Bug 190301

Summary:	Synaptics touchpad not recognized on Clevo P650RS
Product:	Drivers	Reporter:	Paweł Bylica (chfast)
Component:	Input Devices	Assignee:	Dmitry Torokhov (dmitry.torokhov)
Status:	ASSIGNED ---
Severity:	normal	CC:	dmitry.torokhov, edbordin, mirh, openoliv, sdvillal
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	4.9	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	output from running dmidecode Add Clevo P650RS to the i8042 reset list

Description Paweł Bylica 2016-12-13 20:26:54 UTC

When booting normally kernels from 4.8 to 4.9 the touchpad is not recognized and not visible in /proc/bus/input/devices.

I managed to fix it by adding i8042.reset boot option.

I: Bus=0011 Vendor=0002 Product=0007 Version=01b1
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio2/input0
S: Sysfs=/devices/platform/i8042/serio2/input/input14
U: Uniq=
H: Handlers=mouse1 event7 
B: PROP=1
B: EV=b
B: KEY=e520 30000 0 0 0 0
B: ABS=660800011000003

[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.8.0-30-generic.efi.signed root=UUID=a596a1fd-2912-4a20-a48c-6b8a32078b5c ro quiet splash i8042.reset vt.handoff=7
[    0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.8.0-30-generic.efi.signed root=UUID=a596a1fd-2912-4a20-a48c-6b8a32078b5c ro quiet splash i8042.reset vt.handoff=7
[    1.374510] i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12
[    1.378430] i8042: Detected active multiplexing controller, rev 1.1
[    1.381586] serio: i8042 KBD port at 0x60,0x64 irq 1
[    1.381588] serio: i8042 AUX0 port at 0x60,0x64 irq 12
[    1.381604] serio: i8042 AUX1 port at 0x60,0x64 irq 12
[    1.381617] serio: i8042 AUX2 port at 0x60,0x64 irq 12
[    1.381629] serio: i8042 AUX3 port at 0x60,0x64 irq 12
[    1.386233] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4
[    4.040631] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio2/input/input14

Comment 1 mirh 2016-12-17 20:24:44 UTC

Try to see if i8042.nomux, i8042.nopnp, i8042.reset or i8042.kbdreset boot parameters changes anything.

Comment 2 Paweł Bylica 2016-12-17 20:34:19 UTC

I'm really sorry, I already did that, but forgot to post the results here.

The only needed option to fix the issue is i8042.reset.

I can try to fix this in the code if you can tell me where to start.

Comment 3 mirh 2016-12-17 21:00:08 UTC

Oh, cool. 
Does this happen only sporadically or is it a constant?

In the former case I guess this would be a duplicate of bug 100551

Comment 4 Paweł Bylica 2016-12-17 21:10:41 UTC

My issue is constant, I never got the touchpad working without i8042.reset option, also never had issues with the keyboard when the touchpad was working. Also no issues on Windows. However, I always boot using EFI, never tried legacy BIOS.

Comment 5 Santi Villalba 2016-12-21 11:33:00 UTC

This happens in other clevos of the same family, like the P650RP6/P651RP6. See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1651005

Comment 6 openoliv 2017-01-16 20:37:26 UTC

I've got the same issue on a P650RP, on Arch :

Kernel 4.8.13-1
Kernel option : i8042.reset

linux-firmware 20161222.4b9559f-2
xorg-server 1.19.1-1
libinput-1.5.4-1

Downgrading to libinput 1.5.3-1 fixed (for now) the issue.

Comment 7 Paweł Bylica 2017-03-23 09:49:35 UTC

Ok, so this might be libinput issue? I don't understand how libinput is related to the kernel, but should that be reported somewhere else?

I also noticed that with i8042.reset option is sometime happens that keyboard is not working after restart. Usually it requires 1 or 2 more restarts to make it work again.

Anything more I can do to help fixing this?

Comment 8 Edward Bordin 2017-04-12 05:07:47 UTC

Problem persists in kernel 4.10 on a Clevo P650RP but the i8042.reset workaround still seems to fix it. I'm also happy to collect info to help fix this.

Comment 9 Dmitry Torokhov 2017-04-12 15:54:59 UTC

Could you attach dmidecode output from your box (sanitize UUID/Serial number if you wish).

Comment 10 Edward Bordin 2017-04-13 00:25:35 UTC

Created attachment 255877 [details]
output from running dmidecode

As requested

Comment 11 Dmitry Torokhov 2017-04-18 18:34:16 UTC

Created attachment 255919 [details]
Add Clevo P650RS to the i8042 reset list

Please try this patch and let me know if it works for you.

Comment 12 Edward Bordin 2017-04-20 01:17:49 UTC

Apologies for the delay, this is my first time testing a patch so it's taking me a while to work through it. I had hoped I could just rebuild the i8042 module, but have now realised it's compiled into my kernel.

I'll have to put aside some time to learn how to do a full kernel rebuild. I'm on Ubuntu so it looks most of the work is already done for me. Unless there's a way I can override the builtin i8042 with a module?

Comment 13 Edward Bordin 2017-04-24 03:14:26 UTC

OK, patch works for me.