[Bug]: when mousepointer captured : two mouse pointers (host + guest) + mouse jumping

[schwidom]

Version

7.2.6

Host OS Type

Linux

Host OS name + version

Debian 11 Kernel 5.10.0-29-amd64 #1 SMP Debian 5.10.216-1 (2024-05-03) x86_64 GNU/Linux

Host Architecture

x86

Guest OS Type

Linux

Guest Architecture

x86

Guest OS name + version

Debian 13

Component

Other

What happened?

When I start the VM and let it capture the mousepointer then (a) the host mousepointer is still visible on that host monitor (and only there) where I confirmed the capture mousepointer dialog.
And (b) the mousepointer in the guest OS is jumping sometimes.
It does not matter on which state the installed guest OS is, this effect (a) can already be seen when the guest OS shows only the bootscreen. When the mouse integration later kicks it is then it is in a kindof seamless state - let I recapture the mousepointer again the effect is visible again.

I expect in that case that the mousepointer of the host is not visible.

It is visible but cannot drag somehing. It moves quasi parallel (not really) to the mousepointer in the guest system when the guestsystem is fully booted. But when it touches the right border it continues left and vice versa and also top/bottom. It is optically disturbing to see 2 mousepointers. And I guess this mouse hopping in the Guest (b) is linked to that problem.

Here is my system:

$ inxi -F
System:
Host: debian64 Kernel: 5.10.0-29-amd64 arch: x86_64 bits: 64 Desktop: Xfce
v: 4.16.0 Distro: Debian GNU/Linux 11 (bullseye)
Machine:
Type: Desktop System: Micro-Star product: GT72 2QD v: REV:0.C
serial:
Mobo: Micro-Star model: MS-1781 v: REV:0.C serial:
UEFI: American Megatrends v: E1781IMS.10E date: 09/24/2014
Battery:
ID-1: BAT1 charge: 0% condition: 67.4/1.3 Wh (5063.3%)
CPU:
Info: quad core model: Intel Core i7-4710HQ bits: 64 type: MT MCP cache:
L2: 1024 KiB
Speed (MHz): avg: 1905 min/max: 800/3500 cores: 1: 2438 2: 2398 3: 1156
4: 1466 5: 1618 6: 1941 7: 1825 8: 2404
Graphics:
Device-1: NVIDIA GM204M [GeForce GTX 960 OEM / 970M] driver: nvidia
v: 570.153.02
Display: x11 server: X.Org v: 1.20.11 with: Xwayland driver: X:
loaded: nvidia gpu: nvidia resolution: 1: 1920x1080~60Hz 2: 1920x1080
API: OpenGL v: 4.6.0 NVIDIA 570.153.02 renderer: NVIDIA GeForce GTX
970M/PCIe/SSE2
Audio:
Device-1: Intel 8 Series/C220 Series High Definition Audio
driver: snd_hda_intel
Device-2: NVIDIA GM204 High Definition Audio driver: snd_hda_intel
API: ALSA v: k5.10.0-29-amd64 status: kernel-api
Server-1: PulseAudio v: 14.2 status: active
Network:
Device-1: Qualcomm Atheros Killer E220x Gigabit Ethernet driver: alx
IF: eth0 state: up speed: 1000 Mbps duplex: full mac: 44:8a:5b:ee:1c:42
Device-2: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter
driver: ath10k_pci
IF: wlp4s0 state: down mac: 10:08:b1:8a:9f:03
Device-3: Realtek RTL8153 Gigabit Ethernet Adapter type: USB driver: r8152
IF: enx00133ba828f6 state: up speed: 1000 Mbps duplex: full
mac: 00:13:3b:a8:28:f6
IF-ID-1: docker0 state: down mac: 02:42:39:ac:3b:06
IF-ID-2: vboxnet0 state: down mac: 0a:00:27:00:00:00
Bluetooth:
Device-1: Qualcomm Atheros AR3012 Bluetooth 4.0 type: USB driver: btusb
Report: hciconfig ID: hci0 state: up address: 10:08:B1:8A:9F:04 bt-v: 2.1
RAID:
Hardware-1: Intel 82801 Mobile SATA Controller [RAID mode] driver: ahci
Device-1: md126 type: mdraid level: raid-0 status: active size: 238.48 GiB
report: N/A
Components: Online: 0: sdb 1: sda
Device-2: md127 type: mdraid level: N/A status: inactive size: N/A
report: N/A
Components: Online: N/A Spare: 0: sdb 1: sda
Drives:
Local Storage: total: 3.87 TiB used: 2.76 TiB (71.3%)
ID-1: /dev/sda vendor: Kingston model: RBU-SNS8100S3128GD1
size: 119.24 GiB
ID-2: /dev/sdb vendor: Kingston model: RBU-SNS8100S3128GD1
size: 119.24 GiB
ID-3: /dev/sdc vendor: Samsung model: SSD 860 QVO 4TB size: 3.64 TiB
Partition:
ID-1: / size: 3.53 TiB used: 2.68 TiB (75.9%) fs: ext4 dev: /dev/sdc4
ID-2: /boot/efi size: 512 MiB used: 87.6 MiB (17.1%) fs: vfat
dev: /dev/sdc3
Swap:
ID-1: swap-1 type: partition size: 9.91 GiB used: 0 KiB (0.0%)
dev: /dev/md126p4
Sensors:
System Temperatures: cpu: 60.0 C mobo: N/A gpu: nvidia temp: 59 C
Fan Speeds (RPM): N/A
Info:
Processes: 427 Uptime: 12h 37m Memory: 31.3 GiB used: 13.32 GiB (42.5%)
Shell: Bash inxi: 3.3.26

How can we reproduce this?

• Debian 11 +

• ii virtualbox-7.2 7.2.6-172322-Debian-bullseye amd64 Oracle VirtualBox

• start guest OS (Debian 13 but it don't seem to matter)

• capture mouse pointer

Did you upload all of your necessary log files, screenshots, etc.?

• Yes, I've uploaded all pertinent files to this issue.