Mouse drags/selects instead of just clicking (like if I had not released the button), only for VirtualBox...

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Whenever I click anywhere in Virtualbox's main window (the window that lists your VMs), it starts dragging or selecting, like if I had not released the mouse button:

enter image description here

In the screenshot above, I performed a left-click (press then release) on the first VM, so it should just be selected. But instead, it is like I was trying to drag the VM somewhere.

Investigation:

Fearing a hardware problem, I tried using an external USB mouse, but it does not change anything.

In Settings>Pointing & Clicking, both Mouse Keys and Click Assist are OFF.

VirtualBox is the only program where that happens. Right now I am using Firefox and GIMP to take the above screenshot, clicks work perfectly. Clementine (which I believe is another Qt app) also works fine.

If I start a Windows VM, the problem also occurs inside that Windows environment.

I am using Ubuntu 18.04.1 LTS with everything left by default, in particular I have not changed the shell/desktop environment.

How to investigate and fix that?

edited 2 days ago

asked 2 days ago

Nicolas Raoul

4,7401861111

add a comment |

up vote
0
down vote

favorite

Whenever I click anywhere in Virtualbox's main window (the window that lists your VMs), it starts dragging or selecting, like if I had not released the mouse button:

enter image description here

In the screenshot above, I performed a left-click (press then release) on the first VM, so it should just be selected. But instead, it is like I was trying to drag the VM somewhere.

Investigation:

Fearing a hardware problem, I tried using an external USB mouse, but it does not change anything.

In Settings>Pointing & Clicking, both Mouse Keys and Click Assist are OFF.

VirtualBox is the only program where that happens. Right now I am using Firefox and GIMP to take the above screenshot, clicks work perfectly. Clementine (which I believe is another Qt app) also works fine.

If I start a Windows VM, the problem also occurs inside that Windows environment.

I am using Ubuntu 18.04.1 LTS with everything left by default, in particular I have not changed the shell/desktop environment.

How to investigate and fix that?

edited 2 days ago

asked 2 days ago

Nicolas Raoul

4,7401861111

add a comment |

up vote
0
down vote

favorite

Whenever I click anywhere in Virtualbox's main window (the window that lists your VMs), it starts dragging or selecting, like if I had not released the mouse button:

enter image description here

In the screenshot above, I performed a left-click (press then release) on the first VM, so it should just be selected. But instead, it is like I was trying to drag the VM somewhere.

Investigation:

Fearing a hardware problem, I tried using an external USB mouse, but it does not change anything.

In Settings>Pointing & Clicking, both Mouse Keys and Click Assist are OFF.

VirtualBox is the only program where that happens. Right now I am using Firefox and GIMP to take the above screenshot, clicks work perfectly. Clementine (which I believe is another Qt app) also works fine.

If I start a Windows VM, the problem also occurs inside that Windows environment.

I am using Ubuntu 18.04.1 LTS with everything left by default, in particular I have not changed the shell/desktop environment.

How to investigate and fix that?

edited 2 days ago

asked 2 days ago

Nicolas Raoul

4,7401861111

Whenever I click anywhere in Virtualbox's main window (the window that lists your VMs), it starts dragging or selecting, like if I had not released the mouse button:

enter image description here

In the screenshot above, I performed a left-click (press then release) on the first VM, so it should just be selected. But instead, it is like I was trying to drag the VM somewhere.

Investigation:

Fearing a hardware problem, I tried using an external USB mouse, but it does not change anything.

In Settings>Pointing & Clicking, both Mouse Keys and Click Assist are OFF.

VirtualBox is the only program where that happens. Right now I am using Firefox and GIMP to take the above screenshot, clicks work perfectly. Clementine (which I believe is another Qt app) also works fine.

If I start a Windows VM, the problem also occurs inside that Windows environment.

I am using Ubuntu 18.04.1 LTS with everything left by default, in particular I have not changed the shell/desktop environment.

How to investigate and fix that?

18.04 virtualbox mouse

edited 2 days ago

asked 2 days ago

Nicolas Raoul

4,7401861111

edited 2 days ago

asked 2 days ago

Nicolas Raoul

4,7401861111

edited 2 days ago

asked 2 days ago

Nicolas Raoul

4,7401861111

asked 2 days ago

Nicolas Raoul

4,7401861111

asked 2 days ago

Nicolas Raoul

4,7401861111

add a comment |

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