Bug 95169 - kernel: Touchscreen function broken on Thinkpad X1 Yoga
Summary: kernel: Touchscreen function broken on Thinkpad X1 Yoga
Status: RESOLVED FIXED
Alias: None
Product: Wayland
Classification: Unclassified
Component: libinput (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Wayland bug list
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-04-27 13:31 UTC by Robert de Rooy
Modified: 2017-01-09 01:22 UTC (History)
3 users (show)

See Also:
i915 platform:
i915 features:


Attachments
evemu-record log (2.88 KB, text/plain)
2016-04-29 07:01 UTC, Robert de Rooy
Details
evemu-record log when touch is working (42.41 KB, text/plain)
2016-05-03 08:28 UTC, Robert de Rooy
Details
hid-recorder, touch not working with v2.00UNKNOWN driver (44.08 KB, text/plain)
2016-05-18 09:35 UTC, Robert de Rooy
Details
Broken touch with stock driver (17.45 KB, text/plain)
2016-05-18 09:36 UTC, Robert de Rooy
Details
working touch with stock driver (36.96 KB, text/plain)
2016-05-18 09:36 UTC, Robert de Rooy
Details
working touch with patched driver (16.79 KB, text/plain)
2016-05-18 09:40 UTC, Robert de Rooy
Details

Description Robert de Rooy 2016-04-27 13:31:15 UTC
Skylake based ThinkPad X1 Yoga. Touchscreen worked on F23, but does not work on F24 Alpha+latest updates.

When logging into the F24 gnome desktop (regardless if X11 or Wayland), I get an warning that the Wacom device is not recognised. I did not get this on F23.

Let me know if there is anything I can add. Below some output...

$ uname -a
Linux x1yoga 4.5.2-301.fc24.x86_64 #1 SMP Thu Apr 21 14:16:00 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

$ rpm -qa|grep libinput
libinput-1.2.4-1.fc24.x86_64
xorg-x11-drv-libinput-0.16.0-2.fc24.x86_64

$ rpm -qa|grep wacom
libwacom-0.19-1.fc24.x86_64
libwacom-data-0.19-1.fc24.noarch
xorg-x11-drv-wacom-0.32.0-2.fc24.x86_64

$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 
Bus 001 Device 005: ID 138a:0090 Validity Sensors, Inc. 
Bus 001 Device 004: ID 04f2:b531 Chicony Electronics Co., Ltd 
Bus 001 Device 003: ID 8087:0a2b Intel Corp. 
Bus 001 Device 002: ID 1199:9079 Sierra Wireless, Inc. 
Bus 001 Device 006: ID 056a:5040 Wacom Co., Ltd 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation

$ sudo libinput-list-devices 
Failed to open /dev/input/event16 (Operation not permitted)
Device:           Power Button
Kernel:           /dev/input/event2
Group:            1
Seat:             seat0, default
Capabilities:     keyboard 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   n/a

Device:           Video Bus
Kernel:           /dev/input/event5
Group:            2
Seat:             seat0, default
Capabilities:     keyboard 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   n/a

Device:           Sleep Button
Kernel:           /dev/input/event1
Group:            3
Seat:             seat0, default
Capabilities:     keyboard 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   n/a

Device:           Wacom Co.,Ltd. Pen and multitouch sensor Finger
Kernel:           /dev/input/event7
Group:            4
Seat:             seat0, default
Size:             309.10x173.90mm
Capabilities:     touch
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      identity matrix
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   n/a

Device:           Wacom Co.,Ltd. Pen and multitouch sensor Pen
Kernel:           /dev/input/event8
Group:            4
Seat:             seat0, default
Size:             309.12x173.88mm
Capabilities:     tablet
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      identity matrix
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   none

Device:           Integrated Camera
Kernel:           /dev/input/event10
Group:            5
Seat:             seat0, default
Capabilities:     keyboard 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   n/a

Device:           AT Translated Set 2 keyboard
Kernel:           /dev/input/event3
Group:            6
Seat:             seat0, default
Capabilities:     keyboard 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   n/a

Device:           SynPS/2 Synaptics TouchPad
Kernel:           /dev/input/event4
Group:            7
Seat:             seat0, default
Size:             96.00x53.76mm
Capabilities:     pointer 
Tap-to-click:     disabled
Tap-and-drag:     enabled
Tap drag lock:    disabled
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   *two-finger edge 
Click methods:    *button-areas clickfinger 
Disable-w-typing: enabled
Accel profiles:   none

