10.04.2018 - emailed message to Asus Customer Service

Dear Asus Customer Service,
I would like to be informed about two most imporant things regarding my Asus G752VS laptop:

1)
will Asus release anytime soon the new BIOS update containing Meltdown and Spectre fixes?

2)
will this new BIOS update contain a fix for reported long standing ELAN touchpad issue and finally make the touchpad usable (wake the dead) under Linux?

Best regards,
worried Customer

================

11.04.2018 - emailed message to Kai-Heng Feng, Chris Chiu, KT Liao, Benjamin Tissoires and Peter Hutterer

Dear Linux kernel developers,
with a hope that this message can somehow help finding the definitive and complete solution, I'm writing to inform you about some important news regarding Asus G752 laptop series and a long standing ELAN touchpad issue (touchpad "ELAN1203:00 04F3:3043" completely dead).

Some people reported in 2017 that installing a "suspicious" file under Windows solves the ELAN touchpad Linux problem too:
https://rog.asus.com/forum/showthread.php?93405-G-752-VS-Touchpad-Gesture-Fix
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1653456/comments/130
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1653456/comments/134
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1653456/comments/144
After a long time thinking, I didn't want to take a risk since the mentioned Windows file is "suspicious".

Now the big news is that after executing a few simple commands, ELAN touchpad is miraculously awaken from death and it starts partially functioning.
If you have some free time, please take a look here:
comment 152 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1653456

Best regards.

================

Solus deveopers helped me to solve the "bash: new_id: Permission denied" problem in executing commands suggested by Clément Gayot - and here's the result:

# cd /sys/bus/hid/drivers/hid-multitouch
# ls
0018:04F3:3043.0007 bind module new_id uevent unbind
# echo "0018:04F3:3043.0007" | sudo tee /sys/bus/hid/drivers/hid-multitouch/unbind
# echo "0018 04F3 3043 0013" | sudo tee /sys/bus/hid/drivers/hid-multitouch/new_id

Miraculously - touchpad mouse and buttons works ok (as Clément Gayotbut said, no solution for multitouch - no gesture capabilities for Elan Mouse). Fn keys to disable and enable the touchpad works, but produce no effect at all - touchpad is always enabled.
Both with xinput and libinput-devices, two devices are now listed:

~ $ xinput
⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ G-SPY USB Gaming Mouse                  	id=12	[slave  pointer  (2)]
⎜   ↳ Asus Keyboard                           	id=14	[slave  pointer  (2)]
⎜   ↳ Asus Keyboard                           	id=15	[slave  pointer  (2)]
⎜   ↳ ELAN1203:00 04F3:3043 Mouse             	id=16	[slave  pointer  (2)]
⎜   ↳ ELAN1203:00 04F3:3043 Touchpad          	id=21	[slave  pointer  (2)]
⎣ Virtual core keyboard                   	id=3	[master keyboard (2)]
    ↳ Virtual core XTEST keyboard             	id=5	[slave  keyboard (3)]
    ↳ Power Button                            	id=6	[slave  keyboard (3)]
    ↳ Asus Wireless Radio Control             	id=7	[slave  keyboard (3)]
    ↳ Video Bus                               	id=8	[slave  keyboard (3)]
    ↳ Sleep Button                            	id=9	[slave  keyboard (3)]
    ↳ USB2.0 HD UVC WebCam: USB2.0 HD         	id=10	[slave  keyboard (3)]
    ↳ G-SPY USB Gaming Mouse                  	id=11	[slave  keyboard (3)]
    ↳ Asus Keyboard                           	id=13	[slave  keyboard (3)]
    ↳ Asus WMI hotkeys                        	id=17	[slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard            	id=18	[slave  keyboard (3)]
    ↳ G-SPY USB Gaming Mouse                  	id=19	[slave  keyboard (3)]
    ↳ Asus Keyboard                           	id=20	[slave  keyboard (3)]

~ $ sudo libinput-list-devices
Device:           ELAN1203:00 04F3:3043 Mouse
Kernel:           /dev/input/event15
Group:            9
Seat:             seat0, default
Capabilities:     pointer 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   button
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   flat *adaptive
Rotation:         n/a

Device:           ELAN1203:00 04F3:3043 Touchpad
Kernel:           /dev/input/event16
Group:            9
Seat:             seat0, default
Size:             113x62mm
Capabilities:     pointer gesture
Tap-to-click:     enabled
Tap-and-drag:     enabled
Tap drag lock:    disabled
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   *two-finger edge 
Click methods:    none
Disable-w-typing: enabled
Accel profiles:   none
Rotation:         n/a