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The bug has to do with mouse scrolling and switching windows; I do not
know which package it is part of.
The problem arises when I have two windows of two different applications
open, such as Google Chrome and a text editor. To reproduce the error, I
have Google Chrome open initially, then I switch tabs (using the
shortcut Alt-Tab) to the text editor, then scroll around on the text
editor. When I Alt-Tab back to Google Chrome, my first scroll leads to
the page jumping by a large amount either up or down before resuming
regular mouse scrolling. It is only this initial scroll after switching
tabs that jumps like this. It also happens regardless of whether I use a
mouse or the touch pad.
I also notice, given the same scenario, if I scroll up on the text
editor, the Google Chrome initial scroll jump will be upward. If I
scroll down on the text editor, the Chrome jump will be downward. If I
scroll a lot in the text editor, the Chrome jump will be large. If I
scroll a small amount in the text editor, the Chrome jump will be small.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xorg 1:7.7+19ubuntu7.1
ProcVersionSignature: Ubuntu 5.3.0-40.32~18.04.1-generic 5.3.18
Uname: Linux 5.3.0-40-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.11
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Fri Mar 20 17:17:39 2020
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA
controller])
Subsystem: Hewlett-Packard Company UHD Graphics 620 [103c:83b9]
InstallationDate: Installed on 2020-01-26 (54 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 8087:0a2b Intel Corp.
Bus 001 Device 002: ID 04f2:b593 Chicony Electronics Co., Ltd
Bus 001 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HP HP Spectre x360 Convertible 13-ae0xx
ProcEnviron:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-40-generic
root=UUID=7cfa547e-7b38-4467-9a1c-5f581ce738c1 ro quiet splash vt.handoff=1
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/07/2019
dmi.bios.vendor: AMI
dmi.bios.version: F.24
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 83B9
dmi.board.vendor: HP
dmi.board.version: 56.43
dmi.chassis.type: 31
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnAMI:bvrF.24:bd01/07/2019:svnHP:pnHPSpectrex360Convertible13-ae0xx:pvr:rvnHP:rn83B9:rvr56.43:cvnHP:ct31:cvrChassisVersion:
dmi.product.family: 103C_5335KV HP Spectre
dmi.product.name: HP Spectre x360 Convertible 13-ae0xx
dmi.product.sku: 1WU65AV
dmi.sys.vendor: HP
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.99-1ubuntu1~18.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.8-0ubuntu0~18.04.3
version.libgl1-mesa-glx: libgl1-mesa-glx 19.2.8-0ubuntu0~18.04.3
version.xserver-xorg-core: xserver-xorg-core N/A
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
** Affects: mutter (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic ubuntu
--
Scrolling jumps after switching windows
https://bugs.launchpad.net/bugs/1868332
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