Device:           TPPS/2 IBM TrackPoint
Kernel:           /dev/input/event6
Group:            8
Seat:             seat0, default
Capabilities:     pointer 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: disabled
Calibration:      n/a
Scroll methods:   *button
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   flat*adaptive

Device:           ThinkPad Extra Buttons
Kernel:           /dev/input/event9
Group:            9
Seat:             seat0, default
Capabilities:     keyboard 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   n/a

$ xinput 
⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ SynPS/2 Synaptics TouchPad              	id=13	[slave  pointer  (2)]
⎜   ↳ TPPS/2 IBM TrackPoint                   	id=14	[slave  pointer  (2)]
⎜   ↳ Wacom Co.,Ltd. Pen and multitouch sensor Finger	id=9	[slave  pointer  (2)]
⎜   ↳ Wacom Co.,Ltd. Pen and multitouch sensor Pen stylus	id=10	[slave  pointer  (2)]
⎜   ↳ Wacom Co.,Ltd. Pen and multitouch sensor Pen eraser	id=16	[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)]
    ↳ Sleep Button                            	id=8	[slave  keyboard (3)]
    ↳ Integrated Camera                       	id=11	[slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard            	id=12	[slave  keyboard (3)]
    ↳ ThinkPad Extra Buttons                  	id=15	[slave  keyboard (3)]

$ xinput list-props 9
Device 'Wacom Co.,Ltd. Pen and multitouch sensor Finger':
	Device Enabled (137):	1
	Coordinate Transformation Matrix (139):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Calibration Matrix (277):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Calibration Matrix Default (278):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Send Events Modes Available (259):	1, 0
	libinput Send Events Mode Enabled (260):	0, 0
	libinput Send Events Mode Enabled Default (261):	0, 0
	Device Node (262):	"/dev/input/event7"
	Device Product ID (263):	1386, 20544
	libinput Horizonal Scroll Enabled (264):	0

$ xsetwacom --list devices
Wacom Co.,Ltd. Pen and multitouch sensor Pen stylus	id: 10	type: STYLUS    
Wacom Co.,Ltd. Pen and multitouch sensor Pen eraser	id: 16	type: ERASER
Comment 1 Robert de Rooy 2016-04-27 13:49:23 UTC
Forgot to add, the wacom pen does work.
Comment 2 Peter Hutterer 2016-04-29 00:59:41 UTC
please attach the output from evemu-record for a touch or two for this device, thanks.
Comment 3 Robert de Rooy 2016-04-29 07:01:34 UTC
Created attachment 123338 [details]
evemu-record log

I have attached the evemu-record log. I did several touches, single and pinch movements.

Note: In the meantime I have learned that sometimes the touchscreen works and other times it does not. It can go from working to not-working or vis-versa and I have not been able to yet understand the trigger. The capture log was from when it was not working.
I did not notice this behaviour with F23, but then I only ran it for a few hours before I upgraded to F24 Alpha (because of HiDPI issues with external displays).
Comment 4 Peter Hutterer 2016-05-03 00:47:01 UTC
looking at this log this appears to be a kernel problem - there are no events in the log itself (check the bottom). Please verify that when the touchscreen isn't working evemu doesn't see any events - if so then we need to move this to the kernel.
Comment 5 Robert de Rooy 2016-05-03 08:28:47 UTC
Created attachment 123430 [details]
evemu-record log when touch is working

I confirm. Here is also the log for when things do work.
Comment 6 Peter Hutterer 2016-05-03 08:38:44 UTC
Punting to benjamin and jason
Comment 7 Robert de Rooy 2016-05-03 08:42:30 UTC
With touchscreen currently working;

