Re: KVM and screen savers

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----- "François Cami" <fcami@xxxxxxxxxxxxxxxxx> wrote:

> On Thu, 11 Mar 2010 13:23:17 -0800
> Rick Stevens <ricks@xxxxxxxx> wrote:
> 
> > On 03/11/2010 12:47 PM, François Cami wrote:
> > > On Wed, 10 Mar 2010 11:44:15 -0500 (EST)
> > > William Henry<whenry@xxxxxxxxxx>  wrote:
> > >
> > >> On my F12 laptop I experience the following issue:
> > >>
> > >> If my cursor is in a KVM instance (RHEL 5) and I leave the
> machine for a while the Fedora screen saver with lock does not kick
> in.  That is until I press CTRL-ALT to take focus from the RHEL
> instance back to my Fedora 12. Then the screen saver kicks in.
> > >>
> > >> Apart form being a little annoying it is also probably a security
> issue. If I want the screen saver to kick-in after 5 or 10 min of idle
> time and require a password it is probably NOT a good idea for the KVM
> focus to somehow override this setting.
> > >
> > > Agreed.
> > >
> > > Could you please open a bug against Fedora 12 at
> bugzilla.redhat.com?
> > > The most likely component is virt-manager judging from your
> description.
> >
> > To be honest, I don't see a disconnect on that.  If the cursor's in
> a
> > KVM window, I'd expect the main screen to remain active as it's
> being
> > used to display the KVM window.  I'd think it'd rather annoying to
> have
> > the main screen (and consequently the KVM window) go into screen
> saver
> > mode while I was working on the VM.
> 
> Except that if the host's Xorg is used to display an application like
> OpenOffice.org or Firerox, I would still expect it to lock the screen
> if there is not keyboard activity. The key is not the displaying of
> anything but the inputdev activity.
> 
> Likewise, if I am working on the VM through the host, the host will
> see keyboard or mouse events and should not enable its screensaver.
> 
> I still feel it is a bug :)

+1.

Let me be clear.  This is after there has been no activity (keyboard or mouse) for either the host or the guest. (I'll use the host guest terminology)

So  e.g.  I've been working in a guest and the focus is there.  I leave my machine and go make a cup of tea and then get interrupted with a phone call.   I return to my machine and the screen saver with lock has not kicked in (if I had it enabled in the guest then the guest would have that but I'm not worried about that.) I decide to check email on my host and I CTRL-ALT out to the host. Then the screen saver and lock kicks in.  So as long as someone didn't ctrl-alt out they could see what's running on my desktop. (And it is also annoying to have the unexpected behavior of the screen saver kicking in at this time versus when I return from wherever.)

I think what should happen is that the host also recognizes the lack of activity and turns on the screen saver. Can it do that?

William  

> 
> François
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