Wlan with Broadcom wlan circuit (BCM4311 802.11a/b/g) too slow problem

**bin123** · 16-Jul-2018, 01:34

Installed Suse Leap 15 with Gnome on Dell D620 with sticker "Intel Core 2 Duo" with Intel Core2 T5600 (Dual core 1,83GHz) with Broadcom wlan circuit (BCM4311 802.11a/b/g) and after installation wlan was missing, but driving install_bcm43xx_firmware wlan was present (with b43), but in this case wlan is unusable because of slow speed 1-11Mb/s (earlier with Suse 42.3 version with same Broadcom wlan was working proper speeds). How to fix speed problem ?

**deano_ferrari** · 16-Jul-2018, 01:48

Assuming wlan0 is the applicable wireless device node, please show the output of

Code:

iw dev wlan0 link

Code:

iw dev wlan0 info

Also for general device capabilities....

Code:

iw list

**bin123** · 16-Jul-2018, 03:15

Here information:

Leap 15

>iw dev wlan0 link

freq: 2437
signal: -42 dBm
tx bitrate: 9.0 MBit/s
bss flags: short-preamble short-slot-time
dtim period: 1
beacon int: 100

>iw dev wlan0 info

ifindex 3
wdev 0x1
type managed
wiphy 0
channel 6 (2437 Mhz), width 20 MHz (no HT), ceneter1: 2437 MHz
txpower 20.00 dBm

and with Leap 42.3 with working wlan has same values except tx bitrate: 48 MB/s ( tested shortly with swapping old hd in)

I do not know if system is allready mixed bad way with earlier settings tests as wl driver is default (active) when started, but using

>modbrobe b43
>rmmod wl

get wlan on but in unusable slow mode.

**deano_ferrari** · 16-Jul-2018, 03:40

Originally Posted by bin123

Here information:

Leap 15

>iw dev wlan0 link

freq: 2437
signal: -42 dBm
tx bitrate: 9.0 MBit/s
bss flags: short-preamble short-slot-time
dtim period: 1
beacon int: 100

>iw dev wlan0 info

ifindex 3
wdev 0x1
type managed
wiphy 0
channel 6 (2437 Mhz), width 20 MHz (no HT), ceneter1: 2437 MHz
txpower 20.00 dBm

and with Leap 42.3 with working wlan has same values except tx bitrate: 48 MB/s ( tested shortly with swapping old hd in)

Agreed that is a much lower bitrate than expected. I wonder why (no HT) is reported. Can you please also post the output from

Code:

iw list

I do not know if system is allready mixed bad way with earlier settings tests as wl driver is default (active) when started, but using

>modbrobe b43
>rmmod wl

get wlan on but in unusable slow mode.

If the broadcom-wl package is installed, this then blacklists the b43 driver (via a blacklist file in /etc/modprobe.d/).

**bin123** · 16-Jul-2018, 04:26

Here iw lits info:

>iw list
Wiphy phy0
max # scan SSIDs: 4
max scan IEs length: 2285 bytes
max # sched scan SSIDs: 0
max # match sets: 0
max # scan plans: 1
max scan plan interval: -1
max scan plan iterations: 0
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Device supports RSN-IBSS.
Supported Ciphers:
* WEP40 (00-0f-ac:1)
* WEP104 (00-0f-ac:5)
* TKIP (00-0f-ac:2)
* CCMP-128 (00-0f-ac:4)
* CCMP-256 (00-0f-ac:10)
* GCMP-128 (00-0f-ac:8)
* GCMP-256 (00-0f-ac:9)
Available Antennas: TX 0 RX 0
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* monitor
* mesh point
Band 1:
Bitrates (non-HT):
* 1.0 Mbps
* 2.0 Mbps (short preamble supported)
* 5.5 Mbps (short preamble supported)
* 11.0 Mbps (short preamble supported)
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
Frequencies:
* 2412 MHz [1] (20.0 dBm)
* 2417 MHz [2] (20.0 dBm)
* 2422 MHz [3] (20.0 dBm)
* 2427 MHz [4] (20.0 dBm)
* 2432 MHz [5] (20.0 dBm)
* 2437 MHz [6] (20.0 dBm)
* 2442 MHz [7] (20.0 dBm)
* 2447 MHz [8] (20.0 dBm)
* 2452 MHz [9] (20.0 dBm)
* 2457 MHz [10] (20.0 dBm)
* 2462 MHz [11] (20.0 dBm)
* 2467 MHz [12] (20.0 dBm) (no IR)
* 2472 MHz [13] (20.0 dBm) (no IR)
* 2484 MHz [14] (20.0 dBm) (no IR)
Supported commands:
* new_interface
* set_interface
* new_key
* start_ap
* new_station
* new_mpath
* set_mesh_config
* set_bss
* authenticate
* associate
* deauthenticate
* disassociate
* join_ibss
* join_mesh
* set_tx_bitrate_mask
* frame
* frame_wait_cancel
* set_wiphy_netns
* set_channel
* set_wds_peer
* probe_client
* set_noack_map
* register_beacons
* start_p2p_device
* set_mcast_rate
* connect
* disconnect
* set_qos_map
* Unknown command (121)
Supported TX frame types:
* IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
Supported RX frame types:
* IBSS: 0x40 0xb0 0xc0 0xd0
* managed: 0x40 0xd0
* AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* mesh point: 0xb0 0xc0 0xd0
* P2P-client: 0x40 0xd0
* P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* P2P-device: 0x40 0xd0
software interface modes (can always be added):
* AP/VLAN
* monitor
interface combinations are not supported
HT Capability overrides:
* MCS: ff ff ff ff ff ff ff ff ff ff
* maximum A-MSDU length
* supported channel width
* short GI for 40 MHz
* max A-MPDU length exponent
* min MPDU start spacing
Device supports TX status socket option.
Device supports HT-IBSS.
Device supports SAE with AUTHENTICATE command
Device supports low priority scan.
Device supports scan flush.
Device supports AP scan.
Device supports per-vif TX power setting
Driver supports full state transitions for AP/GO clients
Driver supports a userspace MPM
Device supports configuring vdev MAC-addr on create.

