Yes I would expect Xorg to be slightly better right now. For reasons unknown as yet, moving the mouse in a Wayland session forces the GPU to redraw everything which will slow it down and stutter more. But in Xorg sessions the mouse pointer can move freely without the GPU having to redraw anything.
I'm surprised you see a difference with lowlatency kernels, but if it works for you then great. So this is a general performance bug. Even though the system is over 10 years old I think it should be performing better, but know that gnome- shell is not yet fast enough for most machines, even new ones. I will continue working though the lists of performance problems here: https://trello.com/c/Q6JYXPPs https://trello.com/c/pe5mRmx7 and hopefully in future we will have good enough performance to close this bug. ** Summary changed: - stuttering mouse movement after any shell window opens + Stuttering mouse movement after any shell window opens, on AMD Athlon(tm) 64 X2 with Radeon HD 3450 ** Also affects: mutter (Ubuntu) Importance: Undecided Status: New ** Changed in: mutter (Ubuntu) Status: New => Triaged ** Changed in: gnome-shell (Ubuntu) Importance: Undecided => Medium ** Changed in: mutter (Ubuntu) Importance: Undecided => Medium ** Changed in: gnome-shell (Ubuntu) Status: Incomplete => Triaged -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1772271 Title: Stuttering mouse movement after any shell window opens, on AMD Athlon(tm) 64 X2 with Radeon HD 3450 Status in gnome-shell package in Ubuntu: Triaged Status in mutter package in Ubuntu: Triaged Bug description: mouse stutters when moving. This started after update from Ubuntu 16 to 18. Mouse is fine on initial boot, but after any shell window opens, the mouse then stutters in its movement. clicks work fine. almost looks like mouse is not getting its irq interrupts. Description: Ubuntu 18.04 LTS Release: 18.04 also getting this error: ~$ apport-bug gtk (apport-gtk:18122): Gtk-WARNING **: 11:21:15.632: Theme parsing error: gtk-main.css:73:38: Failed to import: Error opening file /usr/share/themes/Radiance/gtk-3.20/apps/gnome-builder.css: No such file or directory dpkg-query: no packages found matching gtk Gtk-Message: 11:21:20.142: GtkDialog mapped without a transient parent. This is discouraged. peter@peter-GeForce6100PM-M2:~$ apport-bug light-themes (apport-gtk:19203): Gtk-WARNING **: 11:29:01.986: Theme parsing error: gtk-main.css:73:38: Failed to import: Error opening file /usr/share/themes/Radiance/gtk-3.20/apps/gnome-builder.css: No such file or directory peter@peter-GeForce6100PM-M2:~$ (firefox:19566): Gtk-WARNING **: 11:30:11.449: Theme parsing error: gtk-main.css:73:38: Failed to import: Error opening file /usr/share/themes/Radiance/gtk-3.20/apps/gnome-builder.css: No such file or directory light-themes: Installed: 16.10+18.04.20180421.1-0ubuntu1 Candidate: 16.10+18.04.20180421.1-0ubuntu1 Version table: *** 16.10+18.04.20180421.1-0ubuntu1 500 500 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 Packages 500 http://us.archive.ubuntu.com/ubuntu bionic/main i386 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: light-themes 16.10+18.04.20180421.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-20.21-lowlatency 4.15.17 Uname: Linux 4.15.0-20-lowlatency x86_64 ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sun May 20 11:29:02 2018 InstallationDate: Installed on 2015-10-24 (938 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: ubuntu-themes UpgradeStatus: Upgraded to bionic on 2018-05-06 (14 days ago) --- ApportVersion: 2.20.9-0ubuntu7.1 Architecture: amd64 CurrentDesktop: ubuntu:GNOME DisplayManager: gdm3 DistroRelease: Ubuntu 18.04 GsettingsChanges: b'org.gnome.shell' b'app-picker-view' b'uint32 1' b'org.gnome.shell' b'favorite-apps' redacted by apport b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'" b'org.gnome.desktop.interface' b'icon-theme' b"'oxygen'" b'org.gnome.desktop.interface' b'gtk-theme' b"'Radiance'" InstallationDate: Installed on 2015-10-24 (952 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) Package: gnome-shell 3.28.1-0ubuntu2 PackageArchitecture: amd64 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 4.15.0-22.24-lowlatency 4.15.17 Tags: bionic Uname: Linux 4.15.0-22-lowlatency x86_64 UpgradeStatus: Upgraded to bionic on 2018-05-06 (27 days ago) UserGroups: adm audio cdrom dialout dip fax floppy lpadmin netdev plugdev sambashare sudo tape vboxusers video _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1772271/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
