View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0015938||CentOS-7||kernel||public||2019-03-20 20:17||2019-04-30 20:58|
|Target Version||Fixed in Version|
|Summary||0015938: problems with wifi|
|Description||Since update to CentOS 7.6 I'm having issues with the wifi on my laptop with a Qualcomm Atheros QCA6174 wlan adapter.|
The wifi doesn't start automatically anymore and cannot be controlled with the gnome-control-center.
In gnome-control-center there is the message: "No Wi-Fi Adapter Found". Switching the ON/OFF switch to ON, it will go back immedeatly to OFF, but
the wlan will start anyway. There is no way to select another network or to put it into flight modus.
Via commandline it can be started with 'nmcli r wifi on' too.
But 'nmcli r wifi' always shows: WIFI disabled.
(To stop it, I do: 'rmmod ath10k_pci')
With older kernels (for example 3.10.0-862.11.6) and leaving everything unchanged, wifi and gnome-control-center works fine.
|Steps To Reproduce||Boot with kernel 3.10.0-957.10.1.el7.x86_64|
|Tags||No tags attached.|
|I am having the "exact" same problem with the Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01) .|
|I have a similar problem with Realtek wifi adapter.|
In my case the problems seem to be related to my specific model of laptop acer aspire v3-372.
It is not possible to "rfkill unblock" the acer-wireless, because wmidev_evaluate_method() always returns with error
This can be changed if one patches wmi.c (linux-3.10.0-957.10.1.el7.x86_64):
< if (block->instance_count <= instance)
> if (block->instance_count < instance)
Another workaround is 'rmmod acer-wmi' or to blacklist acer-wmi.
Then everything works for me as in CentOS 7.5.
However, I didn't succeed to make the rfkill-switch (Fn+F3) work. But this didn't work in previous versions either.