Possibly related: https://gitlab.gnome.org/GNOME/mutter/-/issues/1356
** Package changed: xorg (Ubuntu) => xserver-xorg-input-libinput (Ubuntu) ** Also affects: mutter (Ubuntu) Importance: Undecided Status: New ** Bug watch added: gitlab.gnome.org/GNOME/mutter/-/issues #1356 https://gitlab.gnome.org/GNOME/mutter/-/issues/1356 ** Tags added: multimonitor touch touchscreen -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1891948 Title: Touchscreen support with multiple screens: pointer location proportional to all screens instead of the touchscreen only Status in xorg-server package in Ubuntu: New Status in xserver-xorg-input-libinput package in Ubuntu: New Bug description: Touchscreen support seems broken with multiple screens. * Screen 1: Laptop touchscreen * Screen 2: HDMI external non-touch screen (at the right of screen 1) While touchscreen works as expected when no external screen is connected, with both screens there is a touchscreen scaling issue: Press at the very left of the touchscreen: the pointer matches your finger. Now swipe slowly to the right: the more you progress, bigger the difference between your finger and the pointer is. Stop swiping at the very right of the touchscreen: the pointer matches the very right of the non-touch screen. See the enclosed drawing that illustrates the issue as well as the bug report (added by apport). ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 Uname: Linux 5.4.0-42-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia .proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] est un dossier: '/proc/driver/nvidia/gpus/0000:01:00.0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.suspend: suspend hibernate resume .proc.driver.nvidia.suspend_depth: default modeset uvm .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 440.100 Fri May 29 08:45:51 UTC 2020 GCC version: ApportVersion: 2.20.11-0ubuntu27.6 Architecture: amd64 BootLog: Error: [Errno 13] Permission non accordée: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: MATE Date: Tue Aug 18 01:12:24 2020 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu DkmsStatus: virtualbox, 6.1.10, 5.4.0-40-generic, x86_64: installed virtualbox, 6.1.10, 5.4.0-42-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation UHD Graphics 620 (Whiskey Lake) [8086:3ea0] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Huawei Technologies Co., Ltd. UHD Graphics 620 (Whiskey Lake) [19e5:3e13] Subsystem: Huawei Technologies Co., Ltd. GP108BM [GeForce MX250] [19e5:3e13] InstallationDate: Installed on 2020-05-30 (79 days ago) InstallationMedia: Ubuntu-MATE 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: HUAWEI MACHR-WX9 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic root=UUID=225d8502-abbf-4298-b1c0-dddd1f895f9c ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/28/2019 dmi.bios.vendor: HUAWEI dmi.bios.version: 1.19 dmi.board.asset.tag: N/A dmi.board.name: MACHR-WX9-PCB dmi.board.vendor: HUAWEI dmi.board.version: M1080 dmi.chassis.asset.tag: N/A dmi.chassis.type: 10 dmi.chassis.vendor: HUAWEI dmi.chassis.version: M1080 dmi.modalias: dmi:bvnHUAWEI:bvr1.19:bd10/28/2019:svnHUAWEI:pnMACHR-WX9:pvrM1080:rvnHUAWEI:rnMACHR-WX9-PCB:rvrM1080:cvnHUAWEI:ct10:cvrM1080: dmi.product.family: MateBook X dmi.product.name: MACHR-WX9 dmi.product.sku: C100 dmi.product.version: M1080 dmi.sys.vendor: HUAWEI version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1891948/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp