On the b43 website I found support for BCM4312 802.11a/b/g:
PCI-ID State Chip Modes PHY version Driver
14e4:4312 supported (802.11g only) BCM4312 a/b/g G b43
My laptop has opensuse 11.2:
Linux a3800 184.108.40.206-0.1-desktop #1 SMP PREEMPT 2010-01-27 08:20:11 +0100 x86_64 x86_64 x86_64 GNU/Linux
30:00.0 Network controller : Broadcom Corporation BCM4312 802.11a/b/g [14e4:4312] (rev 02)
Subsystem: Hewlett-Packard Company Broadcom 802.11a/b/g WLAN [103c:1371]
b43 does work, but the rate is 1~5Mbit/s and thats way to slow… On opensuse 10.3 with wl module it was a solid 48~54Mbit/s
Changing the rate with “iwconfig wlan0 rate 54M” does not speed things up. (iwconfig shows 54M after the command, but up/downloads are not faster)
lsmod | grep b43
b43 175096 0
mac80211 257120 1 b43
cfg80211 123296 2 b43,mac80211
ssb 63672 1 b43
pcmcia 47292 2 b43,ssb
pcmcia_core 50084 5 b43,ssb,yenta_socket,pcmcia,rsrc_nonstatic
26.920232] BIOS EDD facility v0.16 2004-Jun-25, 1 devices found
28.138781] Bluetooth: L2CAP ver 2.13
28.138789] Bluetooth: L2CAP socket layer initialized
28.691436] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
28.691446] Bluetooth: BNEP filters: protocol multicast
28.766578] Bridge firewalling registered
28.817647] Bluetooth: SCO (Voice Link) ver 0.6
28.817657] Bluetooth: SCO socket layer initialized
28.940066] Bluetooth: RFCOMM TTY layer initialized
28.940079] Bluetooth: RFCOMM socket layer initialized
28.940085] Bluetooth: RFCOMM ver 1.11
32.726272] tg3 0000:10:00.0: PME# disabled
32.726558] alloc irq_desc for 27 on node 0
32.726565] alloc kstat_irqs on node 0
32.726596] tg3 0000:10:00.0: irq 27 for MSI/MSI-X
32.781579] ADDRCONF(NETDEV_UP): eth0: link is not ready
32.803078] b43 ssb0:0: firmware: requesting b43/ucode13.fw
32.881423] b43 ssb0:0: firmware: requesting b43/b0g0initvals13.fw
33.054049] b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)
33.097566] Registered led device: b43-phy0::tx
33.098430] Registered led device: b43-phy0::rx
33.098986] Registered led device: b43-phy0::radio
33.109753] ADDRCONF(NETDEV_UP): wlan0: link is not ready
33.172619] NET: Registered protocol family 17
49.797545] wlan0: authenticate with AP 00:14:6c:9a:b6:c4
49.799121] wlan0: authenticated
49.799128] wlan0: associate with AP 00:14:6c:9a:b6:c4
49.802435] wlan0: RX AssocResp from 00:14:6c:9a:b6:c4 (capab=0x411 status=0 aid=1)
49.802440] wlan0: associated
49.803700] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
60.772030] wlan0: no IPv6 routers present
61.424081] RPC: Registered udp transport module.
61.424097] RPC: Registered tcp transport module.
61.438982] Slow work thread pool: Starting up
61.439309] Slow work thread pool: Ready
61.439377] FS-Cache: Loaded
61.462107] FS-Cache: Netfs 'nfs' registered for caching
What can I do to speed things up?
I tried the Broadcom wl module, but it was very unstable (on/off all the time) and slow speed.
I tried ndiswrapper, it has stable connection and proper 54Mbit/s speed but it makes my system freeze at boot 2 out of 3 times…
Any help is much appreciated!
On 03/21/2010 09:36 AM, Fire11 wrote:
> What can I do to speed things up?
> I tried the Broadcom wl module, but it was very unstable (on/off all
> the time) and slow speed.
> I tried ndiswrapper, it has stable connection and proper 54Mbit/s speed
> but it makes my system freeze at boot 2 out of 3 times…
> Any help is much appreciated!
The ndiswrapper experience is typical. With it, you are letting a Windows driver
run unchecked in the inner-most ring of the computer. The freezes you see would
be “Blue Screens of Death” on Windows.
There is a patch that improves transmit performance of your device that is in
later kernels. It has not been backported to the 11.2 kernel as 2.6.31 is no
longer maintained as a “stable” kernel. To get the benefits of this patch,
please get the 2.6.33 kernel from the Factory repo, or the compat-wireless
package from Packman.
Thanks for the reply.
Installing a newer kernel into opensuse would not be so easy so I want to go for the compat-wireless package.
I do have the packman repository, but in yast I do not find the package?
does the broadcom-wl package from packman not work with your device?
Hi caf4926, yes and no.
The connection can be made but it is unstable.
I just tried compat-wireless patch but after that i was unable to logon in KDE4!
Found the package at:
Index of /repositories/home:/broumbroum23/openSUSE_11.2_oss
On 03/21/2010 11:36 AM, Fire11 wrote:
> Hi caf4926, yes and no.
> The connection can be made but it is unstable.
> I just tried compat-wireless patch but after that i was unable to
> logon in KDE4!
> Found the package at:
> ‘Index of /repositories/home:/broumbroum23/openSUSE_11.2_oss’
I think you picked the wrong package. You need the one that matches your kernel
as shown by ‘uname -r’.
For the record, the BCM4312 802.11a/b/g device has the same b/g part as a
BCM4311. It works with b43 since 2.6.24. It is the BCM4312 802.11b/g that needs
wl or b43 from 2.6.32, or later. Confusing enough?
Also for the record my wireless is:
04:00.0 Network controller : Broadcom Corporation BCM4312 802.11b/g [14e4:4315] (rev 01)
Subsystem: Broadcom Corporation Device [14e4:04b5]
Kernel driver in use: wl
I tried the newer kernel and it works, but not as well as with the Packman broadcom-wl packages
Actually my wireless works better than my eth0
07:00.0 Ethernet controller : Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express [14e4:1713] (rev 02)
Subsystem: Lenovo IdeaPad S10e [17aa:3a23]
Kernel driver in use: tg3
Well, it seems more easy to boot with kernel 2.6.33 than I thought it would be.
now booted with:
I did not change anything else and it seems that there is no improvement in performance! :’(
I don’t know what to try next…
I tried that repository kernel-2.6.33-34 but rolled back to 2.6.33-6-desktop from: Index of /factory/repo/oss
Earlier I mentioned no improvement with this kernel but I was wrong! The performance is 2~10x better:
- download > 1,5~2,0 Mbyte/s (+/-15Mbit/s)
- upload > 1.0~1,5 Mbyte/s (+/-11Mbit/s)
Hopefully it does not break any other functionality (3 modules are not loaded at boot)
Sticking to this kernel for now, thanks lwfinger and caf4926!