Re: [Madwifi-users] some help needed: madwifi txpower configuration, checking if it is madwifi bug

[Kestas <sau...@ya...>]

Hello Michael,

1. regarding "iwconfig"
2. experimented:
     2.1 set AP power level to 84mW
     2.2 then put my notebook in greater distance form AP
     2.3 start "ping 192.168.1.1" (my AP)
     2.4.1 if i do "iwconfig ath0 txpower 16" i receive ping replies
     2.4.2 if i do "iwconfig ath0 txpower 9" i don't receive packetsa
     2.4.3 if i do "iwconfig ath0 txpower 16" after i did "iwconfig ath0 
txpower 9", then I start receiving ping again.
     2.5 after some minutes after I changed txpower iwconfig shows that 
txpower is 9dBm, and ping replies stops.
     2.6 "iwconfig ath0 txpower auto" doesn't help(it is 9dBm by default)

3) It is station, Acer Aspire 5112 Turion 64 x2 Notebook with Ubuntu 
7.10 i386, AR5005G (AR2413 radio module) mini-pci wlan card.

root@xxxx:~# dmesg | grep ath
[   16.732000] ath_hal: module license 'Proprietary' taints kernel.
[   16.732000] ath_hal: 0.9.18.0 (AR5210, AR5211, AR5212, RF5111, 
RF5112, RF2413, RF5413)
[   16.944000] ath_pci: 0.9.4.5 (0.9.3.2)
[   17.772000] ath_rate_sample: 1.2 (0.9.3.2)

4)Channel is the same
5)I am not using any encryption(open system), I am not using hostapd.


Maybe there is some stupid power saving, wrong coutry code or regdomain 
setting?

"sysctl" says:
dev.ath.hal.dma_beacon_response_time = 2
dev.ath.hal.sw_beacon_response_time = 10
dev.ath.hal.swba_backoff = 0
dev.ath.debug = 0
dev.ath.countrycode = 0
dev.ath.outdoor = 0
dev.ath.xchanmode = 1
dev.ath.calibrate = 1
dev.wifi0.slottime = 9
dev.wifi0.acktimeout = 48
dev.wifi0.ctstimeout = 48
dev.wifi0.softled = 0
dev.wifi0.ledpin = 0
dev.wifi0.countrycode = 0
dev.wifi0.regdomain = 99
dev.wifi0.debug = 0
dev.wifi0.txantenna = 0
dev.wifi0.rxantenna = 2
dev.wifi0.diversity = 1
dev.wifi0.txintrperiod = 5
dev.wifi0.fftxqmin = 3
dev.wifi0.tkipmic = 1
dev.wifi0.xrpollperiod = 100
dev.wifi0.xrpollcount = 32
dev.wifi0.ackrate = 0








Regards,
Kestas


Michael Taylor wrote:
> Kestas wrote:
>> not using "doth_pwrtgt" or using "doth_pwrtgt = 127" doesn't help..
>> after "iwconfig ath0 txpower 16" txpower is 16dBm only for few minutes, 
>> then it is automatically switched to 9dBm.
>>   
> Can you tell me what you are seeing more precisely:
> 
> 1) How are you verifying the txpower setting was made?
> 2) How are you detecting that it has been changed?
> 3) Is this an AP or station?
> 4) Is the channel the same or has it changed by any chance?
> 5) Are you running wpa_supplicant or hostapd by chance?
> 
> Cheers,
> 
> Mike
> 
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