Re: powerbook wakeup/boot display issue

[Joseph Sanger <joseph.sanger@virgin.net>]

Hi there,


Thanks Johannes and Michel for your replies. I haven't tried switching 
VTs yet, I'll try when the problem recurrs.

FYI. it was this forum that got me worried, its about half way down the 
page:

http://forums.gentoo.org/viewtopic-t-473838.html

What do you think?

BTW I forgot to mention, it sometimes happens on boot as well (maybe 1 
in 10?). Once it happened just before the penguin appears at the top of 
the screen, but usually just before the debian login window.

Thanks again,

Joe

Johannes Berg wrote:
> Hi,
>
> > The powerbook sleeps fine I think, but probably about 50% of the time, 
> > on wake-up, the display freezes with a black screen and then slowly 
> > begins to "bleach" white and purple from the top. Obviously I shut down 
> > immediately as this looks dangerous.
>
> I've been told that this is completely harmless as it's just what
> happens when the LCD is off but the backlight still turned on for some
> reason, which causes the screen to go completely white after all the
> crystals clear out.
>
> I don't really have a fix for it. What happens if you switch VTs a few
> times when it happens?
>
> johannes