Hi, I'm having trouble getting the wifi working on Acer Travelmate 2450 which supposedly uses ath5kThe driver was working fine on Ubuntu 9.10, but stopped working as soon as we upgraded the machine to 11.10



What we've tried so far is to blacklist the ath5k driver in /etc/modprobe.d/blacklist.conf and setup ndiswrapper using a windows XP driver for it. Doing this, we manage to see the wifi networks, but can't connect to any of them (using the KDE network manager).



After blacklisting the ndiswrapper, restarting again and trying to svn checkout the latest version of madwifi and doing a make && make install, there was no trace of wifi on the system whatsoever.



Have also installe wicd to see if it makes config easier, but no luck.I case you're wondering, the wifi is working, currently running my macbook via the wifi, just can't the Acer note book to connect via wifi.



For the last 4 days, we've tried about every blog article on the ah5k and ath9k we could find and still it's a problem.
lspci dump: *00:00.0 Host bridge: ATI Technologies Inc Device 5a31 (rev 01)

00:01.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller (rev 80)00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller (rev 80)

00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host Controller (rev 80)00:14.0 SMBus: ATI Technologies Inc IXP SB400 SMBus Controller (rev 83)00:14.1 IDE interface: ATI Technologies Inc IXP SB400 IDE Controller (rev 80)

00:14.2 Audio device: ATI Technologies Inc IXP SB4x0 High Definition Audio Controller (rev 01)00:14.3 ISA bridge: ATI Technologies Inc IXP SB400 PCI-ISA Bridge (rev 80)00:14.4 PCI bridge: ATI Technologies Inc IXP SB400 PCI-PCI Bridge (rev 80)

01:05.0 VGA compatible controller: ATI Technologies Inc RC410 [Radeon Xpress 200M]09:02.0 Ethernet controller: Atheros Communications Inc. AR2413 802.11bg NIC (rev 01)09:04.0 CardBus bridge: ENE Technology Inc CB1410 Cardbus Controller (rev 01)

09:06.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)

--
Jan Vladimir Mostert
BEngSci


MyCee Technologies

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On Sat, Jan 14, 2012 at 1:32 AM, Jan Mostert <jan.mostert@gmail.com> wrote:
> Hi, I'm having trouble getting the wifi working on Acer Travelmate 2450
> which supposedly uses ath5k
> The driver was working fine on Ubuntu 9.10, but stopped working as soon as
> we upgraded the machine to 11.10

Try installing linux-firmware-nonfree package, remove the blacklists,
and check if it works.

This has been the solution for probably all
the-wireless-is-not-working issues I have seen in this mailing list.


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Did a clean install of Ubuntu 11.10 just to be sure it's not something I've messed up.
First time it booted into Unity, it could see the wireless networks, but just wouldn't connect, rebooted, now there's no wireless connections to connect to.



Reinstalled the non-free drivers with
sudo apt-get install linux-firmware-nonfree
and still nothing to connect to.

iwconfig:

lo******* no wireless extensions.

eth0***** no wireless extensions.



wlan0**** IEEE 802.11bg* ESSIDff/any*
********* Mode:Managed* Access Point: Not-Associated** Tx-Power=20 dBm**
********* Retry* long limit:7** RTS thrff** Fragment thrff
********* Power Managementff


*********


--
Jan Vladimir Mostert
BEngSci

MyCee Technologies



On Sat, Jan 14, 2012 at 5:05 PM, Ioannis Vranos <ioannis.vranos@gmail.com> wrote:


On Sat, Jan 14, 2012 at 4:23 PM, Jan Mostert <jan.mostert@gmail.com> wrote:

> Installed the linux-firmware-nonfree package, removed the blacklisted

> packages and rebooted the machine, still no wireless. Is there maybe

> something else that needs to be done when installing this package?

> I've attached dmesg, don't know if that would be of any use.



I don't know about dmesg, however I think you may use 11.10 Live CD

and see if wireless works with it.



If it works, then it is some configuration issue, which will be fixed

if you do a clean install.







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Jan Mostert wrote:
> Did a clean install of Ubuntu 11.10 just to be sure it's not
> something I've messed up.
> First time it booted into Unity, it could see the wireless networks,
> but just wouldn't connect, rebooted, now there's no wireless
> connections to connect to.
>
> Reinstalled the non-free drivers with
> sudo apt-get install linux-firmware-nonfree
> and still nothing to connect to.

