Mouse events stop being propagated to most of the application windows when VirtualBox is running

[Jaroslaw Jaryszew]

Bug starts replicating randonly after unlocking the screen.

Mouse events stop being propageted to windows of most of the applications. That includes Window decorator. Windows also cannot be dragged. Keyboard events work fine.

Problem does not affect the desktop, notification and activities bar, lock screen, launcher, settings, terminal, gnome-text-editor, Ubuntu Software.

Problem was reproduced with applications: Google Chrome, MS Edge, Firefox, VS Code, Oracle Virtual Box, Gimp....

Only way to recover right now is to restart system.

ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 6.2.0-20.20-generic 6.2.6
Uname: Linux 6.2.0-20-generic x86_64
ApportVersion: 2.26.1-0ubuntu2
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Mon May 8 14:29:24 2023
DistUpgraded: 2023-04-21 18:19:49,810 DEBUG icon theme changed, re-reading
DistroCodename: lunar
DistroVariant: ubuntu
DkmsStatus: virtualbox/7.0.6, 6.2.0-20-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Lucienne [1002:164c] (rev c1) (prog-if 00 [VGA controller])
   Subsystem: Dell Lucienne [1028:0a77]
InstallationDate: Installed on 2023-04-13 (24 days ago)
InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1)
MachineType: Dell Inc. Inspiron 5415
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.2.0-20-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to lunar on 2023-04-21 (16 days ago)
dmi.bios.date: 02/13/2023
dmi.bios.release: 1.15
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.15.0
dmi.board.name: 0WKFHK
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 1.15.0
dmi.modalias: dmi:bvnDellInc.:bvr1.15.0:bd02/13/2023:br1.15:svnDellInc.:pnInspiron5415:pvr1.15.0:rvnDellInc.:rn0WKFHK:rvrA00:cvnDellInc.:ct10:cvr1.15.0:sku0A77:
dmi.product.family: Inspiron
dmi.product.name: Inspiron 5415
dmi.product.sku: 0A77
dmi.product.version: 1.15.0
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.114-1
version.libgl1-mesa-dri: libgl1-mesa-dri 23.0.2-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 23.0.2-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:21.1.7-1ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1

[Jaroslaw Jaryszew (zaytzevo)]

Just realized that it was caused by VirtualBox. After closing guest OS the mouse started to work properly again.

[Daniel van Vugt (vanvugt)]

Sounds like VirtualBox had a "grab" on the mouse.