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#1 2014-11-18 17:44:21

leonax
Member
Registered: 2014-10-20
Posts: 47

Solved network can't get wifi working on acer 571G

Hi I have been fiddlin for past day on the issues with not luck.  The problem was initially I can't get wifi connection to work, ethernet is fine. I am using dhcpcd and networkmanager and the kde plasma applet.  I have also used nmtui.   Networkmanager picks up available connections and I have entered correct password but no good.  Can't get wifi activated.  Wired connection is fine.   I will give you some details of both hardware and network.

This is an acer aspire 571G with a network controller a qualcomm atheros AR9462 wireless network adaptor.

[laxle@acerlap ~]$ lspci -k |grep Network
03:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01)
---------------------------------------------
[laxle@acerlap ~]$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp2s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ether b8:88:e3:0e:34:5a brd ff:ff:ff:ff:ff:ff
3: wlp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DORMANT group default qlen 1000
    link/ether 08:3e:8e:13:ac:81 brd ff:ff:ff:ff:ff:ff[laxle@acerlap ~]$ dmesg | grep ath9k
[   10.765254] ath9k 0000:03:00.0 wlp3s0: renamed from wlan0
-----------------------------
[laxle@acerlap ~]$ dmesg | grep ath9k
[   10.765254] ath9k 0000:03:00.0 wlp3s0: renamed from wlan0
--------------------------------------

[laxle@acerlap ~]$ lsmod
Module                  Size  Used by
ctr                    12927  0
ccm                    17534  0
bbswitch               12878  0
nls_iso8859_1          12461  1
nls_cp437              16553  1
vfat                   21231  1
fat                    61984  1 vfat
coretemp               12820  0
intel_rapl             17356  0
joydev                 17063  0
x86_pkg_temp_thermal    12951  0
intel_powerclamp       17122  0
mousedev               17272  0
ath3k                  12685  0
kvm_intel             143245  0
arc4                   12536  2
kvm                   421519  1 kvm_intel
ath9k                 147321  0
ecb                    12737  1
btusb                  29911  0
ath9k_common           21746  1 ath9k
ath9k_hw              424382  2 ath9k_common,ath9k
bluetooth             402850  3 ath3k,btusb
ath                    26067  3 ath9k_common,ath9k,ath9k_hw
crct10dif_pclmul       13394  0
crc32_pclmul           12915  0
crc32c_intel           21809  0
mac80211              604448  1 ath9k
ghash_clmulni_intel    12978  0
aesni_intel           163855  1
snd_hda_codec_hdmi     49213  1
aes_x86_64             16719  1 aesni_intel
cfg80211              445286  4 ath,ath9k_common,ath9k,mac80211
lrw                    12757  1 aesni_intel
uvcvideo               78952  0
tg3                   164576  0
videobuf2_vmalloc      12816  1 uvcvideo
videobuf2_memops       12519  1 videobuf2_vmalloc
videobuf2_core         47827  1 uvcvideo
v4l2_common            12995  1 videobuf2_core
ptp                    17692  1 tg3
pps_core               17225  1 ptp
videodev              135040  3 uvcvideo,v4l2_common,videobuf2_core
mei_me                 17900  0
acer_wmi               17603  0
snd_hda_codec_realtek    67469  1
sparse_keymap          12818  1 acer_wmi
rfkill                 18867  4 cfg80211,acer_wmi,bluetooth
snd_hda_codec_generic    63126  1 snd_hda_codec_realtek
media                  18365  2 uvcvideo,videodev
gf128mul               12970  1 lrw
iTCO_wdt               12831  0
libphy                 32315  1 tg3
iTCO_vendor_support    12649  1 iTCO_wdt
i915                  905750  3
glue_helper            12649  1 aesni_intel
hwmon                  12930  2 tg3,coretemp
ablk_helper            12572  1 aesni_intel
drm_kms_helper         80934  1 i915
drm                   259106  5 i915,drm_kms_helper
psmouse               107214  0
evdev                  21544  16
cryptd                 18553  3 ghash_clmulni_intel,aesni_intel,ablk_helper
pcspkr                 12595  0
mac_hid                12633  0
serio_raw              12849  0
mei                    75079  1 mei_me
intel_gtt              17848  1 i915
i2c_algo_bit           12744  1 i915
i2c_i801               16965  0
i2c_core               50152  7 drm,i915,i2c_i801,drm_kms_helper,i2c_algo_bit,v4l2_common,videodev
battery                17452  0
ac                     12715  0
lpc_ich                20768  0
snd_hda_intel          26387  2
snd_hda_controller     26938  1 snd_hda_intel
shpchp                 35210  0
button                 12953  1 i915
video                  18043  2 i915,acer_wmi
snd_hda_codec         108536  5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
snd_hwdep              17244  1 snd_hda_codec
snd_pcm                88487  4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_timer              26614  1 snd_pcm
snd                    73436  12 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
soundcore              13031  2 snd,snd_hda_codec
processor              27777  0
wmi                    17339  1 acer_wmi
sch_fq_codel           17343  10
nfs                   208524  0
lockd                  87318  1 nfs
sunrpc                249295  2 nfs,lockd
fscache                53701  1 nfs
ext4                  501833  1
crc16                  12343  2 ext4,bluetooth
mbcache                17171  1 ext4
jbd2                   86417  1 ext4
sd_mod                 44398  3
sr_mod                 21903  0
crc_t10dif             12431  1 sd_mod
cdrom                  47479  1 sr_mod
crct10dif_common       12356  2 crct10dif_pclmul,crc_t10dif
atkbd                  22254  0
libps2                 12739  2 atkbd,psmouse
ahci                   33291  2
libahci                27158  1 ahci
libata                181518  2 ahci,libahci
sdhci_pci              22095  0
ehci_pci               12512  0
xhci_hcd              157068  0
sdhci                  39043  1 sdhci_pci
ehci_hcd               69939  1 ehci_pci
led_class              12859  3 ath9k,sdhci,acer_wmi
scsi_mod              147543  3 libata,sd_mod,sr_mod
mmc_core              110434  2 sdhci,sdhci_pci
usbcore               199381  6 ath3k,btusb,uvcvideo,ehci_hcd,ehci_pci,xhci_hcd
usb_common             12440  1 usbcore
i8042                  18002  2 acer_wmi,libps2
serio                  18282  6 serio_raw,atkbd,i8042,psmouse





