[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Mario Limonciello]

It looks like you don't have the associated xorg package installed with it.
https://launchpad.net/ubuntu/+source/xserver-xorg-input-libinput

You should check your Xorg log to see if libinput is active.

Given this initial issue is resolved (touchpad stopped working) I'm going to 
close this kernel task.
If there ends up still being another bug related to the performance you should 
open a separate bug relative to the libinput package.  Feel free to subscribe 
Kai Heng Feng and myself to them (although I'll be on vacation so I may not 
respond for a while).

** Changed in: linux (Ubuntu)
   Status: Confirmed => Invalid

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kevin Dalley]

Thanks.

It looks like I have some libinput

ii  libinput-bin 
1.8.2-1ubuntu2 amd64input 
device management and event handling library - udev quirks
ii  libinput10:amd64 
1.8.2-1ubuntu2 amd64input 
device management and event handling library - shared library
ii  libinput7:amd64  0.10.0-1   
amd64input device 
management and event handling library - shared library

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Re: [Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Mario Limonciello]

So for what it's worth looking at adopting libinput would likely improve
your touchpad experience.

You should investigate if you are using that after upgrade. It's the
default with 17.10 fresh install but I don't know what would happen with
upgrade.

PS2 mode doesn't support as many features as I2C does. If you still aren't
happy with the performance in I2C mode you should be able to adjust many
options in libinput that can better improve it than switching to PS2 mode
offered.

On Thu, Dec 14, 2017, 13:35 Kevin Dalley <1737...@bugs.launchpad.net>
wrote:

> This file was a workaround, done outside of packaging. The touchpad has
> frequently been a problem over the lifetime of the laptop, through
> multiple Ubuntu releases.
>
> The problem historically was that the touchpad was flakey, and would
> often freeze, jitter, move all over the place. Many users of this laptop
> added the blacklist. I was one of those users.
>
> Here's one reference going back to Ubuntu-14.04:
>
> https://askubuntu.com/questions/593466/xps13-touchpad-issues-
> with-14-04-2
>
> Here's a more recent entrance.
>
> https://askubuntu.com/questions/134627/how-do-i-get-the-touchpad-
> settings-working-on-a-dell-xps-13-ultrabook
> 
>
> I noticed that I recreated this file on October 27, 2017, probably after
> the 17.10 upgrade.
>
> But I have been using this file for years. Hence my slowness at
> remembering the file.
>
> Perhaps something changed so that could no longer be blacklisted without
> losing the touchpad.
>
> Also, I notice that the touchscreen seems to work. I had it disabled for
> so long that I had stopped testing it.
>
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> Title:
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>
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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kevin Dalley]

This file was a workaround, done outside of packaging. The touchpad has
frequently been a problem over the lifetime of the laptop, through
multiple Ubuntu releases.

The problem historically was that the touchpad was flakey, and would
often freeze, jitter, move all over the place. Many users of this laptop
added the blacklist. I was one of those users.

Here's one reference going back to Ubuntu-14.04:

https://askubuntu.com/questions/593466/xps13-touchpad-issues-
with-14-04-2

Here's a more recent entrance.

https://askubuntu.com/questions/134627/how-do-i-get-the-touchpad-
settings-working-on-a-dell-xps-13-ultrabook

I noticed that I recreated this file on October 27, 2017, probably after
the 17.10 upgrade.

But I have been using this file for years. Hence my slowness at
remembering the file.

Perhaps something changed so that could no longer be blacklisted without
losing the touchpad.

Also, I notice that the touchscreen seems to work. I had it disabled for
so long that I had stopped testing it.

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Re: [Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Mario Limonciello]

That file is not shipped with standard Ubuntu. Was this an OEM shipped
machine and it came in an oem package? Or was that something you added
yourself?

You can check:
dpkg -S /etc/modprobe.d/blacklist_i2c_hid.conf

On Thu, Dec 14, 2017, 12:55 Kevin Dalley <1737...@bugs.launchpad.net>
wrote:

> And here is the  /proc/bus/input/devices
> under
> 4.13.0-16-generic
>
>
> ** Attachment added: "cat /proc/bus/input/devices under 4.13.0-16-generic"
>
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1737639/+attachment/5022746/+files/devices-5
>
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>
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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kevin Dalley]

And here is the  /proc/bus/input/devices
under 
4.13.0-16-generic


** Attachment added: "cat /proc/bus/input/devices under 4.13.0-16-generic"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1737639/+attachment/5022746/+files/devices-5

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kevin Dalley]

The I2C comment gave me a hint, which led to a solution.

