Wifi issue after sleep

Question

I am running Linux Mint 19 Tara. I cannot understand why but lately my wifi stop working after I resume it from sleep, the only way to make it work is either a reboot or

sudo /etc/init.d/network-manager restart

could you help me in fixing it or implementing a script with such code that would start everytime I resume the laptop?

EDIT:

-linux mint version

-output of lspci -nnk | grep -i network -A 3

03:00.0 Network controller [0280]: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter [168c:0042] (rev 31)
    Subsystem: Dell QCA9377 802.11ac Wireless Network Adapter [1028:1810]
    Kernel driver in use: ath10k_pci
    Kernel modules: ath10k_pci

-output of rfkill list

1: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
5: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

dc37 · Answer 1 · 2019-11-12T01:53:46.157

1) Are you sure that it is Linux Mint 19.3 ? It has not been released yet (next December or January).

2) Can you provide in your question, the output of lspci -nnk | grep -i network -A 3 and rfkill list ?

EDIT

I'm suspecting (but I can get wrong) that it is related to the power management of your wifi card after enabling the sleeping mode.

Maybe you can try to change the powersave value from 3 to 2 as explained in these posts: How to turn off Wireless power management permanently and More wifi issues - Qualcomm Atheros QCA6174 ath10k_pci

For doing that, you can check the value of the power save mode:

cat /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf

And change the value to 2 by doing:

sudo sed -i 's/wifi.powersave = 3/wifi.powersave = 2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf

it worked for two times and then it stopped working. – Alessio_110 Nov 13 '19 at 22:15 — Alessio_110, Nov 13 '19 at 22:15
This does not work, this has no effect on the issue – Alessio_110 Nov 21 '19 at 01:10 — Alessio_110, Nov 21 '19 at 01:10

score 0 · Answer 2 · answered Nov 18 '20 at 20:40

I was also unable to activate WIFI after resuming PC from sleep.

Always getting "Hard block: yes"

Restoring BIOS to factory defaults finally resolved the problem. Not shore what particular BIOS setting thou.

HP Pavilion 15-n004ej RT3290 Wireless - driver=rt2800pci driverversion=5.4.0-54-generic firmware=0.37 Linux Mint 19.3 5.4.0-54-generic wifi.powersave = 3

Wifi issue after sleep

2 Answers2