Bug#921835: xfce4-screensaver: wastes CPU while the display is off
On Thu, Feb 21, 2019 at 01:45:31PM +0100, Yves-Alexis Perez wrote:
> On Sat, 2019-02-09 at 11:53 +0100, Adam Borowski wrote:
> > Package: xfce4-screensaver
> > Version: 0.1.3-2
> >
> > I left home for the weekend, just ssh-ed in and I see:
> > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> > 2375 root 20 0 823412 223376 169752 R 96.3 2.7 1946:54 Xorg
> > 24967 kilobyte 20 0 31540 5736 4496 R 34.9 0.1 1:26.92 zoom
> > 24966 kilobyte 20 0 31144 5188 4320 S 28.2 0.1 1:11.75 zoom
> >
> > The screen has been locked for nearly a day, thus it's obviously off (which
> > I can't verify).
> I think you should be able to disable the screensavers or to just select
> “blank screen” instead of letting xfce4-screensaver select a random one.
That'd workaround the issue, yeah.
> > Once the monitor gets suspended/slept/powered off, there's completely no
> > point in drawing anything. On the other hand, a computer with two cores
> > worth of activity for a prolonged time wastes a significant amount of
> > electricity, which is bad both for the environment and for users' wallets.
> >
> > Thus: could you please stop spawning new "draw something" processes once
> > the saver has gone past the first (visual) stage?
>
> Agreed, but this is likely a bug in mate-screensaver (or whatever the code
> originally comes from). Jonathan, could you take a look?
>
> Honestly I'd be just fine in just disabling all the screensavers and only keep
> blank screen.
Do you mean dropping them all by default, or just after the powersave kicks
in? The latter would keep the eyecandy when there's a human around.
Not that the eyecandy distraction feature is so vital... Just blanking the
screen is probably as good. I need *-screensaver as a sane locker (ie,
anything _but_ light-locker), not for its visual appeal.
Meow!
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