#12260 closed defect (worksforme)

VT-x not detected since VB 4.3

Reported by:	lilian.moraru	Owned by:
Component:	other	Version:	VirtualBox 4.3.0
Keywords:	VT-x VirtualBox 4.3	Cc:
Guest type:	Linux	Host type:	Windows

Description

I installed VirtualBox 4.3 and it doesn't detect VT-x any more.

It trows the "This kernel requires an x86-64 CPU..." error.

It works all good on previous versions. I even removed VirtualBox 4.3 and installed VirtualBox 4.2.18 without restarting once and it worked in 4.2.18.

I attach a screenshot of the error and DxDiag.

Attachments (2)

VirtualBox4.3bug.png (48.3 KB ) - added by lilian.moraru 11 years ago.: The screenshot
DxDiag.txt (42.0 KB ) - added by lilian.moraru 11 years ago.: DxDiag file

Download all attachments as: .zip

Change History (6)

by lilian.moraru, 11 years ago

Attachment:	VirtualBox4.3bug.png added

The screenshot

by lilian.moraru, 11 years ago

Attachment:	DxDiag.txt added

DxDiag file

comment:1 by Ramshankar Venkataraman, 11 years ago

Change the guest OS type to "64-bit" or use the command:

VBoxManage modifyvm <vmname> --longmode on

comment:2 by Frank Mehnert, 11 years ago

Resolution:	→ worksforme
Status:	new → closed

comment:3 by lilian.moraru, 11 years ago

The problem is still present in VB 4.3.2.

comment:4 by Frank Mehnert, 11 years ago

In that case I want to see a VBox.log file of such a VM session.

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