[Novalug] screensaver takes over, or hibernate ?

James Ewing Cottrell 3rd JECottrell3 at Comcast.NET
Tue Jun 15 22:26:31 EDT 2010


Hmmm, one wonders how virtual machines map things like screen saving and 
power saving. I know that Xen has suspension of a VM, and you would 
think that the hypervisor scheduler would give less time to a VM 
spending time in the idle loop.

Other hypervisors (KVM, VMWare, etc) should have similar characteristics.

In other words, there is no advantage trying to Save a Virtual Screen or 
Conserve Virtual Power.

Why not just turn off screen saving and power management?

JIM

On 6/15/2010 12:48 PM, Walt Smith wrote:
>
>
>
>    
>> On Mon, Jun 14, 2010 at 09:50:32AM -0700, Walt Smith wrote:
>>      
>>> list,
>>>
>>> A few weeks ago, I posted about a manual update of
>>> the kernel went OK, but the desktop update did not.
>>> I backtracked the desktop.
>>> rpm -e newversion :  rpm -i "oldversion"
>>>
>>>
>>> Anyway, for the second day in a row, at noon ( apparently )
>>> my PC was in screensaver mode ( blank), and would not
>>> "come back".  During the evening yesterday, as the screensaver came on,
>>> it worked OK: pressing some key brought the desktop back.
>>>
>>> I assume screensaver mode.  BUT  I just now
>>> changed the screen saver from blank to floating bubbles so
>>> I can tell tomorrow if that is the problem tomorrow.
>>>
>>> Today and yesterday, it was necessary to go to virt term ctrl-F1
>>> and kill Xorg.  Then the Xwindows system auto-restarted and I got my
>>> normal desktop login.  Worked OK, the rest of the evening, and
>>> this morning after a 10 hour wait.  Then at noon, crap !!!
>>>
>>> I went to :
>>> System  ->    Prefernces  ->  Screensaver,
>>> and everything "Seems" OK.   I changed the blank screensaver
>>> to bubbles.
>>>
>>> same menu gui
>>> ON AC power  ->   "put computer to sleep"
>>> is set to "never".
>>>
>>> where else to fix ??  Will find if tomorrow at noon, there
>>> is some "time" related issue.
>>>        
>> I remember seeing on some of those menus "power down the disk
>> drives?"
>>
>> -- 
>> Jon H. LaBadie                  novalugml at jgcomp.com
>> JG Computing
>> 12027 Creekbend Drive        (703) 787-0884
>> Reston, VA  20194        (703) 787-0922 (fax)
>>
>>      
> hi,
>
> had to restart Xorg after:
> 1.  noon came and went
> 2.  display ( or computer ?) went to some hibernate or
> suspend a few minutes later after non-use.
>
> Looks like the screensaver for floating bubbles isn't
> working, or I can't see it if the monitor is power saving.
> The monitor light stays green, but the monitor takes time to
> warm up after pressing a keyboard key.
>
> I went to the "powermanagement" gui, and changed the setting:
> "put the display to sleep" -->   never.
>
> It had been set to 5 minutes.  But I'd never had this problem
> before.  Guess I'll know again tomorrow !!
>
> reminder: F12, gnome mostly.
>
> Walt.......
>
>
>
>
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