*** This bug is a duplicate of bug 147134 ***
    https://bugs.launchpad.net/bugs/147134

Public bug reported:

Hi there, the acx driver isn't working for me, with a USR5416 pci turbo
wireless card. The modules loads and it quite "works", but the log files
(/var/log/syslog) if full of these:


Sep 30 10:36:29 patrick-desktop kernel: [ 1376.108000] wlan0: tx error 0x20, 
buf 06! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:37 patrick-desktop kernel: [ 1383.528000] wlan0: rx: 143 DUPs in 
544 packets received in 10 secs
Sep 30 10:36:38 patrick-desktop kernel: [ 1385.584000] wlan0: tx error 0x20, 
buf 12! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1386.840000] wlan0: tx error 0x20, 
buf 04! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1386.872000] wlan0: several excessive 
Tx retry errors occurred, attempting to recalibrate radio. Radio drift might be 
caused by increasing card temperature, please check the card before it's too 
late!
Sep 30 10:36:40 patrick-desktop kernel: [ 1386.872000] wlan0: tx error 0x20, 
buf 05! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1386.872000] wlan0: less than 5 
minutes since last radio recalibration, not recalibrating (maybe card is too 
hot?)
Sep 30 10:36:40 patrick-desktop kernel: [ 1386.884000] wlan0: tx error 0x20, 
buf 06! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.012000] wlan0: tx error 0x20, 
buf 09! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.012000] wlan0: tx error 0x20, 
buf 10! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.012000] wlan0: several excessive 
Tx retry errors occurred, attempting to recalibrate radio. Radio drift might be 
caused by increasing card temperature, please check the card before it's too 
late!
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.012000] wlan0: tx error 0x20, 
buf 11! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.012000] wlan0: tx error 0x20, 
buf 12! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.012000] wlan0: less than 5 
minutes since last radio recalibration, not recalibrating (maybe card is too 
hot?)
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.248000] wlan0: tx error 0x20, 
buf 13! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.248000] wlan0: tx error 0x20, 
buf 14! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.248000] wlan0: several excessive 
Tx retry errors occurred, attempting to recalibrate radio. Radio drift might be 
caused by increasing card temperature, please check the card before it's too 
late!
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.248000] wlan0: tx error 0x20, 
buf 15! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.248000] wlan0: tx error 0x20, 
buf 00! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.248000] wlan0: less than 5 
minutes since last radio recalibration, not recalibrating (maybe card is too 
hot?)
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.364000] wlan0: tx error 0x20, 
buf 01! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.364000] wlan0: tx error 0x20, 
buf 04! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.448000] wlan0: several excessive 
Tx retry errors occurred, attempting to recalibrate radio. Radio drift might be 
caused by increasing card temperature, please check the card before it's too 
late!
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.448000] disabling above message
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.448000] wlan0: tx error 0x20, 
buf 05! (excessive Tx retries due to either distance too high or unable to Tx 
or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 
'retry')
Sep 30 10:36:40 patrick-desktop kernel: [ 1387.448000] wlan0: less than 5 
minutes since last radio recalibration, not recalibrating (maybe card is too 
hot?)

Sep 30 10:36:56 patrick-desktop kernel: [ 1403.312000] wlan0: tx error 0x20, 
buf 14!
Sep 30 10:36:56 patrick-desktop kernel: [ 1403.408000] wlan0: tx error 0x20, 
buf 15!
Sep 30 10:36:56 patrick-desktop kernel: [ 1403.424000] wlan0: tx error 0x20, 
buf 00!
Sep 30 10:36:56 patrick-desktop kernel: [ 1403.444000] wlan0: tx error 0x20, 
buf 01!
Sep 30 10:36:56 patrick-desktop kernel: [ 1403.568000] wlan0: tx error 0x20, 
buf 04!
Sep 30 10:36:56 patrick-desktop kernel: [ 1403.580000] wlan0: tx error 0x20, 
buf 05!
Sep 30 10:36:57 patrick-desktop kernel: [ 1403.700000] wlan0: rx: 239 DUPs in 
464 packets received in 10 secs
Sep 30 10:36:57 patrick-desktop kernel: [ 1403.724000] wlan0: tx error 0x20, 
buf 06!
Sep 30 10:36:57 patrick-desktop kernel: [ 1403.724000] wlan0: tx error 0x20, 
buf 09!
Sep 30 10:36:57 patrick-desktop kernel: [ 1403.816000] wlan0: tx error 0x20, 
buf 10!
Sep 30 10:36:57 patrick-desktop kernel: [ 1403.816000] wlan0: tx error 0x20, 
buf 11!
Sep 30 10:36:57 patrick-desktop kernel: [ 1403.816000] wlan0: tx error 0x20, 
buf 12!
Sep 30 10:36:57 patrick-desktop kernel: [ 1403.816000] wlan0: tx error 0x20, 
buf 13!
Sep 30 10:36:57 patrick-desktop kernel: [ 1404.112000] wlan0: tx error 0x20, 
buf 14!
Sep 30 10:36:57 patrick-desktop kernel: [ 1404.112000] wlan0: tx error 0x20, 
buf 15!
Sep 30 10:36:57 patrick-desktop kernel: [ 1404.112000] wlan0: tx error 0x20, 
buf 00!
Sep 30 10:36:57 patrick-desktop kernel: [ 1404.592000] wlan0: tx error 0x20, 
buf 01!
Sep 30 10:36:57 patrick-desktop kernel: [ 1404.592000] wlan0: tx error 0x20, 
buf 04!
Sep 30 10:36:57 patrick-desktop kernel: [ 1404.660000] wlan0: tx error 0x20, 
buf 05!
Sep 30 10:36:57 patrick-desktop kernel: [ 1404.660000] wlan0: tx error 0x20, 
buf 06!

sounds quite bad. I've tried different firmware versions and the same
happens.

** Affects: ubuntu
     Importance: Undecided
         Status: New

-- 
ACX driver working badly
https://bugs.launchpad.net/bugs/147133
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