The command

dmesg

should reveal if there is a problem loading the firmware to the wireless
card. Or you could have a look at the file "/var/log/syslog".

> iwconfig:
>
> lo no wireless extensions.
>
> eth0 no wireless extensions.
>
> wlan0 IEEE 802.11bg ESSIDff/any
> Mode:Managed Access Point: Not-Associated Tx-Power=20
> dBm Retry long limit:7 RTS thrff Fragment thrff Power
> Managementff

You could try the command

sudo iwlist wlan0 scan

to check if you can see wireless networks. IIRC, I once had a situation
where network-manager didn't show my AP before I used that command. But
I prefer to use wicd instead of network-manager. Maybe you could try
wicd as well. If you do that, please uninstall network-manager because
otherwise both wicd and nm want to handle the wireless network and both
will fail.


Nils

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Doing a "sudo iwlist wlan0 scan" just says no results found (that's after shutting it down and bringing it up again, otherwise it doesn't scan).

Some snippets of the dmesg output, error message in error log "wlan0: link is not ready":


...

[ * 16.093490] radeon 0000:01:05.0: WB enabled

[ * 16.236585] [drm] Loading R300 Microcode

[ * 16.332310] ath5k 0000:09:02.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21

[ * 16.332396] ath5k 0000:09:02.0: registered as 'phy0'



[ * 17.140419] Bluetooth: Core ver 2.16

...

[ * 17.798978] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'

[ * 17.800970] ath5k phy0: Atheros AR2413 chip found (MAC: 0x78, PHY: 0x45)



[ * 17.819332] [drm] Radeon display connector VGA-1: No monitor connected or invalid EDID

...

[ * 63.310052] *[<c17bf0a9>] ? i386_start_kernel+0xa9/0xaf

[ * 63.310055] handlers:

[ * 63.310063] [<f824d730>] ath5k_intr



[ * 63.310067] Disabling IRQ #21

[ * 63.336507] ADDRCONF(NETDEV_UP): wlan0: link is not ready

[ *136.492264] audit_printk_skb: 21 callbacks suppressed

[ *136.492270] type=1400 audit(1326747240.814:19): apparmor="STATUS" operation="profile_replace" name="/usr/lib/lightdm/lightdm-guest-session-wrapper" pid=1720 comm="apparmor_parser"



[ *136.502258] type=1400 audit(1326747240.822:20): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=1721 comm="apparmor_parser"

[ *136.507816] type=1400 audit(1326747240.826:21): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1721 comm="apparmor_parser"



[ *136.509488] type=1400 audit(1326747240.830:22): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1721 comm="apparmor_parser"



[ *136.525168] type=1400 audit(1326747240.846:23): apparmor="STATUS" operation="profile_replace" name="/usr/bin/evince" pid=1722 comm="apparmor_parser"

[ *136.534893] type=1400 audit(1326747240.854:24): apparmor="STATUS" operation="profile_replace" name="/usr/bin/evince-previewer" pid=1722 comm="apparmor_parser"



[ *136.548906] type=1400 audit(1326747240.870:25): apparmor="STATUS" operation="profile_replace" name="/usr/bin/evince-thumbnailer" pid=1722 comm="apparmor_parser"

[ *136.558563] type=1400 audit(1326747240.878:26): apparmor="STATUS" operation="profile_replace" name="/usr/lib/telepathy/mission-control-5" pid=1724 comm="apparmor_parser"



[ *136.559333] type=1400 audit(1326747240.878:27): apparmor="STATUS" operation="profile_replace" name="/usr/lib/telepathy/telepathy-*" pid=1724 comm="apparmor_parser"

...



[ *137.097854] init: plymouth-stop pre-start process (1852) terminated with status 1

[ *164.072460] ADDRCONF(NETDEV_UP): wlan0: link is not ready

[ *708.838154] ath5k 0000:09:02.0: PCI INT A disabled



[ *761.437495] ath5k 0000:09:02.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21

[ *761.437585] ath5k 0000:09:02.0: registered as 'phy1'

[ *762.152577] ath: EEPROM regdomain: 0x63

[ *762.152583] ath: EEPROM indicates we should expect a direct regpair map



[ *762.152589] ath: Country alpha2 being used: 00

[ *762.152592] ath: Regpair used: 0x63

[ *762.152599] cfg80211: Updating information on frequency 2412 MHz for a 20 MHz width channel with regulatory rule:



