Re: ASUS G752VS Touchpad does not work

*
Ubuntu 17.10 daily build (2017-07-10), kernel 4.10.0-19
Booted from Live USB, without USB mouse connected: ELAN touhpad doesn't 
work at all, but al least touchpad cursor is visible all the time. I've 
tried to disable/enable the touchpad via system settings, but nothing 
changes.
After that, I suspended my Asus G752VS laptop via shutdown/suspend menu 
and then I disconnected the USB mouse. After waking up from suspend, my 
ELAN touhpad magically became fully functional - everything works 
fabulously.

*
Fedora Workstation 26, kernel 4.11.8
Booted from Live USB, without USB mouse connected: ELAN touhpad doesn't 
work at all, but al least touchpad cursor is visible all the time. With 
the USB mouse connected, I've tried to disable/enable the touchpad via 
system settings, but nothing changes.
After that, I pressed the power button to suspend my Asus G752VS laptop 
and then I disconnected the USB mouse. After pressing once again the 
power button to wake up from suspend, my ELAN touhpad magically became 
fully functional - everything works fabulously.

*
As reported here
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1653456/comments/76
the trick should work also with Ubuntu 17.04 but that's not my case. My 
current Ubuntu 17.04 was installed while it was still in development - 
so I will perform a new clean installation (without Windows) in the next 
few days.


On 2017-07-03 12:30, 廖崇榮 wrote:

Chris thinks touchpad works fine but display card issue in previous 
mail.
Could anyone help to check it?

-----Original Message-----
From: Aljoša [mailto:aljosa@cromalternativemoney.org]
Sent: Monday, July 03, 2017 5:03 PM
To: Kai-Heng Feng
Cc: Chris Chiu; 廖崇榮; linux-input@vger.kernel.org; 黃世鵬 經理
Subject: Re: ASUS G752VS Touchpad does not work

Hello,
I have just installed the new Linux 4.12 kernel.
My ELAN touchpad is still completely dead.
Please find attached the complete dmesg output file here (comment #75):
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1653456


On 2017-06-20 12:06, Kai-Heng Feng wrote:

quoted

On Tue, Jun 20, 2017 at 5:53 PM, Aljoša
[off-list ref] wrote:

quoted

Currently I'm using 4.11.0-5.10 kernel compiled by Kai-Heng Feng:
http://people.canonical.com/~khfeng/asus-hid/

FWIW,

quoted

1. verify the return value of irq_get_trigger_type()

[    4.478815] i2c_hid i2c-ELAN1203:00: Trigger type: 0

quoted

2. Force the trigger type to IRQ_TYPE_EDGE_FALLING with
irqd_set_trigger_type() before request_threaded_irq() 3. reboot with
your own kernel to see if it works.

I also set the type to IRQ_TYPE_EDGE_FALLING. But looks like it didn't
work for the user.