Re: Doesn't reconnect to wifi after resuming from suspend



On 06.02.2015 18:42, Ferry Toth wrote:
poma wrote:

On 05.02.2015 22:00, Ferry Toth wrote:
poma wrote:

On 05.02.2015 20:12, Ferry Toth wrote:

Would that be after a certain kernel? But I used 14.04 with kernel 3.17
(no problem) and 14.10 with 3.17 (and now 3.18)


See if it can help
https://wireless.wiki.kernel.org/en/users/drivers/ath9k/bugs

Thanks by I don't find my case there.


/etc/systemd/system/ath9k-reload.service
[Unit]
Description=Reload Atheros 802.11n wireless LAN cards driver
After=hibernate.target suspend.target hybrid-sleep.target

[Service]
Type=oneshot
ExecStart=/usr/sbin/modprobe -r ath9k
ExecStart=/usr/sbin/modprobe ath9k

[Install]
WantedBy=hibernate.target suspend.target hybrid-sleep.target


# systemctl enable ath9k-reload.service

# systemctl suspend
          & RESUME

# systemctl hibernate
          & THAW

# systemctl hybrid-sleep
          & RESUME||THAW


Does it work?

Actually no, it doesn't. I already suspected that as I tried other similar 
(non-systemd) scripts that restart stuff on resume.

With this script, it doesn't even autoreconnect on boot (which did work 
before).


"After=hibernate.target suspend.target hybrid-sleep.target"

As you can read, in the mechanism of ath9k-reload.service, it by any means should not affect the 
Soft-Off/boot,
but only Suspend-to-Disk/thaw and/or Suspend-to-RAM/resume.


I am starting to believe that after the drivers go up, an event scan is 
started, and the ath9k incorrectly reports that it is done (but might not 
be, as I have 2.4G and 5G and am trying to reconnect to the 5G).

Just restarting drivers won't fix this (if it is indeed so).

I need a delay after resume and scan, and before the autoconnect starts.


BTW when I do:
lsmod | grep ath

ath9k                 162133  0 
ath9k_common           25638  1 ath9k
ath9k_hw              460416  2 ath9k_common,ath9k
ath                    29397  3 ath9k_common,ath9k,ath9k_hw
mac80211              697212  1 ath9k
ath3k                  13381  0 
cfg80211              520257  4 ath,ath9k_common,ath9k,mac80211
bluetooth             486890  7 bnep,ath3k,btusb,rfcomm



Rather than speculate, try to contact and consult with folks at
http://linuxwireless.sipsolutions.net/en/users/Drivers/ath9k/#Mailing_list
http://vger.kernel.org/vger-lists.html#linux-wireless

Good luck




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