ISW / Ice-Sealed Wyvern

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.

Warning

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.

How to install

Package or not package ?

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 /!\

Builtin or not builtin ?

It need ec_sys module with option write_support=1, there are two scenario to set that:
- ec_sys is a builtin kernel module:
  - add ec_sys.write_support=1 in /etc/default/grub (Arch AUR package can't do it for you).
  - then update your grub with update-grub and reboot.
- ec_sys is not a builtin kernel module:
  - copy both isw-ec_sys.conf files provided (/etc/mod[...]) with same path (Arch AUR package will do it for you).
  - then reboot OR modprobe ec_sys write_support=1.

How to use it ?

Current --help output

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.

An example

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.

Launch at startup/resume

You can launch isw -w [SECTION_NAME] at startup/resume via systemd with isw@.service (need priviledges):

systemctl enable isw@[SECTION_NAME].service

TODO

- Daemonisation
	- Launch at startup                            done
	- launch after resume (hibernation/suspend)    done
	- Launch at event(power source change)