This change was made by a bot.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1990760
Title:
Accessibility Zoom high CPU usage
Status in linux package in Ubuntu:
Confirmed
Bug description:
After turning on Accessibility Zoom, with low brightens and high color
options, cursor has problems with being visible, it moves slowly, and
CPU is using too much resources to handle it.
For contrast, turning on "Large Text" in the Accessibility menu
doesn't cause any of these issues.
I don't remember that Zoom option in Accessability menu worked as
expected at any point in history, so I don't think it's related to my
current OS version.
Setup:
OS: Ubuntu 22.04.1 LTS x86_64
Host: 20T6000TPB ThinkPad E14 Gen 2
Kernel: 5.15.0-47-generic
Uptime: 12 days, 22 hours, 5 mins
Packages: 4521 (dpkg), 58 (brew), 13 (flatpak), 83 (snap)
Shell: zsh 5.8.1
Resolution: 4384x2466
DE: GNOME 42.4
WM: Mutter
WM Theme: Adwaita
Theme: Yaru-dark [GTK2/3]
Icons: Yaru [GTK2/3]
Terminal: tmux
CPU: AMD Ryzen 5 4500U with Radeon Graphics (6) @ 2.375GHz
GPU: AMD ATI 05:00.0 Renoir
External, single monitor, resolution 3840x2160, scale 175%.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.15.0-47-generic 5.15.0-47.51
ProcVersionSignature: Ubuntu 5.15.0-47.51-generic 5.15.46
Uname: Linux 5.15.0-47-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: as 729706 F.... pulseaudio
/dev/snd/controlC1: as 729706 F.... pulseaudio
/dev/snd/controlC0: as 729706 F.... pulseaudio
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Sun Sep 25 12:28:27 2022
InstallationDate: Installed on 2020-12-06 (657 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
MachineType: LENOVO 20T6000TPB
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-47-generic
root=UUID=a5796f3d-37a8-428b-aa28-c160ea77bc9b ro quiet splash vt.handoff=7
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions:
linux-restricted-modules-5.15.0-47-generic N/A
linux-backports-modules-5.15.0-47-generic N/A
linux-firmware 20220329.git681281e4-0ubuntu3.5
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/06/2021
dmi.bios.release: 1.16
dmi.bios.vendor: LENOVO
dmi.bios.version: R1AET40W (1.16 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20T6000TPB
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.16
dmi.modalias:
dmi:bvnLENOVO:bvrR1AET40W(1.16):bd09/06/2021:br1.16:efr1.16:svnLENOVO:pn20T6000TPB:pvrThinkPadE14Gen2:rvnLENOVO:rn20T6000TPB:rvrNotDefined:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20T6_BU_Think_FM_ThinkPadE14Gen2:
dmi.product.family: ThinkPad E14 Gen 2
dmi.product.name: 20T6000TPB
dmi.product.sku: LENOVO_MT_20T6_BU_Think_FM_ThinkPad E14 Gen 2
dmi.product.version: ThinkPad E14 Gen 2
dmi.sys.vendor: LENOVO
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