- isw started as an equivalent of "control tools by pherein" but under linux.
- It is meant to alter fan profiles of MSI laptops.
- Profiles for supported laptops are located in /etc/isw.conf.
- You can check /etc/isw.conf. comments for more details.
- Use it at your own risk!
- Secure boot can prevent access to the EC.
- isw is made/tested with MSI GS40 6QE under Arch/Manjaro, other laptops depend on user contribution.
- Check that your EC (Embedded Controler) work the same way, you can find documentation on the wiki.
- If you are using archlinux or a derivative you can install it from AUR:
yay -S isw - If you are on a different distro family:
- Clone
git clone https://github.com/YoyPa/isw - Then look at this PKGBUILD to know where to put files.
- /!\ Path can change a bit depending on the distro /!\
- Clone
- It need
ec_sysmodule with optionwrite_support=1, there are two scenario to set that:- ec_sys is a builtin kernel module:
- add
ec_sys.write_support=1in/etc/default/grub(Arch AUR package can't do it for you). - then update your grub with
update-gruband reboot.
- add
- ec_sys is not a builtin kernel module:
- copy both
isw-ec_sys.conffiles provided (/etc/mod[...]) with same path (Arch AUR package will do it for you). - then reboot OR
modprobe ec_sys write_support=1.
- copy both
- ec_sys is a builtin kernel module:
usage: isw [-h] [-b B] [-c] [-f FILE] [-p P] [-r [R]] [-s S S] [-t T] [-u USB] [-w W] optional arguments: -h, --help show this help message and exit -b B ┬ enable or disable CoolerBoost └ replace B with off OR on -c ─ show an EC dump -f FILE, --file FILE ┬ show profile in EC update file └ replace FILE with FILE_NAME -p P ┬ show current profile in EC └ replace P with SECTION_NAME -r [R] ┬ show realtime CPU+GPU temp and fan speed from EC ├ replace [R] with any [NUMBER] to perform a [NUMBER] of time(s) └ Assume [0] if given nothing = infinite loop -s S S ┬ set a single value into EC ├ replace 1st S with ADDRESS in hexadecimal (0x00) └ replace 2nd S with VALUE in decimal (00) -t T ┬ set the battery charging treshold └ replace T with a NUMBER between 20 and 100 (٪) -u USB, --usb USB ┬ set usb backlight level └ replace USB with off, half OR full -w W ┬ write into EC └ replace W with SECTION_NAME ┌─ TIPS ──────────────────────────────────────────────────────────────────┐ │ Set your config in '/etc/isw.conf'. │ │ Arguments order is relevant, -c and -p can be used twice. Example: │ │ isw -cw SECTION_NAME -c will show you EC dump before and after change. │ ├─ SUPPORT ───────────────────────────────────────────────────────────────┤ │ Help me support your laptop by providing following command output: │ │ isw -cp MSI_ADDRESS_DEFAULT │ │ via https://github.com/YoyPa/isw (open an issue). │ │ Make sure your dump is made before altering EC with isw, you can reset │ │ your EC with a reboot or by changing power source. │ ├─ NAME ──────────────────────────────────────────────────────────────────┤ │ ISW is MSI at 180° │ │ It means Ice-Sealed Wyvern in opposition to MSI's 'unleash the dragon' │ └─────────────────────────────────────────────────────────────────────────┘ NB: all option exept -h and -f need priviledges.
SECTION_NAME refer to the motherboard name inside isw.conf, if for example you have a GS40_6QE your SECTION_NAME would be 14A1EMS1.
If you want to change temperature treshold and/or fan speed for cpu and/or gpu, you have to edit the corresponding section in isw.conf to set the wanted values and use isw -w 14A1EMS1 to apply.
If you want to check the current temperature and fan speed you will have to type isw -r.
Don't forget to read the comment at the beginning of isw.conf, it contain some helpfull info.
You can launch isw -w [SECTION_NAME] at startup/resume via systemd with isw@.service (need priviledges):
systemctl enable isw@[SECTION_NAME].service - Daemonisation - Launch at startup done - launch after resume (hibernation/suspend) done - Launch at event(power source change) 
