Arch Linux

Nolhian

Member

Registered: 2011-08-21

Posts: 25

Wifi : RT5390 problem

Hello,

I've installed Arch on my new Asus X301A and ran into a problem with wifi. It's not stable at all and fluctuates in link state / bandwidth until it disconnects at some point. I decided to install the rt5390 driver from aur instead of the rt2x00pci it seems to use by default.
Here's a lsmod :

lsmod | grep "rt"
rt5390sta            1213030  0 
iTCO_vendor_support     1930  1 iTCO_wdt
rt2800pci               9938  0 
rt2800lib              47215  1 rt2800pci
rt2x00pci               5084  1 rt2800pci
rt2x00lib              36328  3 rt2x00pci,rt2800lib,rt2800pci
eeprom_93cx6            2218  1 rt2800pci
mac80211              426350  3 rt2x00lib,rt2x00pci,rt2800lib
cfg80211              177109  2 mac80211,rt2x00lib
crc_ccitt               1364  1 rt2800lib

iwconfig
eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"XX"  
          Mode:Managed  Frequency:2.457 GHz  Access Point: XX:XX:XX:XX:XX:XX   
          Bit Rate=54 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=41/70  Signal level=-69 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:3  Invalid misc:15   Missed beacon:0

I just installed the driver and you can see that it's still using the rt2x00pci one. The signal is not good, there are invalid misc, excessive retries. Then I blacklisted the module rt2800pci and restarted :

iwconfig
eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     Ralink STA  ESSID:"XX"  Nickname:"RT2860STA"
          Mode:Managed  Frequency=2.457 GHz  Access Point: XX:XX:XX:XX:XX:XX   
          Bit Rate=135 Mb/s   
          RTS thr:off   Fragment thr:off
          Link Quality=76/100  Signal level:-62 dBm  Noise level:-70 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

Now the Link quality is quite good and so is the bitrate. The disturbing thing is the "RT2860STA" nickname, I did a lsmod :

lsmod | grep rt
iTCO_vendor_support     1930  1 iTCO_wdt
rt5390sta            1213030  1 

Now only rt5390sta is loaded. So it seems that it will work. Except that whenever I start using the connection ( by using a browser or doing a pacman -Sy for example ) I get a kernel panic. I tried loading these modules by hand : eeprom_93cx6, mac80211, cfg80211 and crc_ccitt because they were previously loaded with the default driver but same result.

Any idea of what is going on ?

Thanks in advance,
Nolhian

Last edited by Nolhian (2013-01-16 23:53:13)

Nolhian

Member

Registered: 2011-08-21

Posts: 25

Re: Wifi : RT5390 problem

Here's what I always get after a few seconds surfing :

Screenshot