But I still have a question of what changed and what can be done to warn
the user about the change.

I removed the file:

/etc/modprobe.d/blacklist_i2c_hid.conf?field.comment=The I2C comment
gave me a hint.

I removed the file:

/etc/modprobe.d/blacklist_i2c_hid.conf

I still have the following lines in blacklist.conf:

# causes failure to suspend on HP compaq nc6000 (Ubuntu: #10306)
blacklist i2c_i801


** Attachment added: "modprobe.d filie removed which caused"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1737639/+attachment/5022738/+files/blacklist_i2c_hid.conf

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kai-Heng Feng]

IIRC touchpad on XPS 9343 should use I2C.

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kevin Dalley]

I installed trisquel_7.0_amd64.iso

The touchpad works.


I have includes devices under trisquel, with the touchpad below:

I: Bus=0011 Vendor=0002 Product=0007 Version=01b1
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input6
U: Uniq=
H: Handlers=mouse0 event5 
B: PROP=5
B: EV=b
B: KEY=e520 1 0 0 0 0
B: ABS=66080001103


** Attachment added: "cat /proc/bus/input/devices under trisquel"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1737639/+attachment/5022399/+files/devices

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kevin Dalley]

I installed trisquel_7.0_amd64.iso

The touchpad works.


I have includes devices under trisquel, with the touchpad below:

I: Bus=0011 Vendor=0002 Product=0007 Version=01b1
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input6
U: Uniq=
H: Handlers=mouse0 event5 
B: PROP=5
B: EV=b
B: KEY=e520 1 0 0 0 0
B: ABS=66080001103


** Attachment added: "cat /proc/bus/input/devices under trisquel"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1737639/+attachment/5022397/+files/devices

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kevin Dalley]

I installed trisquel_7.0_amd64.iso

The touchpad works.


I have includes devices under trisquel, with the touchpad below:

I: Bus=0011 Vendor=0002 Product=0007 Version=01b1
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input6
U: Uniq=
H: Handlers=mouse0 event5 
B: PROP=5
B: EV=b
B: KEY=e520 1 0 0 0 0
B: ABS=66080001103


** Attachment added: "cat /proc/bus/input/devices under trisquel"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1737639/+attachment/5022398/+files/devices

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kevin Dalley]

I'll see whether I can find Windows to install on my box

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kai-Heng Feng]

I don't have XPS 9343 to check right now.

Does the touchpad use PS/2 mode or i2c mode?

I don't see i2c-hid for i2c-DLL0665:01, so I guess something's wrong about your 
i2c controller.
Can you give Windows a try? I guess you can observe the same issue under 
Windows.

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kevin Dalley]

Seems like a good guess, but the touchpad does work when I go into the
BIOS

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kevin Dalley]

Still have problems with 4.4:

linux-headers-4.4.105-0404105_4.4.105-0404105.201712091332_all.deb
linux-headers-4.4.105-0404105-generic_4.4.105-0404105.201712091332_amd64.deb
linux-image-4.4.105-0404105-generic_4.4.105-0404105.201712091332_amd64.deb

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kai-Heng Feng]

If this doesn't work on old kernel, I guess it's not a kernel issue.

Just guess, maybe your touchpad get pushed up a bit by a swelling
battery.

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Po-Hsu Lin]

** Tags added: kernel-bug-exists-upstream

** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kevin Dalley]

No luck with 4.12

I tried using:

linux-headers-4.12.0-041200_4.12.0-041200.201707022031_all.deb
linux-headers-4.12.0-041200-generic_4.12.0-041200.201707022031_amd64.deb
linux-image-4.12.0-041200-generic_4.12.0-041200.201707022031_amd64.deb


List of devices is attached.

Good news is that wifi works with this kernel, and did not work with
4.15

Is it possible that something else is wrong

** Attachment added: "List of devices with 4.12"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1737639/+attachment/5021870/+files/devices-4

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kevin Dalley]

And here's the latest list of devices.

** Attachment added: "devices-3"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1737639/+attachment/5021538/+files/devices-3

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kai-Heng Feng]

Can you try v4.12?

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Kevin Dalley]

I tried linux-image-4.15.0-041500rc3-generic

Unfortunately, I still don't have a working touchpad.

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[Bug 1737639] Re: Touchpad stopped working in Dell XPS13

[Joseph Salisbury]

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.15 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as
"Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc3

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Tags added: needs-bisect

** Changed in: linux (Ubuntu)
   Status: Confirmed => Incomplete

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