$ dmesg |grep -i wacom
[    2.323420] usb 1-10: Manufacturer: Wacom Co.,Ltd.
[    2.340176] input: Wacom Co.,Ltd. Pen and multitouch sensor Finger as /devices/pci0000:00/0000:00:14.0/usb1/1-10/1-10:1.0/0003:056A:5040.0001/input/input9
[    2.340564] wacom 0003:056A:5040.0001: hidraw0: USB HID v1.11 Device [Wacom Co.,Ltd. Pen and multitouch sensor] on usb-0000:00:14.0-10/input0
[    2.340777] input: Wacom Co.,Ltd. Pen and multitouch sensor Pen as /devices/pci0000:00/0000:00:14.0/usb1/1-10/1-10:1.1/0003:056A:5040.0002/input/input11
[    2.341093] wacom 0003:056A:5040.0002: hidraw1: USB HID v1.11 Mouse [Wacom Co.,Ltd. Pen and multitouch sensor] on usb-0000:00:14.0-10/input1
[229768.608915] wacom 0003:056A:5040.0001: wacom_set_report: ran out of retries (last error = -32)
[229768.609042] wacom 0003:056A:5040.0002: wacom_set_report: ran out of retries (last error = -32)
[229798.804979] wacom 0003:056A:5040.0001: wacom_set_report: ran out of retries (last error = -32)
[229798.805221] wacom 0003:056A:5040.0002: wacom_set_report: ran out of retries (last error = -32)
[229829.216144] wacom 0003:056A:5040.0001: wacom_set_report: ran out of retries (last error = -32)
[229829.216357] wacom 0003:056A:5040.0002: wacom_set_report: ran out of retries (last error = -32)
[229864.384726] wacom 0003:056A:5040.0001: wacom_set_report: ran out of retries (last error = -32)
[229864.384853] wacom 0003:056A:5040.0002: wacom_set_report: ran out of retries (last error = -32)
[230226.088235] wacom 0003:056A:5040.0001: wacom_set_report: ran out of retries (last error = -32)
[230226.088352] wacom 0003:056A:5040.0002: wacom_set_report: ran out of retries (last error = -32)
[230982.131514] wacom 0003:056A:5040.0001: wacom_set_report: ran out of retries (last error = -32)
[230982.131613] wacom 0003:056A:5040.0002: wacom_set_report: ran out of retries (last error = -32)
[234854.680992] wacom 0003:056A:5040.0001: wacom_set_report: ran out of retries (last error = -32)
[234854.681155] wacom 0003:056A:5040.0002: wacom_set_report: ran out of retries (last error = -32)
[320160.619758] wacom 0003:056A:5040.0001: wacom_set_report: ran out of retries (last error = -32)
[320160.619870] wacom 0003:056A:5040.0002: wacom_set_report: ran out of retries (last error = -32)
Comment 8 Jason Gerecke 2016-05-03 19:13:40 UTC
We once received a report of a Lenovo Yoga Thinkpad 260 producing the same kind of "wacom_set_report: ran out of retries (last error = -32)" messages, but the issue apparently resolved itself. We've heard from several other 260 and X1 users, but none of them had this issue.

To debug this further, I would first be interested in knowing if the fix for another issue affecting the 260 and X1 (pen/touch doesn't work after rebooting into Linux from Windows) has any effect on this issue. That fix subtly changes the operation of the code which calls "wacom_set_report" (which is failing for you) -- perhaps enough to resolve this.

To do this, follow the instructions at [1], except downloading the driver from [2] instead of from Sourceforge. If all goes well, running `modinfo wacom | grep version` should show the version as "v2.00-UNKNOWN".

If that doesn't seem to do anything, it would be interesting to know if the device works properly in Windows. Its hard to say right now if this is a hardware issue or some subtle software bug that others haven't run into.


[1]: http://linuxwacom.sourceforge.net/wiki/index.php/input-wacom
[2]: https://github.com/linuxwacom/input-wacom/archive/jiri/for-4.6.zip
Comment 9 Robert de Rooy 2016-05-04 07:34:13 UTC
Thanks, I installed the driver and modinfo wacom indeed shows v2.00-UNKNOWN

Immediately after booting I notice that Pen is working (which has also been flaky, but less so then Finger), but Finger is not working.

dmesg shows no wacom errors for the moment.

As regarding Windows. It had Win10 on it originally and Pen and Finger worked in the short period that I tested it, which was probably around three hours before I wiped the disk and installed Fedora.

I do have the recovery media, but it would take a lot of time to put windows back on and test again (backing up my data first and such). Let me know if you think this is really necessary.

The machine has BIOS 1.11 which was the latest, until I just now noticed that 1.14 was published yesterday. Looking at the changelog there is nothing that should effect the wacom device, but regardless I will go ahead and update.
Comment 10 Robert de Rooy 2016-05-04 08:11:44 UTC
I installed the new BIOS (1.14) and as I suspected it made no noticeable difference.

A few more comments
- Pen does not work when Wayland is running (login screen, or starting the wayland desktop)
- since installing the v2.00UNKNOWN driver, the touch screen has not worked even once despite several reboots. No errors in the log though.
Comment 11 Jason Gerecke 2016-05-17 22:26:11 UTC
Apologies for the delay -- this slipped off my radar...

It would be good to get another evemu-record log to see if there's any difference between the stock driver and the v2.00-UNKNOWN you installed. Also, could you please try using the HID-replay[1] program to capture events from the touchscreen? After installing, you should only need to run `sudo hid-recorder > /tmp/touch.log`, select your touchscreen device, and then touch the screen a few times. Press CTRL+C to afterwards and attach the /tmp/touch.log file for review.

[1]: https://bentiss.github.io/hid-replay-docs/
Comment 12 Robert de Rooy 2016-05-18 09:35:50 UTC
Created attachment 123873 [details]
hid-recorder, touch not working with v2.00UNKNOWN driver

All tests with kernel 4.5.4-300.fc24.x86_64.

Please note, I can trigger the wacom_set_report: ran out of retries (last error = -32) error by putting the machine in suspend (to ram) and resuming it. Doing so will generate two entries each time.

Behavior has been identical for both the stock and patched wacom driver in all of this.

Also, when I say touch does not work, what I see is one of the following;
- touch causes mouse cursor to disappear, but I cannot interact with anything
OR
- mouse cursor follows finger for a bit, then vanishes, but again no interaction with anything on screen is possible

I also guess the pen not working in Wayland is a separate issue from the above.
Comment 13 Robert de Rooy 2016-05-18 09:36:25 UTC
Created attachment 123874 [details]
Broken touch with stock driver
Comment 14 Robert de Rooy 2016-05-18 09:36:52 UTC
Created attachment 123875 [details]
working touch with stock driver
Comment 15 Robert de Rooy 2016-05-18 09:40:40 UTC
Created attachment 123876 [details]
working touch with patched driver
Comment 16 Jason Gerecke 2016-05-27 00:05:14 UTC
(In reply to Robert de Rooy from comment #12)
> Also, when I say touch does not work, what I see is one of the following;
> - touch causes mouse cursor to disappear, but I cannot interact with anything
> OR
> - mouse cursor follows finger for a bit, then vanishes, but again no
> interaction with anything on screen is possible
> 

This (along with the provided hid-recorder dumps) strongly suggests that the kernel driver is working well enough and that the problem may be in userspace. I don't see anything strange when replaying the "broken" event stream locally, but that doesn't mean a whole lot. You might try uninstalling the xf86-input-wacom driver to see if the evdev / libinput driver works correctly with the touchscreen.

In the meantime, I'll try to grab a copy of the F24 alpha to see if replaying the event stream within it works any differently than on my current box.

> I also guess the pen not working in Wayland is a separate issue from the
> above.

Wayland pen support is still a work in progress. We recently had a protocol for stylus events accepted, but there's still additional protocol to finalize and then work to implement everything in the various compositors. Its slow going, but definitely in the works :)
Comment 17 Peter Hutterer 2016-05-27 06:11:43 UTC
I recommend grabbing libinput from git://git.freedesktop.org/git/wayland/libinput and building it with the gtk+ devel headers available. That gives you a binary in ./tools/event-gui that you can use for analysis. It brings up a GTK-window and displays what events libinput sees, independent of what X driver is in use. You'll need to run it as root though to have access to the event nodes.

If you see the touch circle in that tool follow your finger just fine then the problem is really in userspace. But given comment 5 I'm still thinking this is a kernel issue.
Comment 18 Peter Hutterer 2016-06-10 06:34:10 UTC
ping?
Comment 19 Robert de Rooy 2016-06-14 10:12:40 UTC
Sorry for the delay. I build the libinput debug tool and ran it.

Note that before testing, touch and pen where working, so this does not prove anything for now.

What I did notice was that there seems to be a calibration issue, it was putting the red dot for finger roughly a centimeter below where my finger actually was.

The same happened to the dot that appeared when I put the pen on the display, the dot was roughly a centimeter below the pen. Also the line being drawn was much exaggerated in movements and not below the pen either.

I don't notice this calibration issue outside of the debug tool.

I will try running the tool again, when touch or finger stops working.
Comment 20 Peter Hutterer 2016-06-14 10:35:10 UTC
The calibration issue is probably caused by the window decoration, we just map the touchscreen into the canvas so if the window bar is ca 1cm, you'll see that offset. That's nothing to worry about.

But if you say it's working now, can we close this as WORKSFORME and re-open when it comes back?
Comment 21 Robert de Rooy 2016-06-14 13:07:40 UTC
Well, as I indicated in the first post, it works when you just boot the machine, then at some point stops working.

And indeed, that is what happened again. Note, the machine has not been in suspend since being booted.
Finger stopped working, and pen still worked.