[ *762.152604] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152607] cfg80211: Updating information on frequency 2417 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152612] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)



[ *762.152616] cfg80211: Updating information on frequency 2422 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152620] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152624] cfg80211: Updating information on frequency 2427 MHz for a 20 MHz width channel with regulatory rule:



[ *762.152628] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152632] cfg80211: Updating information on frequency 2432 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152636] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)



[ *762.152640] cfg80211: Updating information on frequency 2437 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152645] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152648] cfg80211: Updating information on frequency 2442 MHz for a 20 MHz width channel with regulatory rule:



[ *762.152653] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152656] cfg80211: Updating information on frequency 2447 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152661] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)



[ *762.152664] cfg80211: Updating information on frequency 2452 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152669] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152673] cfg80211: Updating information on frequency 2457 MHz for a 20 MHz width channel with regulatory rule:



[ *762.152677] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152681] cfg80211: Updating information on frequency 2462 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152685] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)



[ *762.152689] cfg80211: Updating information on frequency 2467 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152693] cfg80211: 2457000 KHz - 2482000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152697] cfg80211: Updating information on frequency 2472 MHz for a 20 MHz width channel with regulatory rule:



[ *762.152702] cfg80211: 2457000 KHz - 2482000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152705] cfg80211: Disabling freq 2484 MHz as custom regd has no rule that fits a 20 MHz wide channel

[ *762.154490] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain*



[ *762.157129] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'

[ *762.161704] ath5k phy1: Atheros AR2413 chip found (MAC: 0x78, PHY: 0x45)

[ *763.928517] irq 21: nobody cared (try booting with the "irqpoll" option)



[ *763.928527] Pid: 0, comm: swapper Not tainted 3.0.0-14-generic #23-Ubuntu

[ *763.928531] Call Trace:

[ *763.928543] *[<c151a3f2>] ? printk+0x2d/0x2f

[ *763.928553] *[<c10aad49>] __report_bad_irq+0x29/0xd0



[ *763.928565] *[<f8511dc8>] ? ath5k_hw_is_intr_pending+0x18/0x20 [ath5k]

[ *763.928571] *[<c10ab114>] note_interrupt+0x104/0x150

[ *763.928577] *[<c10a963e>] handle_irq_event_percpu+0x9e/0x200



[ *763.928583] *[<c1026208>] ? default_spin_lock_flags+0x8/0x10

[ *763.928591] *[<c152dd0d>] ? _raw_spin_lock_irqsave+0x2d/0x40

[ *763.928596] *[<c10a97db>] handle_irq_event+0x3b/0x60



[ *763.928601] *[<c10ab850>] ? unmask_irq+0x30/0x30

[ *763.928606] *[<c10ab89e>] handle_fasteoi_irq+0x4e/0xc0

[ *763.928609] *<IRQ> *[<c1535232>] ? do_IRQ+0x42/0xc0

[ *763.928620] *[<c1008818>] ? sched_clock+0x8/0x10



[ *763.928627] *[<c106c84b>] ? sched_clock_local+0xcb/0x1c0

[ *763.928632] *[<c1535170>] ? common_interrupt+0x30/0x38

[ *763.928638] *[<c10600d8>] ? cwq_dec_nr_in_flight+0x48/0x90



[ *763.928645] *[<c12fa8f0>] ? arch_local_irq_enable+0x5/0xb

[ *763.928650] *[<c12fb587>] ? acpi_idle_enter_bm+0x227/0x25e

[ *763.928656] *[<c141064d>] ? cpuidle_idle_call+0x7d/0x240



[ *763.928661] *[<c100175a>] ? cpu_idle+0x8a/0xc0

[ *763.928669] *[<c1500eb5>] ? rest_init+0x5d/0x68

[ *763.928675] *[<c17bf763>] ? start_kernel+0x352/0x358

[ *763.928680] *[<c17bf3a2>] ? pass_bootoption.constprop.2+0xe2/0xe2



[ *763.928685] *[<c17bf0a9>] ? i386_start_kernel+0xa9/0xaf

[ *763.928688] handlers:

[ *763.928696] [<f851d730>] ath5k_intr

[ *763.928699] Disabling IRQ #21

[ *763.972512] ADDRCONF(NETDEV_UP): wlan0: link is not ready



[ *785.852611] ADDRCONF(NETDEV_UP): wlan0: link is not ready--



Jan Vladimir Mostert
BEngSci

MyCee Technologies



On Sun, Jan 15, 2012 at 12:08 PM, Nils Kassube <kassube@gmx.net> wrote:


Jan Mostert wrote:

> Did a clean install of Ubuntu 11.10 just to be sure it's not

> something I've messed up.