Maybe easier now just to reinstal Leap 15 and try then from clean setup.

**deano_ferrari** · 16-Jul-2018, 05:02

Maybe easier now just to reinstal Leap 15 and try then from clean setup.

That’s unlikely to help. Perhaps there is some issue with the firmware. More investigation needed.

Please post the hardware details

Code:

/usr/sbin/hwinfo —wlan

**bin123** · 16-Jul-2018, 06:20

Suse Leap 15 reinstalled then:

1) no wlan available on dektop after installation
2) checked if b43-fwcutter installed -> Ok ( needed before running install_bcm43xx_firmware)
>zypper se b43-fwcutter
3) joined to network with wire and then driven "install_bcm43xx_firmware" -> Ok
> install_bcm43xx_firmware
4) wired networking cutted off and no wlan available: next step try reboot to get wlan activated.
5) reboot done and now wlan network selection possible.
6) tested connection speed when firefox-browser opens page.-> again unusable slow speed 11Mb/s
7) tested hwinfo
>hwinfo --wlan

19: PCI c00.0: 0282 WLAN controller
[Created at pci.378]
Unique ID: y9sn.jJPmv8UzN_1
Parent ID: qTvu.f86JBt6kfy7
SysFS ID: /devices/pci0000:00/0000:00:1c.1/0000:0c:00.0
SysFS BusID: 0000:0c:00.0
Hardware Class: network
Model: "Dell Wireless 1490 Dual Band WLAN Mini-Card"
Vendor: pci 0x14e4 "Broadcom"
Device: pci 0x4312 "BCM4311 802.11a/b/g"
SubVendor: pci 0x1028 "Dell"
SubDevice: pci 0x0007 "Wireless 1490 Dual Band WLAN Mini-Card"
Revision: 0x01
Driver: "b43-pci-bridge"
Driver Modules: "ssb"
Device File: wlan0
Features: WLAN
Memory Range: 0xefdfc000-0xefdfffff (rw,non-prefetchable)
IRQ: 17 (no events)
HW Address: 00:19:7e:54:f4:be
Permanent HW Address: 00:19:7e:54:f4:be
Link detected: yes
WLAN channels: 1 2 3 4 5 6 7 8 9 10 11 12 13 14
WLAN frequencies: 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 2.467 2.472 2.484
WLAN encryption modes: WEP40 WEP104 TKIP CCMP
WLAN authentication modes: open sharedkey wpa-psk wpa-eap
Module Alias: "pci:v000014E4d00004312sv00001028sd00000007bc02sc80i00"
Driver Info #0:
Driver Status: ssb is active
Driver Activation Cmd: "modprobe ssb"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #4 (PCI bridge)

Any idea what try next to get speed usable ?

**Sauerland** · 16-Jul-2018, 06:47

Any idea what try next to get speed usable ?

Yes.

1. Update your System to get the latest Kernel.
2. Restart your System.
3. Add the Packman Repo (you need wired Lan). https://forums.opensuse.org/showthre...SUSE-Leap-42-3
You have to change the URL of the Repos from 42.3 to 15.0
http://packman.inode.at/suse/openSUSE_Leap_15.0/
http://opensuse-guide.org/repo/openSUSE_Leap_15.0/

Install all multimedia codecs as shown in the thread, switch your installed packages to Packman as shown also in the threat.

4. Now install broadcom-wl:

Code:

zypper in -f broadcom-wl broadcom-wl-kmp-default

5. Restart your sytem.

**bin123** · 16-Jul-2018, 08:26

Next step done

1) Latest Leap 15 updates installed
2) Wlan still slow
3) Trying install from http://packman.inode.at/suse/openSUSE_Leap_15.0/
next packages

broadcom-wl-6.30.223.271-lp150.10.33.x86_64.rpm
broadcom-wl-kmp-default-6.30.223.271_k4.12.14_lp150.12.4-lp150.10.33.x86_64.rpm

done..but with warnings integrity. (click link from browser way to install in yast)

4) restarted and no wlan present
5) wlan started running install_bcm43xx_firmware
6) wlan still unusable slow.

**Sauerland** · 16-Jul-2018, 10:07

You should add the Packman Repo as described in the Link.
broadcom-wl does not need any Firmware!!!!!

Post:

Code:

zypper se -si broadcom

Code:

zypper lr -d

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