I ran the libinput debugging gui, and it does NOT detect finger events, but does detect pen.

I do however see quite a few of these in the log;
Jun 14 13:09:46 x1yoga /usr/libexec/gdm-x-session[1536]: (II) input device 'Wacom Co.,Ltd. Pen and multitouch sensor Finger', /dev/input/event7 is tagged by udev as: Touchscreen
Jun 14 13:09:46 x1yoga /usr/libexec/gdm-x-session[1536]: (II) input device 'Wacom Co.,Ltd. Pen and multitouch sensor Finger', /dev/input/event7 is a touch device
Jun 14 14:16:17 x1yoga /usr/libexec/gdm-x-session[1536]: (II) input device 'Wacom Co.,Ltd. Pen and multitouch sensor Finger', /dev/input/event7 is tagged by udev as: Touchscreen
Jun 14 14:16:17 x1yoga /usr/libexec/gdm-x-session[1536]: (II) input device 'Wacom Co.,Ltd. Pen and multitouch sensor Finger', /dev/input/event7 is a touch device
Jun 14 14:26:04 x1yoga /usr/libexec/gdm-x-session[1536]: (II) input device 'Wacom Co.,Ltd. Pen and multitouch sensor Finger', /dev/input/event7 is tagged by udev as: Touchscreen
Jun 14 14:26:04 x1yoga /usr/libexec/gdm-x-session[1536]: (II) input device 'Wacom Co.,Ltd. Pen and multitouch sensor Finger', /dev/input/event7 is a touch device
Jun 14 14:43:31 x1yoga /usr/libexec/gdm-x-session[1536]: (II) input device 'Wacom Co.,Ltd. Pen and multitouch sensor Finger', /dev/input/event7 is tagged by udev as: Touchscreen
Jun 14 14:43:31 x1yoga /usr/libexec/gdm-x-session[1536]: (II) input device 'Wacom Co.,Ltd. Pen and multitouch sensor Finger', /dev/input/event7 is a touch device

These seem to be being caused by the unlock of the lock screen. But why for the Finger device, but not for any other input device?
Comment 22 Robert de Rooy 2016-06-14 13:30:36 UTC
It may be that we have two bugs interacting with each other.

First I tried rebooting the ThinkPad, and touch still did not work, then I powered off the machine and started it back up, and touch still did not work. Then I powered it off and removed the power (cannot pull the battery in this model) and put it back and booted and touch again worked.

Then I did a few (3 or 4), lock/unlock of the screen cycles and touch again started to act strange. In this case, touching the screen worked as if it was a touchpad, so the mouse moved but I could not interact with anything. Not even by tapping the screen could I press buttons, although it would highlight them briefly. running the libinput debug tool, showed input events in this case. And after a bit, touch simply started working again, only to revert to the semi-working state moments later again, and again a bit later it worked again.

I again did a few lock screen/unlock events in a row and after another 4 or so, I got back again in the same semi-working state.

For the moment I still have not figured out how to get it into the state where it stops working completely on command.
Comment 23 Peter Hutterer 2016-08-03 08:10:19 UTC
any updates here? this is still a bit confusing :)
Comment 24 Peter Hutterer 2016-08-30 06:42:32 UTC
closing after 4 weeks of silence, please re-open if necessary
Comment 25 Robert de Rooy 2016-08-30 11:50:24 UTC
Problem has not changed.
Comment 26 Peter Hutterer 2017-01-04 07:24:38 UTC
Jason, any more comments? This looks like a kernel bug.
Comment 27 Jason Gerecke 2017-01-06 21:16:49 UTC
Does the following touchscreen firmware update apply to your model of Yoga? It claims to resolve issues that sound similar to what you're experiencing. Unfortunately, it looks like the updater can only be run from within Windows...
Comment 28 Jason Gerecke 2017-01-06 21:17:44 UTC
Link to touchscreen firmware update thread (forgot to add to prior comment):

https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/X1-Yoga-Type-20FQ-and-20FR-Touchscreen-Firmware/td-p/3345624
Comment 29 Robert de Rooy 2017-01-06 23:44:22 UTC
Thanks!

I have done the firmware update, and have tried to trigger the failure, and so far have not been able to. I put the system to sleep several times and so far, each time the touchscreen and pen input worked afterwards.

Let me give it a few days, but it seems that may have fixed it :-)
Comment 30 Robert de Rooy 2017-01-08 21:21:23 UTC
Closing as resolved as I have not been able to trigger the failure since doing the firmware update.


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