 802.11a/b/g/n
Subsystem: Foxconn International, Inc. BCM43228 802.11a/b/g/n
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 19
Region 0: Memory at f3500000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: bcma-pci-bridge
Kernel modules: bcma

 

[jglen490]

The Broadcom chips can be a problem, but not necessarily unsolvable. I looked arond on Google, and found this, although it's a couple of years old.

Debian also has some info on that wifi chip.

You may be able to find something via a terminal with

ubuntu-drivers devices

 

[f33dm3bits]

The Broadcom chips can be a problem, but not necessarily unsolvable. I looked arond on Google, and found this, although it's a couple of years old.

Debian also has some info on that wifi chip.

You may be able to find something via a terminal with

ubuntu-drivers devices

What do you see when you run this in the terminal:
Can you open a terminal and just type the following

dmesg | grep bcma

Also I found someone on the ubuntu forums with the same issue on Ubuntu 20.04 and same driver and module which may be more relevant in this case. Connect your laptop by ethernet cable and try to reinstall the broadcom module:

sudo apt remove bcma-pci-bridge
sudo apt install bcmwl-kernel-source

Als it seems according to the ubuntu wifi broadcom documentation is the driver you need. Since you have a BRCM 43228.

 

[rrrobo]

Seems the problem is the laptop doesnt want to load the relevent driver.Will try an ethernet connect when I can get hold of a connection converter.

xxxx@xxxx-Aspire-V5-571PG:~$ dmesg | grep bcma


[ 0.751842] bcma-pci-bridge 0000:04:00.0: bus0: Found chip with id 43228, rev 0x00 and package 0x08
[ 0.751886] bcma-pci-bridge 0000:04:00.0: bus0: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x25, class 0x0)
[ 0.751919] bcma-pci-bridge 0000:04:00.0: bus0: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x1E, class 0x0)
[ 0.751988] bcma-pci-bridge 0000:04:00.0: bus0: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x12, class 0x0)
[ 0.752017] bcma-pci-bridge 0000:04:00.0: bus0: Core 3 found: SDIO Device (manuf 0x4BF, id 0x829, rev 0x07, class 0x0)
[ 0.776249] bcma-pci-bridge 0000:04:00.0: bus0: Bus registered
[ 14.730169] b43 bcma0:1: Direct firmware load for b43/ucode30_mimo.fw failed with error -2
[ 14.730194] b43 bcma0:1: Direct firmware load for b43/ucode30_mimo.fw failed with error -2
[ 14.730221] b43 bcma0:1: Direct firmware load for b43-open/ucode30_mimo.fw failed with error -2
[ 14.730243] b43 bcma0:1: Direct firmware load for b43-open/ucode30_mimo.fw failed with error -2
xxxx@xxxx-Aspire-V5-571PG:~$ ^C
xxxx@xxxx-Aspire-V5-571PG:~$

 

[jglen490]

Please try :

ubuntu-drivers devices

 

[rrrobo]

Many thanks f33*.Had to get a propriety connector to enablet ethernet,but with your 2 suggestions enacted it now works fine on wifi.