> First time it booted into Unity, it could see the wireless networks,

> but just wouldn't connect, rebooted, now there's no wireless

> connections to connect to.

>

> Reinstalled the non-free drivers with

> sudo apt-get install linux-firmware-nonfree

> and still nothing to connect to.



The command



dmesg



should reveal if there is a problem loading the firmware to the wireless

card. Or you could have a look at the file "/var/log/syslog".



> iwconfig:

>

> lo * * * *no wireless extensions.

>

> eth0 * * *no wireless extensions.

>

> wlan0 * * IEEE 802.11bg *ESSIDff/any

> * * * * * Mode:Managed *Access Point: Not-Associated * Tx-Power=20

> dBm Retry *long limit:7 * RTS thrff * Fragment thrff Power

> Managementff



You could try the command



sudo iwlist wlan0 scan



to check if you can see wireless networks. IIRC, I once had a situation

where network-manager didn't show my AP before I used that command. But

I prefer to use wicd instead of network-manager. Maybe you could try

wicd as well. If you do that, please uninstall network-manager because

otherwise both wicd and nm want to handle the wireless network and both

will fail.





Nils



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Would anyone recommend ndiswrapper?--
Jan Vladimir Mostert
BEngSci

MyCee Technologies



On Tue, Jan 17, 2012 at 8:35 AM, Jan Mostert <jan.mostert@gmail.com> wrote:











Doing a "sudo iwlist wlan0 scan" just says no results found (that's after shutting it down and bringing it up again, otherwise it doesn't scan).


Some snippets of the dmesg output, error message in error log "wlan0: link is not ready":


...

[ * 16.093490] radeon 0000:01:05.0: WB enabled

[ * 16.236585] [drm] Loading R300 Microcode

[ * 16.332310] ath5k 0000:09:02.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21

[ * 16.332396] ath5k 0000:09:02.0: registered as 'phy0'




[ * 17.140419] Bluetooth: Core ver 2.16

...

[ * 17.798978] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'

[ * 17.800970] ath5k phy0: Atheros AR2413 chip found (MAC: 0x78, PHY: 0x45)




[ * 17.819332] [drm] Radeon display connector VGA-1: No monitor connected or invalid EDID

...

[ * 63.310052] *[<c17bf0a9>] ? i386_start_kernel+0xa9/0xaf

[ * 63.310055] handlers:

[ * 63.310063] [<f824d730>] ath5k_intr




[ * 63.310067] Disabling IRQ #21

[ * 63.336507] ADDRCONF(NETDEV_UP): wlan0: link is not ready

[ *136.492264] audit_printk_skb: 21 callbacks suppressed

[ *136.492270] type=1400 audit(1326747240.814:19): apparmor="STATUS" operation="profile_replace" name="/usr/lib/lightdm/lightdm-guest-session-wrapper" pid=1720 comm="apparmor_parser"




[ *136.502258] type=1400 audit(1326747240.822:20): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=1721 comm="apparmor_parser"

[ *136.507816] type=1400 audit(1326747240.826:21): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1721 comm="apparmor_parser"




[ *136.509488] type=1400 audit(1326747240.830:22): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1721 comm="apparmor_parser"




[ *136.525168] type=1400 audit(1326747240.846:23): apparmor="STATUS" operation="profile_replace" name="/usr/bin/evince" pid=1722 comm="apparmor_parser"

[ *136.534893] type=1400 audit(1326747240.854:24): apparmor="STATUS" operation="profile_replace" name="/usr/bin/evince-previewer" pid=1722 comm="apparmor_parser"




[ *136.548906] type=1400 audit(1326747240.870:25): apparmor="STATUS" operation="profile_replace" name="/usr/bin/evince-thumbnailer" pid=1722 comm="apparmor_parser"

[ *136.558563] type=1400 audit(1326747240.878:26): apparmor="STATUS" operation="profile_replace" name="/usr/lib/telepathy/mission-control-5" pid=1724 comm="apparmor_parser"




[ *136.559333] type=1400 audit(1326747240.878:27): apparmor="STATUS" operation="profile_replace" name="/usr/lib/telepathy/telepathy-*" pid=1724 comm="apparmor_parser"

...




