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AMD-V checkbox checked, but shows Disabled under Details tab
Posted: 5. Aug 2008, 16:12
by jsalvo
Code: Select all
[jsalvo@localhost jsalvo]# rpm -qa | grep Virtual
VirtualBox-1.6.4_33808_fedora9-1.x86_64
[jsalvo@localhost jsalvo]# uname -r
2.6.25.11-97.fc9.x86_64
Under Settings ( Ctrl+S ) on a machine, under General -> Advanced tab, I have the checkbox for "Enable VT-x/AMD-V" checked, since I have an AMD Turion62 X2 host CPU on my laptop.
However, the "Details" tab for the same machine shows that "VT-x/AMD-V" is Disabled.
Which one is VirtualBox really using ??
Re: AMD-V checkbox checked, but shows Disabled under Details
Posted: 5. Aug 2008, 16:16
by jsalvo
jsalvo wrote:Code: Select all
[jsalvo@localhost jsalvo]# rpm -qa | grep Virtual
VirtualBox-1.6.4_33808_fedora9-1.x86_64
[jsalvo@localhost jsalvo]# uname -r
2.6.25.11-97.fc9.x86_64
Under Settings ( Ctrl+S ) on a machine, under General -> Advanced tab, I have the checkbox for "Enable VT-x/AMD-V" checked, since I have an AMD Turion62 X2 host CPU on my laptop.
However, the "Details" tab for the same machine shows that "VT-x/AMD-V" is Disabled.
Which one is VirtualBox really using ??
Well it looks like it is using the info from the "Details" tab, in that AMD-V is disabled based on the Runtime Attributes:
Code: Select all
Runtime Attributes
Screen Resolution
800x600x32
VT-x/AMD-V
Disabled
Guest Additions
Not Detected
Guest OS Type
openSUSE
How do I get it enabled ?
Re: AMD-V checkbox checked, but shows Disabled under Details
Posted: 5. Aug 2008, 16:19
by jsalvo
jsalvo wrote:jsalvo wrote:Code: Select all
[jsalvo@localhost jsalvo]# rpm -qa | grep Virtual
VirtualBox-1.6.4_33808_fedora9-1.x86_64
[jsalvo@localhost jsalvo]# uname -r
2.6.25.11-97.fc9.x86_64
Under Settings ( Ctrl+S ) on a machine, under General -> Advanced tab, I have the checkbox for "Enable VT-x/AMD-V" checked, since I have an AMD Turion62 X2 host CPU on my laptop.
However, the "Details" tab for the same machine shows that "VT-x/AMD-V" is Disabled.
Which one is VirtualBox really using ??
Well it looks like it is using the info from the "Details" tab, in that AMD-V is disabled based on the Runtime Attributes:
Code: Select all
Runtime Attributes
Screen Resolution
800x600x32
VT-x/AMD-V
Disabled
Guest Additions
Not Detected
Guest OS Type
openSUSE
How do I get it enabled ?
Never mind ... it was actually greyed out ( but checked ), and the grey and black colour was too close to each other for me to notice. Now it is enabled.
Posted: 5. Aug 2008, 16:23
by jsalvo
Hmmm ... having AMD-V enabled actually make the guest OS run slower ( e.g. the graphics / screen of the guest OS ... you can see it draw line by line ).
Is that expected ? I would have thought it would have been faster with AMD-V ?
Posted: 5. Aug 2008, 19:03
by Muts
