You have been subscribed to a public bug: 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 ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug groovy synaptics touchscreen ubuntu -- Dell XPS 13 Synaptics touch screen does not work after boot but will work after resume from sleep? https://bugs.launchpad.net/bugs/1909944 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp