Support LQ: Use code LQ3 and save $3 on Domain Registration
Go Back > Forums > Linux Forums > Linux - Distributions > Slackware
User Name
Slackware This Forum is for the discussion of Slackware Linux.


  Search this Thread
Old 10-08-2012, 08:47 PM   #1
Registered: Sep 2012
Location: São Paulo, Brazil
Distribution: Slackware 14.0
Posts: 33

Rep: Reputation: 17
Help making Atheros AR9287 Chipset with ath9k module work properly with Slackware 14

Hey guys,

These days I started feeling that the wireless connection in my notebook wasn't working correctly, the connection oscillates a lot(especially when I'm using ktorrent). At first I thought my internet provider that was unstable, but when my girlfriend arrived at home I tried with her notebook and everything was fine. Then I tried to ping my router and this was the output(this is when the conection is quite bad, some times the time response is pretty normal, around 1~5 ms):
64 bytes from icmp_req=497 ttl=64 time=4577 ms
64 bytes from icmp_req=498 ttl=64 time=3922 ms
64 bytes from icmp_req=499 ttl=64 time=4179 ms
64 bytes from icmp_req=500 ttl=64 time=3708 ms
64 bytes from icmp_req=501 ttl=64 time=2263 ms
64 bytes from icmp_req=502 ttl=64 time=1266 ms
64 bytes from icmp_req=503 ttl=64 time=1038 ms
64 bytes from icmp_req=504 ttl=64 time=969 ms
64 bytes from icmp_req=505 ttl=64 time=3399 ms
64 bytes from icmp_req=506 ttl=64 time=3740 ms
64 bytes from icmp_req=507 ttl=64 time=4658 ms
64 bytes from icmp_req=508 ttl=64 time=4030 ms
64 bytes from icmp_req=509 ttl=64 time=3294 ms
64 bytes from icmp_req=510 ttl=64 time=3090 ms
64 bytes from icmp_req=511 ttl=64 time=4063 ms
64 bytes from icmp_req=512 ttl=64 time=4382 ms
64 bytes from icmp_req=513 ttl=64 time=3560 ms
64 bytes from icmp_req=514 ttl=64 time=3413 ms
64 bytes from icmp_req=515 ttl=64 time=2330 ms
64 bytes from icmp_req=516 ttl=64 time=1499 ms
64 bytes from icmp_req=517 ttl=64 time=2404 ms
64 bytes from icmp_req=518 ttl=64 time=2295 ms
64 bytes from icmp_req=519 ttl=64 time=1726 ms
64 bytes from icmp_req=520 ttl=64 time=1038 ms
64 bytes from icmp_req=521 ttl=64 time=1324 ms
64 bytes from icmp_req=522 ttl=64 time=2383 ms
64 bytes from icmp_req=523 ttl=64 time=2170 ms
64 bytes from icmp_req=524 ttl=64 time=1861 ms
64 bytes from icmp_req=525 ttl=64 time=1198 ms
64 bytes from icmp_req=526 ttl=64 time=1177 ms
64 bytes from icmp_req=527 ttl=64 time=560 ms
64 bytes from icmp_req=528 ttl=64 time=320 ms
64 bytes from icmp_req=529 ttl=64 time=3111 ms
64 bytes from icmp_req=530 ttl=64 time=3438 ms
64 bytes from icmp_req=531 ttl=64 time=2549 ms
64 bytes from icmp_req=532 ttl=64 time=2295 ms
64 bytes from icmp_req=533 ttl=64 time=1946 ms
64 bytes from icmp_req=534 ttl=64 time=2221 ms
64 bytes from icmp_req=535 ttl=64 time=1553 ms
64 bytes from icmp_req=536 ttl=64 time=1186 ms
64 bytes from icmp_req=537 ttl=64 time=1328 ms
64 bytes from icmp_req=538 ttl=64 time=1584 ms
64 bytes from icmp_req=539 ttl=64 time=1641 ms
64 bytes from icmp_req=540 ttl=64 time=1393 ms
64 bytes from icmp_req=541 ttl=64 time=4914 ms
64 bytes from icmp_req=542 ttl=64 time=6462 ms
64 bytes from icmp_req=543 ttl=64 time=6155 ms
64 bytes from icmp_req=544 ttl=64 time=6083 ms
64 bytes from icmp_req=545 ttl=64 time=4871 ms
64 bytes from icmp_req=546 ttl=64 time=3684 ms
64 bytes from icmp_req=547 ttl=64 time=3093 ms
64 bytes from icmp_req=548 ttl=64 time=2798 ms
64 bytes from icmp_req=549 ttl=64 time=4742 ms
64 bytes from icmp_req=550 ttl=64 time=4396 ms
64 bytes from icmp_req=551 ttl=64 time=3954 ms
64 bytes from icmp_req=552 ttl=64 time=4202 ms
64 bytes from icmp_req=553 ttl=64 time=5065 ms
64 bytes from icmp_req=554 ttl=64 time=4345 ms
64 bytes from icmp_req=555 ttl=64 time=3444 ms
64 bytes from icmp_req=556 ttl=64 time=2465 ms
64 bytes from icmp_req=557 ttl=64 time=58.2 ms
64 bytes from icmp_req=558 ttl=64 time=277 ms
64 bytes from icmp_req=559 ttl=64 time=25.7 ms
64 bytes from icmp_req=560 ttl=64 time=40.6 ms
64 bytes from icmp_req=561 ttl=64 time=482 ms
64 bytes from icmp_req=562 ttl=64 time=1353 ms
64 bytes from icmp_req=563 ttl=64 time=2268 ms
64 bytes from icmp_req=564 ttl=64 time=1932 ms
64 bytes from icmp_req=565 ttl=64 time=1393 ms
64 bytes from icmp_req=566 ttl=64 time=768 ms
64 bytes from icmp_req=567 ttl=64 time=1.94 ms
64 bytes from icmp_req=568 ttl=64 time=49.2 ms
64 bytes from icmp_req=569 ttl=64 time=2505 ms
64 bytes from icmp_req=570 ttl=64 time=1770 ms
64 bytes from icmp_req=571 ttl=64 time=1435 ms
64 bytes from icmp_req=572 ttl=64 time=2030 ms
64 bytes from icmp_req=573 ttl=64 time=2869 ms
64 bytes from icmp_req=574 ttl=64 time=2934 ms
64 bytes from icmp_req=575 ttl=64 time=3875 ms
64 bytes from icmp_req=576 ttl=64 time=2911 ms
64 bytes from icmp_req=577 ttl=64 time=3463 ms
64 bytes from icmp_req=578 ttl=64 time=2707 ms
64 bytes from icmp_req=579 ttl=64 time=1722 ms
After some google research I found that my wireless chipset(AR9287) had some bugs in the newer kernel modules (higher than 2.2.x I guess). In this research I found a lot of fixes, but none of then worked. Here goes some of the ones that I've already tried

rmmod -f acer-wmi
echo "blacklist acer-wmi" >> /etc/modprobe.d/blacklist.conf
sudo ifconfig wlan0 down
sudo rmmod -f ath9k
sudo modprobe ath9k nohwcrypt=1
sudo ifconfig wlan0 up
I've found one( that involved compiling and install an older ath9k module, but I couldn't make things work. When I tried to compile the module I got those errors:
/bin/sh: line 0: [: 38: esperado operador unário
/bin/sh: line 0: test: número excessivo de argumentos
/sbin/modprobe: invalid option -- 'l'
/sbin/modprobe: invalid option -- 'l'
make -C /lib/modules/3.2.29/build M=/mnt/Arquivos/Downloads/compat-wireless-2.6.38-rc4-1 modules
make[1]: Entrando no diretório `/usr/src/linux-3.2.29'
/sbin/modprobe: invalid option -- 'l'
/sbin/modprobe: invalid option -- 'l'
/sbin/modprobe: invalid option -- 'l'
/sbin/modprobe: invalid option -- 'l'
  CC [M]  /mnt/Arquivos/Downloads/compat-wireless-2.6.38-rc4-1/drivers/net/wireless/ath/ath9k/beacon.o
In file included from /mnt/Arquivos/Downloads/compat-wireless-2.6.38-rc4-1/drivers/net/wireless/ath/ath9k/ath9k.h:24:0,
                 from /mnt/Arquivos/Downloads/compat-wireless-2.6.38-rc4-1/drivers/net/wireless/ath/ath9k/beacon.c:17:
/mnt/Arquivos/Downloads/compat-wireless-2.6.38-rc4-1/include/linux/pm_qos_params.h:7:38: fatal error: linux/pm_qos_params.h: Arquivo ou diretório não encontrado
compilation terminated.
make[5]: ** [/mnt/Arquivos/Downloads/compat-wireless-2.6.38-rc4-1/drivers/net/wireless/ath/ath9k/beacon.o] Erro 1
make[4]: ** [/mnt/Arquivos/Downloads/compat-wireless-2.6.38-rc4-1/drivers/net/wireless/ath/ath9k] Erro 2
make[3]: ** [/mnt/Arquivos/Downloads/compat-wireless-2.6.38-rc4-1/drivers/net/wireless/ath] Erro 2
make[2]: ** [/mnt/Arquivos/Downloads/compat-wireless-2.6.38-rc4-1/drivers/net/wireless] Erro 2
make[1]: ** [_module_/mnt/Arquivos/Downloads/compat-wireless-2.6.38-rc4-1] Erro 2
make[1]: Saindo do diretório `/usr/src/linux-3.2.29'
make: ** [modules] Erro 2
so this is it, if anyone could give me some light on this problem I would really appreciate!


