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Windows Forum / Virtual PC / January 2008

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Selecting the virtual pc window stops the virtual OS

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WPC Dave - 28 Jan 2008 18:58 GMT
When I have a virtual pc running.  If I select the window that represents the
VPC (to drag it or whatever) Every virtual machine that I have running
"stops" or pauses until I deselect the window.

This really messes with the virtual OS's clock but temporarily stops all
programs running in the virtual machines.

I am running VPC 2007 with the QNX4 OS on a dual core XP pro box.

Thanks for any help...

David
Robert Comer - 28 Jan 2008 19:04 GMT
That's a setting on the Virtual PC 2007 console Performance tab.

Just open the VPC console, the File menu -> Options -> Performance

You probably want either of the top two options depending on how you
work.  Probably the 3rd option is what is set for it to pause the
other VM's.

Signature

Bob Comer <Microsoft MVP  Windows - Virtual Machine>

>When I have a virtual pc running.  If I select the window that represents the
>VPC (to drag it or whatever) Every virtual machine that I have running
[quoted text clipped - 8 lines]
>
>David
WPC Dave - 28 Jan 2008 19:53 GMT
Thanks for the quick responce, however, the second option was selected.
Both Virtual machines run just fine except when I select on of the windows
for example:

I start two virtual machines.
Both machines are running just fine.
If I select (and hold the mouse button down) on one of the virtual windows,
both virtual machines completely pause until I release the mouse button.  
They pause in such a way that the virtual computer and OS don't even know
that they were paused.  IE: If I hold the mouse button for 10 seconds (while
repositioning the window for example) the computer's clock is 10 seconds off
and any programs that were running resume as if nothing happened.

Is this only happening to my virtual machines because I am using an
"unapproved OS", without virtual machine additions installed, or does this
happen to others as well?

Thanks again...

David

> That's a setting on the Virtual PC 2007 console Performance tab.
>
[quoted text clipped - 16 lines]
> >
> >David
Robert Comer - 28 Jan 2008 20:47 GMT
My guess it that it's because you are holding the mouse button down.
It must be blocking VPC over all the VM's.  If you didn't hold the
button down, it wouldn't block.

I just did a test of that scenario and it definitely blocks VPC
itself.  No way around it other than to not hold the mouse button
down.

Signature

Bob Comer <Microsoft MVP  Windows - Virtual Machine>

>Thanks for the quick responce, however, the second option was selected.
>Both Virtual machines run just fine except when I select on of the windows
[quoted text clipped - 37 lines]
>> >
>> >David
Robert Comer - 28 Jan 2008 20:52 GMT
I just did a bit more testing to make sure, and yes, you're right, it
only happens on unsupported OS's in the VM (or supported OS's without
the additions installed.)

Signature

Bob Comer

>My guess it that it's because you are holding the mouse button down.
>It must be blocking VPC over all the VM's.  If you didn't hold the
[quoted text clipped - 24 lines]
>>
>>David
WPC Dave - 28 Jan 2008 21:15 GMT
Thank you for your quick and thorough responce.

Unfortunately it doesn't help, but at least it answers the question.

David

> I just did a bit more testing to make sure, and yes, you're right, it
> only happens on unsupported OS's in the VM (or supported OS's without
[quoted text clipped - 28 lines]
> >>
> >>David
Robert Comer - 28 Jan 2008 21:22 GMT
You're welcome, always glad to try and help.

Signature

Bob Comer

>Thank you for your quick and thorough responce.
>
[quoted text clipped - 34 lines]
>> >>
>> >>David
Colin Barnhorst - 28 Jan 2008 21:16 GMT
I wonder if the timer is causing it.  I wonder if using pit instead of tsc
might make a difference.

>I just did a bit more testing to make sure, and yes, you're right, it
> only happens on unsupported OS's in the VM (or supported OS's without
[quoted text clipped - 33 lines]
>>>
>>>David
Robert Comer - 28 Jan 2008 21:25 GMT
I don't know...

Signature

Bob Comer

On Mon, 28 Jan 2008 14:16:08 -0700, "Colin Barnhorst"
<c.barnhorst@comcast.net> wrote:

>I wonder if the timer is causing it.  I wonder if using pit instead of tsc
>might make a difference.
[quoted text clipped - 36 lines]
>>>>
>>>>David
 
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