On Fri, Jan 15, 2010 at 2:12 AM, Miklos Vajna <[email protected]> wrote: > Hi, > > I tried asking on #bcm-users, then found the wiki where it's suggested > to report to this list, so I'm doing so. Sorry for the noise on IRC. > > A description of the problem at hand: > > My card works fine when I use it with WPA, however when I try to use it > without any encryption (actually the provider uses MAC-based filtering, > but that's not important), then after the "iwconfig eth0 essid <essid>", > "iwconfig" shows the MAC of the AP, and after about 5 secs "iwconfig" > says it's "Not-Associated". If I run iwconfig eth0 essid again, then > it's usable again for ~5 secs and so on. When the AP goes unassociated, > I see this in dmesg: > > No probe response from AP 00:12:17:d3:87:f5 after 500ms, disconnecting. > > When it happens: > > It happens only in case not using encryption. An other laptop with > ipw2200 driver works fine, so I guess this will be a b43 or firmware > problem. The same card works under Windows XP as well, so I guess it's > not a hardware problem. > > How to reproduce: > > Run "iwconfig eth0 essid <essid>", wait ~5 secs and run "iwconfig" > again. Result: it's unassociated. Expected: to show the MAC of the AP, > etc. > > $ uname -a > Linux s12 2.6.32-fw2 #1 SMP PREEMPT Sat Dec 19 13:56:14 CET 2009 x86_64 > GNU/Linux > > $ sudo lspci -vvn|grep 43 -A7 > 00:00.4 0600: 1106:4353 > Subsystem: 17aa:3889 > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR- FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0, Cache Line Size: 32 bytes > > 00:00.5 0800: 1106:5353 (prog-if 20 [IO(X)-APIC]) > Subsystem: 17aa:388a > -- > 02:00.0 0280: 14e4:4315 (rev 01) > Subsystem: 14e4:04b5 > 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: 32 bytes > Interrupt: pin A routed to IRQ 28 > Region 0: Memory at f5200000 (64-bit, non-prefetchable) [size=16K] > Capabilities: [40] Power Management version 3 > -- > Kernel driver in use: b43-pci-bridge > Kernel modules: ssb > > dmesg: http://frugalware.org/~vmiklos/files/dmesg-s12 > > Wlan configuration, authentication/encryption type: > > b43 from vanilla kernel, no encryption. Firmware is installed as > described at http://linuxwireless.org/en/users/Drivers/b43#fw-b43-lp > > kernel is a distro-packaged vanilla 2.6.32.1. > > Any ideas? > > Thanks! > > _______________________________________________ > Bcm43xx-dev mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/bcm43xx-dev > >
14E4:4315 is an LP-PHY (specifically, for most people,, it is "the" LP-PHY), for which 2.6.32 contains no calibration support, so performance/range problems can be expected. 2.6.33 should have improvements (part of calibration done), and 2.6.34 will (if I have time to do it) have full calibration support. -- Vista: [V]iruses, [I]ntruders, [S]pyware, [T]rojans and [A]dware. :-) _______________________________________________ Bcm43xx-dev mailing list [email protected] https://lists.berlios.de/mailman/listinfo/bcm43xx-dev
