Benjamin,

I'm sorry. I just wanted to summarize the problem I reported at
bugs.launchpad.net

I followed the instructions that Ubuntu Team said to me,
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1493814/comments/33

The rest is only my ignorance about Linux Kernel. I'm sorry twice!

I will try to explain a new time the problem. I have no idea if it's
caused by the input module or not. Perhaps it is a problem of the i2c
module.

The Synaptic Touchpad is detected as SYN1B7D:01 06CB:2991 UNKNOWN with
default BIOS settings (i2c mode activated).

I tried this with the last version of the BIOS and latest kernel 64
bit available.

When this occurs the Touchpad works just like a simple mouse.

Thanks!

Josep


2015-10-05 11:09 GMT+02:00 Benjamin Tissoires [off-list ref]:

Hi Josep,

[please do not take my rant personally, I know it can be difficult to
report a problem upstream]

On Sun, Oct 4, 2015 at 7:26 PM, Josep Pujadas-Jubany [off-list ref] wrote:

quoted

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1493814

Touchpad has issues working
===========================

The mainline kernel does not fix the issue

Latest BIOS (1.38)

Oh boy. We are not robots. Please add some valuable information like
what is the issue, and what you are seeing. We are humans and a little
bit of phrasing does not hurt (I know the ubuntu howto tells you to
consider us as robot, and I really am offended each time we receive
such a bug report).

quoted

BIOS Touchpad option ---> Advanced
==================================

$ xinput
⎜ ↳ SYN1B7D:01 06CB:2991 UNKNOWN id=11 [slave pointer (2)]

$ dmesg | grep -E "(mouse|input)"
[ 14.668719] input: SYN1B7D:01 06CB:2991 UNKNOWN as
/devices/platform/80860F41:00/i2c-0/i2c-SYN1B7D:01/0018:06CB:2991.0001/input/input7
[ 14.669434] hid-multitouch 0018:06CB:2991.0001: input,hidraw0:
<UNKNOWN> HID v1.00 Mouse [SYN1B7D:01 06CB:2991] on

This looks good to me from the input point of view. Please describe
which issues you are seeing, because here, all we can say is that it
is normal and there is nothing to be done.

quoted

BIOS Touchpad option ---> Basic
===============================

$ xinput
⎜ ↳ SynPS/2 Synaptics TouchPad id=12 [slave pointer (2)]

$ dmesg | grep -E "(mouse|input)"
[ 2.367407] psmouse serio2: synaptics: queried max coordinates: x
[..5662], y [..4728]
[ 2.410703] psmouse serio2: synaptics: queried min coordinates: x
[1322..], y [1190..]
[ 2.493774] psmouse serio2: synaptics: Touchpad model: 1, fw: 8.1, id:
0x1e2b1, caps: 0xd40123/0x840300/0x126800, board id: 2991, fw id:
1626681
[ 2.543305] input: SynPS/2 Synaptics TouchPad as
/devices/platform/i8042/serio2/input/input11

OK, this is normal too.

Cheers,
Benjamin

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