Change the default screensaver from black to ubuntu logo

Matt Zimmerman mdz at
Tue Aug 5 10:19:29 BST 2008

On Mon, Aug 04, 2008 at 07:24:32PM +0000, Ted Gould wrote:
> On Fri, 2008-08-01 at 17:05 +0200, Martin Pitt wrote:
> > Personally I wouldn't mind a more attractive screensaver by default.
> > However, I'd insist on keeping the black one if you are on a laptop
> > which is currently running on battery. No need to waste precious power
> > there for bling.
> The reality is that the blank screensaver will save very little power
> over the floating Ubuntu logos.  The blank screensaver leaves the
> backlight on, which is the majority of the power.  DPMS is still
> configured with laptop setups through GPM, and that'll save the power.
> I don't think the 2D GPU usage would make much of a difference in power
> usage.

I don't know about the GPU, but the CPU usage, while low, would presumably
prevent the CPU from going to sleep when it otherwise might, and the power
usage there should be significant.

I agree with Martin that we should default to, simple idle blanking when
running on battery power.

 - mdz

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