The Curse of the Mad Power-Saver

[Patrick O'Callaghan]

On Thu, 2011-12-15 at 20:20 -0700, T.C. Hollingsworth wrote:
> On Thu, Dec 15, 2011 at 7:59 PM, Patrick O'Callaghan
> <pocallaghan at gmail.com> wrote:
> > This is F16 fully updated, under KDE (ditto). For no readily apparent
> > reason my monitor goes black, and shortly thereafter enters power-saving
> > mode. Looks like a screensaver, right? However:
> >
> > It only happens under KDE.
> >
> > It doesn't happen in every session, just sometimes.
> >
> > When it happens, the timeout before blanking the monitor is on the order
> > of 2 to 3 seconds, making it impossible to use the system without
> > constantly jiggling the mouse.
> >
> > KDE Settings (unchanged since F15 and earlier, when this problem did not
> > exist) have the screensaver OFF. Also the Power-save profile is set to
> > Performance with timers unset.
> >
> > The machine is an always on desktop (Intel Mobo, Intel graphics). The
> > monitor is a Flatron W2243S.
> >
> > Some insight would be appreciated.
> 
> Are you running 4.7.4?  Did you have this problem before you updated?
> 
> I'm also experiencing this with 4.7.90.  If it crept in with 4.7.4
> also, it should be easier to track down, as not a whole lot should
> have been backported into that.

Currently on 4.7.3-13.fc16.x86_64 (I don't use updates-testing for the
moment). This is an update from the DVD package. The problem also
happened with the version installed from the DVD.

poc