No touchpad in linux mint 19.2

rhubarbdog · 04-01-2020, 01:30 AM

I've installed Linux mint 19.2. when it loaded up to the 'Try Linux' the touchpad didn't work. I plugged in a usb mouse to complete the installation. when the installation was complete I tried again still no touchpad.
I've tried `sudo apt-get update && sudo apt-get upgrade` still no touch pad.
I've tried to diagnose the issue typing
`dmesg | grep input | less`
yields all input devices, but doesn't mention touchpad
`dmesg | grep touch | less`
yields nothing
`dmesg | grep i2c | less`
yields something about no Vdd to device ELAN

anyone know how I can get a touchpad working if not i'll have to take the laptop back as faulty. I am using MS Win 10 as much as possible, but to be honest that's a buggy piece of sh**e. which does what it wants if it can be bothered often grinding to a halt, junks itself and crashes applications. I need a working version of Linux with touchpad support so I can jus get on with my life

thanks in advance

ondoho · 04-01-2020, 02:42 AM

Output of

Code:

xinput list
synclient

please.

Also see here: https://www.maketecheasier.com/fix-t...working-linux/

ferrari · 04-01-2020, 05:31 AM

This might also be useful

Code:

dmesg | grep i8042

Be sure to post the output rather than just a verbal description, and please enclose within CODE tags (refer to the '#' button in the advanced forum editor).

rhubarbdog · 04-17-2020, 08:49 PM

hi sorry for the delay not been feeling up to nerdy stuff i think virus-anxeity has got to me a bit. what is weird about this touchpad thing is sometimes it does work, but i ain't been able to get it to work each time i boot up.

here's xinput list

Code:

⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳  USB OPTICAL MOUSE                      	id=10	[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)]
    ↳ Video Bus                               	id=7	[slave  keyboard (3)]
    ↳ Power Button                            	id=8	[slave  keyboard (3)]
    ↳ Sleep Button                            	id=9	[slave  keyboard (3)]
    ↳ EasyCamera: EasyCamera                  	id=11	[slave  keyboard (3)]
    ↳ Ideapad extra buttons                   	id=12	[slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard            	id=13	[slave  keyboard (3)]

here's synclient

Code:

 Couldn't find synaptics properties. No synaptics driver loaded?

here's dmesg | grep i8042

Code:

[    1.433109] i8042: PNP: PS/2 Controller [PNP0303:KBD0] at 0x60,0x64 irq 1
[    1.433110] i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp
[    1.434256] serio: i8042 KBD port at 0x60,0x64 irq 1
[    1.455541] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4

thanks in advance for your help

phil

ferrari · 04-17-2020, 09:10 PM

Ok, can you give us the laptop model details? That might help with any online searching.

You could try adding 'i8042.nopnp' to the kernel boot parameters. Don't feel daunted by this. It's explained here
https://wiki.ubuntu.com/Kernel/KernelBootParameters
In particular to can add it on a temporary basis at the grub screen by pressing the 'E' key
https://wiki.ubuntu.com/Kernel/Kerne...er_for_Testing
Take your time to understand and perform this.

If that works it can be configured on a permanent basis.

If it doesn't, it may be necessary to try using a more recent kernel. It may be that the touchpad hardware is to new for the current kernel. This might also seem daunting, but the existing kernel can be left in place and booted from if necessary. Have a read of this guide on undertaking that
https://computingforgeeks.com/instal...tu-linux-mint/

Other than that I can only suggest a bug report.

ondoho · 04-18-2020, 01:03 AM

@ferrari, why do you think i8042 is relevant here, why did you bring it up?

@OP:
I hope it is clear from the output I requested that the touchpad is not recognized as such, or even at all.
The USB mouse might be interfering; your best bet might be to re-install without it attached.

ferrari · 04-18-2020, 02:47 AM

Quote:

@ferrari, why do you think i8042 is relevant here, why did you bring it up?

Keyboard and touchpad input devices are typically connected to this subsystem in laptops. It got it's name from the days when it existed as a discrete Intel controller IC. These days it resides as a tiny part of the south bridge chip that emulates a real Intel 8042 keyboard controller chip. So, for a laptop, grepping the dmesg output for such kernel info will often return useful output. Before a device can even appear in user-space, there needs to be kernel support for it, or it has to be initialised properly. That doesn't look like this is happening. That is why it doesn't appear in Xorg-related output.

ferrari · 04-18-2020, 03:14 AM

Quote:

The USB mouse might be interfering; your best bet might be to re-install without it attached.

No, I doubt this is the case at all. The issue is at a lower device/kernel level.

rhubarbdog · 04-18-2020, 11:44 PM

it's a lenovo laptop amd A4 i think the touch pad just isn't powered up at the right time. touch pad works on win 10 but microsoft makes so many demands of hardware manufacturers. i might just leave it i kinda hate touch pad. ive seen a small thumb mouse which you wear as a thumb ring what they like ok or a bit of a pain in the ass. i'll try that kernal perameter stuff but i a bit fried at the mo to do all the reading and makesure i understand before i procede i might just delete the quiet kernal perameter thats fixed minor bugs for me before as strange as it would seem

thanks you all seen knowledgable but at logger heads i could take it back to curry/pc world and explain that it's faulty cant use win 10 as it is always indexing folders even ones on the hd and it's broken with linux and i know this version good it worked on the last laptop you sold me but went faulty

ferrari · 04-18-2020, 11:54 PM

Ok, good luck with returning it.