I would appreciate any help and let me know if you what info you need.  Thanks

Last edited by leonax (2014-11-19 23:15:09)

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#2 2014-11-18 23:37:25

leonax
Member
Registered: 2014-10-20
Posts: 47

Re: Solved network can't get wifi working on acer 571G

I amended the above post because I thought it was a hostnaming problem but this has been rectified so I deleted a lot of stuff about that.

Re the wifi problem I tried to install the backport-patch from aur but there were errors about a config file so i gave up on that one. I read somewhere about blacklisting the acer_wmi modules maybe I will try that.

Couple things I tried
[laxle@acerlap ~]$ iw dev
phy#0
        Interface wlp3s0
                ifindex 3
                wdev 0x1
                addr 08:3e:8e:13:ac:81
                type managed
[laxle@acerlap ~]$ iw wlp3s0 scan | grep SSID
command failed: Operation not permitted (-1)
[laxle@acerlap ~]$ sudo iw wlp3s0 scan | grep SSID
[sudo] password for laxle:
        SSID:xxxxxxxxxxxxx
        SSID: xxxxxxxxxxxxx
        SSID: xxxxxxxxxx
        SSID: xxxxxxxxxxx
        SSID: xxxxxxxxxxxxxxx

So it seems the wifi device is working somewhat

Last edited by leonax (2014-11-18 23:54:53)

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#3 2014-11-19 23:23:53

leonax
Member
Registered: 2014-10-20
Posts: 47

Re: Solved network can't get wifi working on acer 571G

See my other post on this thread wpa supplicant error on /dev/fd/63.  I went back to basics removed all networkmanager etc and followed the wiki wireless network.  Using wpa_supplicant.  Wifi is now up and I am writing this from the acer wifi.  So I have discovered wifi works.  thats a relief.  I now have to get it going on networkmanager or some automatic network manager.  Now how to do this and is it going to take another few days.  One thing i learnt so far is the wiki's are ok but very unclear for a newbie and one wike leads on to another. 

Please be patient with newbies!

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#4 2014-11-20 21:09:49

leonax
Member
Registered: 2014-10-20
Posts: 47

Re: Solved network can't get wifi working on acer 571G

After another day of trying I think I have NetworkManager working but not sure how good, especially when I don't have a clue what I am doing I have read, re read wireless and networkmanager wikis and it was not until I looked for a step by step guide that I found this http://evilshit.wordpress.com/2012/09/1 … th-gnome3/.  Although for gnome it is much the same for kde where you install kde plasma nm-applet.  In this article it did specically state to remove all dhcpcd services. 
In the NetworkManager wiki I did state " Note: You must ensure that no other service that wants to configure the network is running; in fact, multiple networking services will conflict. You can find a list of the currently running services with systemctl --type=service and then stop them."  However it was not until I read the evilshit article that I found out dhcpcd had to be removed.  For newbies wikis need to be more specific.  Enspecially I think  setting up ethernet and wireless connections.

Last edited by leonax (2014-11-20 21:11:57)

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