black-grey screen and how to add kernel nomodeset in F20?

[Ranjan Maitra]

On Sun, 16 Mar 2014 09:37:06 +0800 Ed Greshko <ed.greshko at greshko.com>
wrote:

> On 03/16/14 09:05, Ranjan Maitra wrote:
> > I have had this issue for a while (both in F19 and F20 -- really my
> > only issue) on a Dell XPS 14. So, basically, after a while, and at
> > unclear intervals, of lying in idle mode (and unrelated to any task I
> > have been running from what I can tell), the screen goes black. Not
> > the black that is when it it hibernated or shutdown, but a greyish
> > black. The machine is unresponsive, however some key-presses set up by
> > me do send it instructions to hibernate (and it does so). It does come
> > back as if nothing happened, but for the hibernate. 
> >
> > I wonder if this is caused by kernel modesetting (which has always been
> > a sore point with almost everything I have had) so I was wondering if
> > the nomodeset should be enabled? If so, how does one go about this on
> > F20? (And of course, are there other explanations for this behavior?)
> > There does not seem to be anything on the log files for me to clue in
> > on.
> >
> > Many thanks for reading! And thanks also for any helpful suggestions!!
> 
> Shot in the dark, no pun intended, but your system does seem to recognize keyboard input.  The grayish screen would happen when the screen is "blanked" but the back-light is not turned off.  Almost seems like some sort of screensaver problem/issue.  Have you tried typing your password and enter?  (As I type this I wonder if once can hibernate from a screen saver.....).

I will try this out, but I have no screensavers installed on this XPS
14. (Btw, even Alt-F1-F2-F7, etc has no effect.)

Ranjan

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