PS: the output to some commands

root@DeathStar:/home/raphael $ lspci | grep Network
03:00.0 Network controller: Atheros Communications Inc. AR9287 Wireless Network Adapter (PCI-Express) (rev 01)
root@DeathStar:/home/raphael $ rfkill list all
0: acer-wireless: Wireless LAN
        Soft blocked: no
        Hard blocked: no
1: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
root@DeathStar:/home/raphael/ $ iwconfig wlan0
wlan0     IEEE 802.11bgn  ESSID:"hld3"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: 00:21:29:77:77:43   
          Bit Rate=54 Mb/s   Tx-Power=13 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=49/70  Signal level=-61 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:535  Invalid misc:2710   Missed beacon:0
Old 10-10-2012, 11:04 AM   #2
Registered: Sep 2012
Location: São Paulo, Brazil
Distribution: Slackware 14.0
Posts: 33

Original Poster
Rep: Reputation: 17
Anyone? =(
Old 10-10-2012, 02:27 PM   #3
Registered: May 2010
Location: Stumptown
Distribution: Slackware 14.0/32bit + Xmonad
Posts: 319

Rep: Reputation: 109Reputation: 109
Sometimes it's better to punt...

I have had similar issues with a different 802.11 card, "supported, but not quite well enough", and have found that's it's easier on my nerves and schedule to just replace the little bugger with something solid.

I recommend Intel's 5100 or 5300 agn mini-PCI cards. Less than $10 on the ebay. If it's true about a buggy kernel module, you can either wait to see if it gets fixed, downgrade to 2.2/6.x, or learn to hack the drivers/modules. I prefer the nuclear option ;-) "chuck it!".

Also see here:

Last edited by STDOUBT; 10-10-2012 at 02:33 PM. Reason: Additional info
Old 10-13-2012, 11:22 PM   #4
Registered: Sep 2012
Location: São Paulo, Brazil
Distribution: Slackware 14.0
Posts: 33

Original Poster
Rep: Reputation: 17
It has been some days now and I think the problem is gone. All that i did was pick one of the more recent modules from and installed it. For me the compat-wireless-3.5.4-1 worked pretty well, so I'm sticking with it. My ping average time is 3~10 ms now, and the max time is never higher than 900 ms!



Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Wireless network problem. High unstability using Atheros AR9285 and ath9k module. astro11 Slackware 15 01-21-2014 08:30 AM
[SOLVED] Rosewill RNX-N250PC2 (Atheros AR9287) Wireless N Card Hangs Entire System ZeroDaHero Linux - Networking 2 07-14-2012 12:03 PM
[SOLVED] Atheros AR9287 VisionIncision Slackware 2 07-07-2012 08:19 PM
[SOLVED] could not start hostapd to setup wifi module(having atheros chipset) in AP mode Darshan P Linux - Wireless Networking 1 11-06-2011 11:54 PM
Atheros AR3011 bluetooth and ath3k do not work properly TVT Linux - Hardware 0 10-04-2010 03:57 PM

All times are GMT -5. The time now is 02:41 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration