[Dell XPS 13] Horizontal/Vertical scrolling feature on touchpad [CyPS/2 Cypress Trackpad] does not work.

[Po-Hsu Lin]

CID: 201209-11840 Dell XPS 13

Both of the edge scrolling feature (horizontal and vertical) does not work on this system.

ubuntu@201209-11840:~$ xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ CyPS/2 Cypress Trackpad id=12 [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)]
    ↳ Laptop_Integrated_Webcam_1.3M id=10 [slave keyboard (3)]
    ↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)]
    ↳ Dell WMI hotkeys id=13 [slave keyboard (3)]

There is no E7 value in dmesg, and the only EC value is:
ubuntu@201209-11840:~$ cat /var/log/dmesg| grep EC
[ 0.156762] ACPI: EC: Look up EC in DSDT
[ 0.181523] ACPI: EC: GPE = 0x17, I/O: command/status = 0x66, data = 0x62

This problem does not exist in 12.04.2

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.8.0-29-generic 3.8.0-29.42~precise1 [modified: boot/vmlinuz-3.8.0-29-generic]
ProcVersionSignature: Ubuntu 3.8.0-29.42~precise1-generic 3.8.13.5
Uname: Linux 3.8.0-29-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.4
Architecture: amd64
Date: Wed Aug 28 22:40:56 2013
InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-lts-raring
UpgradeStatus: No upgrade log present (probably fresh install)
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.8.0-29-generic.
ApportVersion: 2.0.1-0ubuntu17.4
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: ALC275 Analog [ALC275 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 1558 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xd0510000 irq 45'
   Mixer name : 'Intel PantherPoint HDMI'
   Components : 'HDA:10ec0275,1028058b,00100008 HDA:80862806,80860101,00100000'
   Controls : 29
   Simple ctrls : 11
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=7cf28595-73f5-41ba-b4a2-c7839c56eaec
InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
MachineType: Dell Inc. Dell System XPS L322X
MarkForUpload: True
Package: linux (not installed)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-29-generic.efi.signed root=UUID=f0ed3242-8409-4aac-b950-6e8b8cd1ff74 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.8.0-29.42~precise1-generic 3.8.13.5
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-29-generic N/A
 linux-backports-modules-3.8.0-29-generic N/A
 linux-firmware 1.79.6
Tags: precise running-unity
Uname: Linux 3.8.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 04/18/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnDellInc.:bvrA08:bd04/18/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr0.1:
dmi.product.name: Dell System XPS L322X
dmi.sys.vendor: Dell Inc.

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Po-Hsu Lin (cypressyew)]

apport information

[Brad Figg (brad-figg)]

This change was made by a bot.

[Jesse Sung (wenchien)]

Re-installed 12.04.2 and found that:

* On a fresh installed 12.04.2 with kernel 3.5.0-23, edge scroll works.
* After a system upgrade, kernel bumped to 3.5.0-40, and edge scroll stops working.
* Use the same file system above and boot with 3.5.0-23, edge scroll works again.

Something between 3.5.0-23 and 3.5.0-40 breaks the edge scroll support.

[Jesse Sung (wenchien)]

The breakage is between 3.5.0-27 and 3.5.0-28.

[Anthony Wong (anthonywong)]

@jesse, wonder if the latest kernel has fixed this?

[Po-Hsu Lin (cypressyew)]

Hello Anthony, Jesse
Verified with 14.04.1 stock image (3.13.0-32)
Both horizontal / vertical scrolling (two-finger) are working now.

Therefore I will mark this bug as fix-released.
Thanks

[Po-Hsu Lin (cypressyew)]

BTW, with some more test, I found that the edge scrolling (both vertical and horizontal) are still not working.
Not even with 3.16 kernel (14.04.2 stock image)
I will revert the bug status after confirming this is a blocker.

[Po-Hsu Lin (cypressyew)]

Base on our certificate coverage guide, it will be a blocker if edge scrolling does not work, I will revert the bug status to confirmed, thanks!

[Po-Hsu Lin (cypressyew)]

Verified with the latest 3.13 kernel (3.13.0-46), it's still not working.
Also not working with 14.10 LiveUSB, not working with the latest mainline kernel 4.0.0-rc4

[Jesse Sung (wenchien)]

This is caused by the fix of lp:1103594.

The vital_statics_supported is disabled for fw_version >= 11 because it would introduce errors on XPS12. However the scrolling feature depends on the vital_statics_supported, and the touchpad of XPS13 reports that its fw_version is 11. I've tried to enable vital_statics_supported on XPS13 and found that scrolling works again.