Touchscreen Unresponsive in Focal, but Works in Eoan

[David Krauser]

After upgrading my Surface Go to Focal from Eoan, the touchscreen has stopped working.

A snippet from journalctl:

12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) systemd-logind: got fd for /dev/input/event4 13:68 fd 28 paused 0
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (**) ELAN9038:00 04F3:261A: always reports core events
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (**) Option "Device" "/dev/input/event4"
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (**) Option "_source" "server/udev"
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) event4 - ELAN9038:00 04F3:261A: is tagged by udev as: Touchscreen
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) event4 - ELAN9038:00 04F3:261A: device is a touch device
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) event4 - ELAN9038:00 04F3:261A: device removed
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-1/i2c-ELAN9038:00/0018:04F3:261A.0001/input/input20/event4"
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) XINPUT: Adding extended input device "ELAN9038:00 04F3:261A" (type: TOUCHSCREEN, id 11)
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (**) Option "AccelerationScheme" "none"
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (**) ELAN9038:00 04F3:261A: (accel) selected scheme none/0
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (**) ELAN9038:00 04F3:261A: (accel) acceleration factor: 2.000
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (**) ELAN9038:00 04F3:261A: (accel) acceleration threshold: 4
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) event4 - ELAN9038:00 04F3:261A: is tagged by udev as: Touchscreen
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) event4 - ELAN9038:00 04F3:261A: device is a touch device
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) config/udev: Adding input device ELAN9038:00 04F3:261A (/dev/input/mouse0)
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) No input driver specified, ignoring this device.
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) This device may have been added with another device file.
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) config/udev: Adding input device ELAN9038:00 04F3:261A (/dev/input/event5)
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (**) ELAN9038:00 04F3:261A: Applying InputClass "libinput tablet catchall"
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) Using input driver 'libinput' for 'ELAN9038:00 04F3:261A'
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) systemd-logind: got fd for /dev/input/event5 13:69 fd 29 paused 0
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (**) ELAN9038:00 04F3:261A: always reports core events
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (**) Option "Device" "/dev/input/event5"
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (**) Option "_source" "server/udev"
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) event5 - ELAN9038:00 04F3:261A: is tagged by udev as: Tablet
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) event5 - ELAN9038:00 04F3:261A: tablet 'ELAN9038:00 04F3:261A' unknown to libwacom
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) event5 - ELAN9038:00 04F3:261A: device is a tablet
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) event5 - ELAN9038:00 04F3:261A: device removed
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-1/i2c-ELAN9038:00/0018:04F3:261A.0001/input/input23/event5"
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) XINPUT: Adding extended input device "ELAN9038:00 04F3:261A" (type: TABLET, id 12)
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) event5 - ELAN9038:00 04F3:261A: is tagged by udev as: Tablet
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) event5 - ELAN9038:00 04F3:261A: tablet 'ELAN9038:00 04F3:261A' unknown to libwacom
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) event5 - ELAN9038:00 04F3:261A: device is a tablet
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) config/udev: Adding input device ELAN9038:00 04F3:261A (/dev/input/mouse1)
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) No input driver specified, ignoring this device.
12:43:15 /usr/lib/gdm3/gdm-x-session[1586]: (II) This device may have been added with another device file.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-14-generic 5.4.0-14.17
ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
Uname: Linux 5.4.0-14-generic x86_64
ApportVersion: 2.20.11-0ubuntu18
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: david 1694 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Tue Mar 3 02:27:15 2020
InstallationDate: Installed on 2020-01-29 (33 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 045e:096f Microsoft Corp. Surface Type Cover
 Bus 001 Device 002: ID 0cf3:e302 Qualcomm Atheros Communications
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Microsoft Corporation Surface Go
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-14-generic root=/dev/mapper/vgubuntu-root ro
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-14-generic N/A
 linux-backports-modules-5.4.0-14-generic N/A
 linux-firmware 1.186
SourcePackage: linux-5.4
StagingDrivers: ipu3_imgu
UpgradeStatus: Upgraded to focal on 2020-01-30 (33 days ago)
dmi.bios.date: 12/12/2018
dmi.bios.vendor: Microsoft Corporation
dmi.bios.version: 1.0.14
dmi.board.name: Surface Go
dmi.board.vendor: Microsoft Corporation
dmi.chassis.type: 9
dmi.chassis.vendor: Microsoft Corporation
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnMicrosoftCorporation:bvr1.0.14:bd12/12/2018:svnMicrosoftCorporation:pnSurfaceGo:pvr1:rvnMicrosoftCorporation:rnSurfaceGo:rvr:cvnMicrosoftCorporation:ct9:cvrChassisVersion:
dmi.product.family: Surface
dmi.product.name: Surface Go
dmi.product.sku: Surface_Go_1824_Consumer
dmi.product.version: 1
dmi.sys.vendor: Microsoft Corporation

[Francis Ginther (fginther)]

@davidkrauser,

Are you able/willing to post a dmesg output from both the failing and the last working kernel? This should show any firmware that's being loaded (or not loaded) for the touchscreen.

[David Krauser (davidkrauser)]

With kernel version 5.3.0, the touchscreen works. Attaching a dmesg with this kernel.

[David Krauser (davidkrauser)]

With kernel version 5.4.0, the touchscreen does not work. Attaching a dmesg with this kernel.

[Francis Ginther (fginther)]

This looks likely to be the same bug: https://bugzilla.kernel.org/show_bug.cgi?id=206259

Both patches are in linux upstream:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/include/linux/hid.h?id=84a4062632462c4320704fcdf8e99e89e94c0aba
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/hid/hid-core.c?id=5ebdffd25098898aff1249ae2f7dbfddd76d8f8f

That's all I have at the moment. Will look at this some more when I have time again.

[Francis Ginther (fginther)]

@davidkrauser,

These patches are included in the v5.4.24 upstream stable release, lp:1866333, which just landed in version 5.4.0-18.22 now in -proposed. If you want to test it out early, you can either enable -proposed, or enable this ppa: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/proposed (if you want to avoid dragging in all of -proposed just to test this kernel). You can also wait until this kernel is promoted to -release.

Either way, please test with version 5.4.0-18.22 and let me know if this fixes the issue.

[David Krauser (davidkrauser)]

@fginther,

The touchscreen works great with the -proposed kernel, thanks.

[Seth Forshee (sforshee)]

The focal-proposed kernel is now released, so marking this bug fix released.