Public bug reported: This seems to have become repeatable, and applies even on the first login session immediately after booting the computer. I don't know if this is the right package to report against; another possible culprit: gdm:
When I log into the default "Ubuntu" session (ie: on xorg), gdm's mouse pointer remains on screen during the screen blank, and after the gnome desktop comes up. It stays on the top just like you'd expect of the mouse pointer, but it's immobile and unresponsive. It's left at the same position on the screen that it was while using gdm, and is the same size as it was in gdm (ie: gdm is not scaled, but gnome session desktop scaled to 150% - the *working* in-session mouse pointer is also 150% larger than gdm's dead one). It looks like gdm and gnome are running in the same x11 session? Seeing as the mouse pointer stays solid *during* the transition from gdm into the gnome desktop. Not even a flicker. It's almost as if we're trying to have smooth transitions for these sorts of things, which is good of course, but maybe is a bug in that? It disappears when I log into a Wayland session, it appears only to affect x11 sessions. I've taken to just moving the mouse pointer to the far bottom right corner of the screen before logging in, so at least it's not very intrusive. There are a few reports of similar in askubuntu from a few years back, but with no helpful or applicable solution. eg: https://askubuntu.com/questions/521241/i-have-two-cursors-on-my-screen-one-of-which-is-always-on-top-and-will-never-mo https://askubuntu.com/questions/598096/14-04-second-mouse-pointer-stuck-in-middle-of-the-screen To answer the points made there, the xinput --list output is shown below. Executing that command and rebooting makes no difference. In the Displays Prefs there is no second "Unknown" display to disable. (The machine has precisely one display, and that's all Settings sees. It's a desktop, not a laptop, and it only has an AMD Vega integrated graphics. It also has only one mouse.) rachel@twilight:~$ xinput --list ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ HID 04b4:3003 Mouse id=9 [slave pointer (2)] ⎜ ↳ HID 04b4:3003 Consumer Control id=11 [slave pointer (2)] ⎜ ↳ Microsoft Microsoft® Nano Transceiver v1.0 Mouse id=15 [slave pointer (2)] ⎜ ↳ Microsoft Microsoft® Nano Transceiver v1.0 Consumer Control id=16 [slave pointer (2)] ⎜ ↳ Microsoft Microsoft® Nano Transceiver v1.0 Consumer Control id=17 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Power Button id=7 [slave keyboard (3)] ↳ HID 04b4:3003 id=8 [slave keyboard (3)] ↳ HID 04b4:3003 System Control id=10 [slave keyboard (3)] ↳ HID 04b4:3003 Keyboard id=12 [slave keyboard (3)] ↳ Dell Dell AC511 USB SoundBar id=13 [slave keyboard (3)] ↳ Microsoft Microsoft® Nano Transceiver v1.0 id=14 [slave keyboard (3)] ↳ Microsoft Microsoft® Nano Transceiver v1.0 System Control id=18 [slave keyboard (3)] ↳ Eee PC WMI hotkeys id=19 [slave keyboard (3)] ↳ HID 04b4:3003 Consumer Control id=20 [slave keyboard (3)] ↳ Microsoft Microsoft® Nano Transceiver v1.0 Consumer Control id=21 [slave keyboard (3)] ↳ Microsoft Microsoft® Nano Transceiver v1.0 Consumer Control id=22 [slave keyboard (3)] (I don't know what's with the duplicated MS Nano Transceiver Consumer Control entries) I thought of a couple of things to try after starting to write this ticket but didn't want to lose the ticket in progress, so will add comments if they show up anything. In particular, I am running the experimental feature to enable xrandr fractional scaling. This issue didn't show up right after enabling that, only a couple of days later, so it didn't seem immediately relevant. Also, trying with a different pointing device attached in case that transceiver is doing something odd. (never had problems before, had it years, no idea if that doubling-up has always been there.) ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: ubuntu-session 3.32.0-1ubuntu1 ProcVersionSignature: Ubuntu 5.0.0-15.16-generic 5.0.6 Uname: Linux 5.0.0-15-generic x86_64 ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Wed May 15 11:38:19 2019 InstallationDate: Installed on 2019-05-11 (3 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) PackageArchitecture: all SourcePackage: gnome-session UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: gnome-session (Ubuntu) Importance: Undecided Status: New ** Affects: mutter (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug disco -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1829221 Title: second, dead, mouse pointer left on screen after login, x11 session To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1829221/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