[ *137.097854] init: plymouth-stop pre-start process (1852) terminated with status 1

[ *164.072460] ADDRCONF(NETDEV_UP): wlan0: link is not ready

[ *708.838154] ath5k 0000:09:02.0: PCI INT A disabled




[ *761.437495] ath5k 0000:09:02.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21

[ *761.437585] ath5k 0000:09:02.0: registered as 'phy1'

[ *762.152577] ath: EEPROM regdomain: 0x63

[ *762.152583] ath: EEPROM indicates we should expect a direct regpair map




[ *762.152589] ath: Country alpha2 being used: 00

[ *762.152592] ath: Regpair used: 0x63

[ *762.152599] cfg80211: Updating information on frequency 2412 MHz for a 20 MHz width channel with regulatory rule:




[ *762.152604] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152607] cfg80211: Updating information on frequency 2417 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152612] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)




[ *762.152616] cfg80211: Updating information on frequency 2422 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152620] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152624] cfg80211: Updating information on frequency 2427 MHz for a 20 MHz width channel with regulatory rule:




[ *762.152628] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152632] cfg80211: Updating information on frequency 2432 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152636] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)




[ *762.152640] cfg80211: Updating information on frequency 2437 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152645] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152648] cfg80211: Updating information on frequency 2442 MHz for a 20 MHz width channel with regulatory rule:




[ *762.152653] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152656] cfg80211: Updating information on frequency 2447 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152661] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)




[ *762.152664] cfg80211: Updating information on frequency 2452 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152669] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152673] cfg80211: Updating information on frequency 2457 MHz for a 20 MHz width channel with regulatory rule:




[ *762.152677] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152681] cfg80211: Updating information on frequency 2462 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152685] cfg80211: 2402000 KHz - 2472000 KHz @ *KHz), (N/A mBi, 2000 mBm)




[ *762.152689] cfg80211: Updating information on frequency 2467 MHz for a 20 MHz width channel with regulatory rule:

[ *762.152693] cfg80211: 2457000 KHz - 2482000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152697] cfg80211: Updating information on frequency 2472 MHz for a 20 MHz width channel with regulatory rule:




[ *762.152702] cfg80211: 2457000 KHz - 2482000 KHz @ *KHz), (N/A mBi, 2000 mBm)

[ *762.152705] cfg80211: Disabling freq 2484 MHz as custom regd has no rule that fits a 20 MHz wide channel

[ *762.154490] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain*




[ *762.157129] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'

[ *762.161704] ath5k phy1: Atheros AR2413 chip found (MAC: 0x78, PHY: 0x45)

[ *763.928517] irq 21: nobody cared (try booting with the "irqpoll" option)




[ *763.928527] Pid: 0, comm: swapper Not tainted 3.0.0-14-generic #23-Ubuntu

[ *763.928531] Call Trace:

[ *763.928543] *[<c151a3f2>] ? printk+0x2d/0x2f

[ *763.928553] *[<c10aad49>] __report_bad_irq+0x29/0xd0




[ *763.928565] *[<f8511dc8>] ? ath5k_hw_is_intr_pending+0x18/0x20 [ath5k]

