Asus x501a rt3970 wireless chip problem (kernel panic)

[jonny3010]

i have a Asus x501a rt3970 wireless chip and i installed thier rt2860 driver as the wifi driver using rt2800pci build was not very good bad signal etc. i went though the read me and compiled it etc and now i have it installed (rt2860) and working. but when the wifi chip gets a little bit of load i get kernel panic ive tryed this with ubuntu 12.10 and linux mint 14.

Does any know now how to fix this?

Many Thanks
Jonny

[chili555]

The driver rt2800pci is built in to the kernel by default in 12.10. There is no reason to compile anything. Let's do some diagnostics. Please run and post:

lspci -nn | grep 0280
lsmod | grep rt2

Thanks.

[jonny3010]

The driver rt2800pci is built in to the kernel by default in 12.10. There is no reason to compile anything. Let's do some diagnostics. Please run and post:

lspci -nn | grep 0280
lsmod | grep rt2

Thanks.

i reinstalled ubuntu as it was not use able at all. but if im near routor i get get alright wifi. i tryed the power managment trick and no luck but it did work on a linux mint live but when i installed linux mint then did it nothing happened :9

02:00.0 Network controller [0280]: Ralink corp. RT5390 Wireless 802.11n 1T/1R PCIe [1814:5390]




rt2800pci 18528 0
rt2800lib 58685 1 rt2800pci
crc_ccitt 12667 1 rt2800lib
rt2x00pci 14475 1 rt2800pci
rt2x00lib 54891 3 rt2800pci,rt2800lib,rt2x00pci
mac80211 539908 3 rt2800lib,rt2x00pci,rt2x00lib
cfg80211 206566 2 rt2x00lib,mac80211
eeprom_93cx6 13302 1 rt2800pci

with the rt2800pci i get this when about 2 meters away from the routor

wlan0 IEEE 802.11bgn ESSID:"Proud"
Mode:Managed Frequency:2.412 GHz Access Point: AC:E2:15:55:1C:EC
Bit Rate=81 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thrff Fragment thrff
Power Managementff
Link Quality=53/70 Signal level=-57 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:7 Invalid misc:0 Missed beacon:0

but the bit rate goes down to 1 all the time

wlan0 IEEE 802.11bgn ESSID:"Proud"
Mode:Managed Frequency:2.412 GHz Access Point: AC:E2:15:55:1C:EC
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thrff Fragment thrff
Power Managementff
Link Quality=41/70 Signal level=-69 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:8 Invalid misc:0 Missed beacon:0

wifi fine on my windows install

[chili555]

Is there any improvement with N speeds turned off in the router?

[jonny3010]

Is there any improvement with N speeds turned off in the router?

wlan0 IEEE 802.11bgn ESSID:"Proud"
Mode:Managed Frequency:2.412 GHz Access Point: AC:E2:15:55:1C:EC
Bit Rate=18 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thrff Fragment thrff
Power Managementff
Link Quality=39/70 Signal level=-71 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:3 Invalid misc:14 Missed beacon:0

i changed the routor to G and now it get that in my room i was getting 1 MBPS. also my signal is 2 bars i get more on N becuase the range is better on N

2 meters form the routor i get 3bars and 24 or 36

so now it does not drop to 1MBPS and its faster but i should get 54 and full bars near routor

[chili555]

Let's try a driver parameter:

sudo modprobe -r rt2800pci
sudo modprobe rt2800pci nohwcrypt=Y

Any improvement?

also my signal is 2 bars i get more on N becuase the range is better on N

...but with an occasional kernel panic??

[jonny3010]

routor still on G and no change

wlan0 IEEE 802.11bgn ESSID:"Proud"
Mode:Managed Frequency:2.412 GHz Access Point: AC:E2:15:55:1C:EC
Bit Rate=24 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thrff Fragment thrff
Power Managementff
Link Quality=57/70 Signal level=-53 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:1 Invalid misc:3 Missed beacon:0

[chili555]

'No change' meaning what? Meaning the number you read here seems insufficient?

wlan0 IEEE 802.11bgn ESSID:"Proud"
Mode:Managed Frequency:2.412 GHz Access Point: AC:E2:15:55:1C:EC
Bit Rate=24 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thrff Fragment thrff
Power Managementff

Or meaning that the connection is slow, unstable and causes kernel panics under load? How long did you try it?

[jonny3010]

no change on anything, still the same as before

[jonny3010]

works really well on the newer rt2860 driver but i get kernel panic when i load pages or using wget. so i reinstalled like i said