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Thread: Asus x501a rt3970 wireless chip problem (kernel panic)

  1. #1
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    Asus x501a rt3970 wireless chip problem (kernel panic)

    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

  2. #2
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    Re: Asus x501a rt3970 wireless chip problem (kernel panic)

    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:
    Code:
    lspci -nn | grep 0280
    lsmod | grep rt2
    Thanks.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #3
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    Re: Asus x501a rt3970 wireless chip problem (kernel panic)

    Quote Originally Posted by chili555 View Post
    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:
    Code:
    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
    Last edited by jonny3010; March 2nd, 2013 at 06:01 PM.

  4. #4
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    Re: Asus x501a rt3970 wireless chip problem (kernel panic)

    Is there any improvement with N speeds turned off in the router?
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  5. #5
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    Re: Asus x501a rt3970 wireless chip problem (kernel panic)

    Quote Originally Posted by chili555 View Post
    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
    Last edited by jonny3010; March 2nd, 2013 at 06:16 PM.

  6. #6
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    Re: Asus x501a rt3970 wireless chip problem (kernel panic)

    Let's try a driver parameter:
    Code:
    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??
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  7. #7
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    Re: Asus x501a rt3970 wireless chip problem (kernel panic)

    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

  8. #8
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    Re: Asus x501a rt3970 wireless chip problem (kernel panic)

    '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?
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  9. #9
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    Re: Asus x501a rt3970 wireless chip problem (kernel panic)

    no change on anything, still the same as before
    Last edited by jonny3010; March 2nd, 2013 at 06:38 PM.

  10. #10
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    Re: Asus x501a rt3970 wireless chip problem (kernel panic)

    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

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