VirtualBox

Ticket #5605 (closed defect: worksforme)

Opened 4 years ago

Last modified 4 years ago

ThinkPad Core 2 Duo - VT-x not recognized

Reported by: enalposi Owned by:
Priority: major Component: guest smp
Version: VirtualBox 3.1.0 Keywords:
Cc: Guest type: other
Host type: other

Description

Hello, I have been sent here my the Mod as a follow up to the thread ( http://forums.virtualbox.org/viewtopic.php?f=6&t=25243&start=0)

In summary VB doesn't recognize VT-x on my ThinkPad T61p with T7500 processor (supports VT-x:  http://ark.intel.com/VTList.aspx) In the end I did a very simple test. I created a new XP client VM.

  1. Setting 2 client processors: Error - No VT-x
  2. Switch down to 1 client processor. Starts fine.

I am attaching relevant log and settings files.

Thanks.

Attachments

XPdev.zip Download (20.7 KB) - added by enalposi 4 years ago.
Log and Settings

Change History

Changed 4 years ago by enalposi

Log and Settings

comment:1 Changed 4 years ago by enalposi

Looks like I cannot edit the form. Host OS: Windows 7. VT has been enabled in BIOS. I think system config details are all in log and settings files. Thanks.

comment:2 Changed 4 years ago by enalposi

OK, vbox4me2 pointed me at a FAQ and this tip appears to have the issue resolved:

Another hint: after enabling VT-X/AMD-V in the BIOS you might need to switch the PC off completely, unplug it, or remove laptop battery for a minute. Ea: Reboot the Host and go into the BIOS disable vt-x, save BIOS settings, pause machine after bios boot messages power down the Host (unplug power cord!) start the Host and go into the BIOS enable vt-x, save BIOS settings, pause machine after bios boot messages power down the Host (unplug power cord!) Boot the Host.

comment:3 Changed 4 years ago by Technologov

This is a BIOS bug on your host, not a VirtualBox bug. Please use Forum for such problems.

VBox team: Please close it as invalid.

-Technologov

comment:4 Changed 4 years ago by sandervl73

  • Status changed from new to closed
  • Resolution set to worksforme

Try to find an update for your BIOS. We can't fix BIOS bugs.

comment:5 Changed 4 years ago by enalposi

Thank you for explaining that it is a bios bug after I spent tedious time figuring out that it is a bios issue with help from vbox4me2... ;-)

Maybe could add this to a trouble shooting section in the docs as it doesn't seem to be an isolated thing.

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