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waterloo2005
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PostPosted: Sun Aug 18, 2013 3:47 pm    Post subject: can not connect internet with usb wireless card Reply with quote

My usb wireless card 's module is ath9k_htc. Below is dmesg output.
I have installed linux-firmware-20130728 .
I use xfce 4.10 and wicd.
What is the matter?
Thanks
Code:
    [ 8.186628] ath9k_htc 2-1.3.4:1.0: usb_probe_interface
    [ 8.186636] ath9k_htc 2-1.3.4:1.0: usb_probe_interface - got id
    [ 8.186656] usb 2-1.3.4: ath9k_htc: Firmware htc_7010.fw requested
    [ 8.186690] usbcore: registered new interface driver ath9k_htc
    [ 8.343761] usb 2-1.3.4: ath9k_htc: Transferred FW: htc_7010.fw, size: 72992
    [ 8.404775] ath9k_htc 2-1.3.4:1.0: ath9k_htc: HTC initialized with 45 credits
    [ 8.532972] ath9k_htc 2-1.3.4:1.0: ath9k_htc: FW Version: 1.3
    [ 8.532975] ath: EEPROM regdomain: 0x809c
    [ 8.532976] ath: EEPROM indicates we should expect a country code
    [ 8.532978] ath: doing EEPROM country->regdmn map search
    [ 8.532979] ath: country maps to regdmn code: 0x52
    [ 8.532980] ath: Country alpha2 being used: CN
    [ 8.532981] ath: Regpair used: 0x52
    [ 8.533203] ieee80211 phy1: Atheros AR9287 Rev:2
    [ 8.694189] systemd-udevd[363]: renamed network interface wlan0 to wlp0s29u1u3u4

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NeddySeagoon
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PostPosted: Sun Aug 18, 2013 9:30 pm    Post subject: Reply with quote

waterloo2005,

udev is the matter.
Code:
[ 8.694189] systemd-udevd[363]: renamed network interface wlan0 to wlp0s29u1u3u4

udev has renamed your wlan0 to wlp0s29u1u3u4. Worse, its name will depend on the USB port that you plug the WiFi into.

Add net.ifnames=0 to the kernel line in grub.conf to keep the old kernel allocated names.
If you use wired networking now, your wired interface will revert to eth0 too.
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waterloo2005
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PostPosted: Mon Aug 19, 2013 2:37 am    Post subject: Reply with quote

NeddySeagoon wrote:
waterloo2005,

udev is the matter.
Code:
[ 8.694189] systemd-udevd[363]: renamed network interface wlan0 to wlp0s29u1u3u4

udev has renamed your wlan0 to wlp0s29u1u3u4. Worse, its name will depend on the USB port that you plug the WiFi into.

Add net.ifnames=0 to the kernel line in grub.conf to keep the old kernel allocated names.
If you use wired networking now, your wired interface will revert to eth0 too.


Thanks first.
In wicd, I can not find any wireless connection point. I think the drive of usb wireless card does not take effect.
How to do with it ?
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NeddySeagoon
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PostPosted: Mon Aug 19, 2013 7:46 pm    Post subject: Reply with quote

waterloo2005,

Its possible for your interface to exist but not work. Please post your dmesg output.
You can put it into a file with
Code:
dmesg > dmesg.txt
then post the file dmesg.txt.

If you are using wired networking then wgetpaste is your friend.
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waterloo2005
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PostPosted: Tue Aug 20, 2013 3:03 pm    Post subject: Reply with quote

NeddySeagoon wrote:
waterloo2005,

Its possible for your interface to exist but not work. Please post your dmesg output.
You can put it into a file with
Code:
dmesg > dmesg.txt
then post the file dmesg.txt.

If you are using wired networking then wgetpaste is your friend.


ath9k_htc is module for usb wireless card. ath9k is module for pci wireless card which works ok.

This is dmesg after I detach and attach usb wireless card .
https://dpaste.de/NPbIp/

Thanks
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NeddySeagoon
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PostPosted: Tue Aug 20, 2013 9:14 pm    Post subject: Reply with quote

waterloo2005,

Look at the very last line in your dmesg post.
Please try the net.ifnames=0 fix I suggested before.

The good news is that there are no messages about firmware not being loaded, so I would expect your inteface to work.
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waterloo2005
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PostPosted: Wed Aug 21, 2013 8:21 am    Post subject: Reply with quote

NeddySeagoon wrote:
waterloo2005,

Look at the very last line in your dmesg post.
Please try the net.ifnames=0 fix I suggested before.

The good news is that there are no messages about firmware not being loaded, so I would expect your inteface to work.

After using net.ifnames=0, pci wireless card does not work , too. In 'ifconfig' command , only find 'lo'.
Thanks
Code:
$ ifconfig
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 4  bytes 240 (240.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4  bytes 240 (240.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

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