[ *763.928571] *[<c10ab114>] note_interrupt+0x104/0x150

[ *763.928577] *[<c10a963e>] handle_irq_event_percpu+0x9e/0x200




[ *763.928583] *[<c1026208>] ? default_spin_lock_flags+0x8/0x10

[ *763.928591] *[<c152dd0d>] ? _raw_spin_lock_irqsave+0x2d/0x40

[ *763.928596] *[<c10a97db>] handle_irq_event+0x3b/0x60




[ *763.928601] *[<c10ab850>] ? unmask_irq+0x30/0x30

[ *763.928606] *[<c10ab89e>] handle_fasteoi_irq+0x4e/0xc0

[ *763.928609] *<IRQ> *[<c1535232>] ? do_IRQ+0x42/0xc0

[ *763.928620] *[<c1008818>] ? sched_clock+0x8/0x10




[ *763.928627] *[<c106c84b>] ? sched_clock_local+0xcb/0x1c0

[ *763.928632] *[<c1535170>] ? common_interrupt+0x30/0x38

[ *763.928638] *[<c10600d8>] ? cwq_dec_nr_in_flight+0x48/0x90




[ *763.928645] *[<c12fa8f0>] ? arch_local_irq_enable+0x5/0xb

[ *763.928650] *[<c12fb587>] ? acpi_idle_enter_bm+0x227/0x25e

[ *763.928656] *[<c141064d>] ? cpuidle_idle_call+0x7d/0x240




[ *763.928661] *[<c100175a>] ? cpu_idle+0x8a/0xc0

[ *763.928669] *[<c1500eb5>] ? rest_init+0x5d/0x68

[ *763.928675] *[<c17bf763>] ? start_kernel+0x352/0x358

[ *763.928680] *[<c17bf3a2>] ? pass_bootoption.constprop.2+0xe2/0xe2




[ *763.928685] *[<c17bf0a9>] ? i386_start_kernel+0xa9/0xaf

[ *763.928688] handlers:

[ *763.928696] [<f851d730>] ath5k_intr

[ *763.928699] Disabling IRQ #21

[ *763.972512] ADDRCONF(NETDEV_UP): wlan0: link is not ready




[ *785.852611] ADDRCONF(NETDEV_UP): wlan0: link is not ready--



Jan Vladimir Mostert
BEngSci

MyCee Technologies



On Sun, Jan 15, 2012 at 12:08 PM, Nils Kassube <kassube@gmx.net> wrote:



Jan Mostert wrote:

> Did a clean install of Ubuntu 11.10 just to be sure it's not

> something I've messed up.

> First time it booted into Unity, it could see the wireless networks,

> but just wouldn't connect, rebooted, now there's no wireless

> connections to connect to.

>

> Reinstalled the non-free drivers with

> sudo apt-get install linux-firmware-nonfree

> and still nothing to connect to.



The command



dmesg



should reveal if there is a problem loading the firmware to the wireless

card. Or you could have a look at the file "/var/log/syslog".



> iwconfig:

>

> lo * * * *no wireless extensions.

>

> eth0 * * *no wireless extensions.

>

> wlan0 * * IEEE 802.11bg *ESSIDff/any

> * * * * * Mode:Managed *Access Point: Not-Associated * Tx-Power=20

> dBm Retry *long limit:7 * RTS thrff * Fragment thrff Power

> Managementff



You could try the command



sudo iwlist wlan0 scan



to check if you can see wireless networks. IIRC, I once had a situation

where network-manager didn't show my AP before I used that command. But

I prefer to use wicd instead of network-manager. Maybe you could try

wicd as well. If you do that, please uninstall network-manager because

otherwise both wicd and nm want to handle the wireless network and both

will fail.





Nils



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Sorry for the late reply.

Jan Mostert wrote:
> Doing a "sudo iwlist wlan0 scan" just says no results found (that's
> after shutting it down and bringing it up again, otherwise it
> doesn't scan).
>
> Some snippets of the dmesg output, error message in error log "wlan0:
> link is not ready":

> [ 16.332310] ath5k 0000:09:02.0: PCI INT A -> GSI 21 (level, low)
> -> IRQ 21
> [ 16.332396] ath5k 0000:09:02.0: registered as 'phy0'


> [ 762.161704] ath5k phy1: Atheros AR2413 chip found (MAC: 0x78, PHY:
> 0x45)
> [ 763.928517] irq 21: nobody cared (try booting with the "irqpoll"
> option)

> [ 763.928531] Call Trace:
> [ 763.928543] [<c151a3f2>] ? printk+0x2d/0x2f
> [ 763.928553] [<c10aad49>] __report_bad_irq+0x29/0xd0
> [ 763.928565] [<f8511dc8>] ? ath5k_hw_is_intr_pending+0x18/0x20
> [ath5k]

To me it looks like a bug in the ath5k module. The module registered
IRQ21 for ath5k and then doesn't handle that IRQ for some reason. I
suppose that is the reason why you can't use your wifi. I think you
should report this bug:
<https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies>.

Until this problem is resolved, you could try ndiswrapper (as you
suggested in the other mail) if you have the Windows driver for that
Atheros card. Or you could try the kernel of the upcoming 12.04 version.
Perhaps the bug is resolved there already. You can find that kernel
here:
<http://packages.ubuntu.com/search?keywords=linux-image&searchon=names&suite=precise&section=all>


Nils

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