Dell XPS 13 9333 Synaptics touch screen does not work after boot but will work after resume from sleep?

[Attila]

I freshly installed Ubuntu 20.10 and noticed that the touch screen does not work. Tried xinput --list and then xinput disable/enable [correct-id] but with no avail.

However, if I close the laptop lid and open it, after the system resumes from sleep, the touch screen starts working.

BUT, another anomaly happens, this could not necessarily be after the 1st resume from sleep, it could be the 2nd+ ---> the "Windows" key on the keyboard stops working? So, I can't start apps by type and search? And when this happens, the whole screen sometimes freezes and becomes unresponsive ex. moving around the mouse (synaptic touch pad and not touchscreen), no matter where I click, no reaction... I tried CTRL+ALT+F1 then switch back and somehow it started working again? It also happened, that the synaptic touch pad was not moving the mouse cursor on the screen (and the mouse cursor just disappeared)? Luckily, the keyboard was still reacting for the CTRL+ALT+T and the terminal window showed up, from where I used sudo modprobe -r psmouse and then sudo modprobe psmouse and also xinput disable/enable [touch-pad-id] and it got back to work.

Many things happen in this one bug it seems?

NOTE: when running 20.10 from USB (Live CD), then the touchscreen works perfectly! Only after install do these anomalies happen?

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: xorg 1:7.7+19ubuntu15
ProcVersionSignature: Ubuntu 5.8.0-33.36-generic 5.8.17
Uname: Linux 5.8.0-33-generic x86_64
ApportVersion: 2.20.11-0ubuntu50.3
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sun Jan 3 22:55:01 2021
DistUpgraded: Fresh install
DistroCodename: groovy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
   Subsystem: Dell Haswell-ULT Integrated Graphics Controller [1028:060a]
InstallationDate: Installed on 2021-01-01 (2 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
MachineType: Dell Inc. XPS13 9333
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-33-generic root=UUID=fe6e5482-378f-4c13-9039-8b11eba4af45 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/31/2015
dmi.bios.release: 0.1
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.name: 0D13CR
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnDellInc.:bvrA08:bd08/31/2015:br0.1:svnDellInc.:pnXPS139333:pvr:rvnDellInc.:rn0D13CR:rvrA00:cvnDellInc.:ct8:cvr0.1:
dmi.product.family: Shark Bay System
dmi.product.name: XPS13 9333
dmi.product.sku: 060A
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.102-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.1-1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200714-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Daniel van Vugt (vanvugt)]

Please try selecting 'Ubuntu on Wayland' on the login screen, just before you enter your password. Does the touch screen work any better in a Wayland session?

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Attila (usingubuntu)]

UPDATE: I tried switching to 'Ubuntu on Wayland' but touchscreen still does not work after login.

[Attila (usingubuntu)]

UPDATE: To correct the bug description: After a reboot @ the login screen, touchscreen works. But after entering my password and log in to the desktop, touchscreen stops working (no matter whether it's the 'Ubuntu' or 'Ubuntu on Wayland' session).

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 20.10 (groovy) reached end-of-life on July 22, 2021.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in.