SER5 Pro 5600H Wifi After Sleep Workaround

simpsipper

Here is what I sent tech support, I use fedora 37, please adapt to suit your needs.

First I found which pci address was the wifi card with

"lspci"

I then figured out that removing the device from the pci bus with

"echo 1 >/sys/bus/pci/devices/0000:02:00.0/remove"

and then re-scanning with
" echo 1 >/sys/bus/pci/rescan"
Made the wifi work again!

I then made 2 scripts in this directory
'/lib/systemd/system-sleep/'


script 1 name = wifi-fix.sh

content =

#! /bin/sh -xv
echo 1 >/sys/bus/pci/devices/0000:02:00.0/remove


script 2 name = 99wifi-fix.sh
content =

#! /bin/sh -xv

echo 1 >/sys/bus/pci/rescan

make both files executable with "chmod +x" and wifi issues are resolved

Magister

With systemd, it's easier to use the existing method of unloading module/reloading module when sleeping and awaken

create a  /usr/lib/systemd/system-sleep/remove-mt7921e.sh file

#!/bin/bash
[ "$1" = "post" ] && exec /usr/sbin/modprobe mt7921e
[ "$1" = "pre" ] && exec /usr/sbin/modprobe -r mt7921e
exit 0

Support-03

Hello,
Thanks for your sharing.

simpsipper

Magister replied at 2023-02-07 00:06
With systemd, it's easier to use the existing method of unloading module/reloading module when sleep ...

I am sure there are many ways to do it. What I noticed though, is that modprobe only works with active loaded devices, and if this issue was present, the modprobe commands will not work. Thats why I went with the pci route, no matter if the firmware was loaded, it will offload the device based on bus address.

Andor

simpsipper replied at 2023-02-07 02:42
I am sure there are many ways to do it. What I noticed though, is that modprobe only works with ac ...

Hi, thank you for sharing the script I have tested and it works with Manjaro but it does not work with MX linux, Do you know why?

thanks

Jagnix

I got my SER 5600H Pro at the big river the day before yesterday.
I have an Intel AX200 installed. I also have an SSD holder with a fan installed.
In every Youtube video at the SER5 Pro 5600H no Intel and SSD holder with fan is shown. or mentioned.
Very strange.

Magister

Andor replied at 2023-02-10 06:54
Hi, thank you for sharing the script I have tested and it works with Manjaro but it does not work  ...

MX Linux is not using systemd.

create a simple /etc/pm/config.d/config containing

HOOK_BLACKLIST="wireless"
SUSPEND_MODULES="mt7921e"