That was my initial thought too David but no, not the screen blanking/turning off to save energy. There is no way to get the screen to display again as usually would be with energy saver.
Regards Shayne On Wed, Nov 30, 2011 at 3:57 PM, David Noel <[email protected]> wrote: > -- I hesitate to mention this, but it isn't just the Energy Saver settings? > > David Noel // 2011 Nov 30 > > ======== > > On 30 November 2011 12:45, S Beach <[email protected]> wrote: > > Thanks Carlo > > > > I'll get him to give the Apple store a call. > > > > Good point re firmware. I'll check that too. > > > > Regards > > > > Shayne Beach > > > > > > On Wed, Nov 30, 2011 at 12:36 PM, cm <[email protected]> wrote: > > > >> Hi Shayne, > >> > >> As far as the original receipt is concerned I believe your friend will > be > >> OK. I have actually had a piece of hardware replaced at the Apple Store > and > >> they didn't even ask to see the receipt. Using the serial number, their > >> computer records showed that the item was registered to me. I don't > know if > >> this is standard policy or a one-off polite Apple rep., but your friend > >> could give the store a call and check. > >> > >> As for the black screen, I seem to remember that there was some > discontent > >> surrounding the iMac display some years back. I don't recall the > details of > >> the problem but I believe Apple issued a firmware fix. Does your friend > >> have the latest firmware? > >> > >> Cheers, > >> Carlo > >> > >> On 30/11/2011, at 12:12 , S Beach wrote: > >> > >> > Hi All > >> > > >> > A fiend of mine has a problem with a 27" iMac (bought early 2009). > >> > Occasionally the screen goes black but everything seems to keep going > in > >> > the background (music keeps playing etc). > >> > If he turns it off (using the power button) it restarts OK then the > >> screen > >> > goes black again. If he turns off and leaves it for a while it starts > OK > >> & > >> > doesn't go black for a while. > >> > I suspect it is a heat problem with either the screen itself or the > >> > qraphics card. I have seen some discussion on various websites > (including > >> > the apple support forums) of heat problems with these iMacs but the > >> > symptoms don't seem quite the same. > >> > I noticed what I assume is a slotted vent hole on the back of the iMac > >> > (lower centre) with a bit of dust around it but as it is obscured by > the > >> > stand I couldn't get a proper look at it. > >> > > >> > Does anyone have any experience or knowledge of: > >> > > >> > 1. iMacs showing similar symptoms and the likely cause - is this a > >> known > >> > issue > >> > 2. How to check for, and clean out dust > >> > I often have to clean dust out of various computers (including my > Mac > >> > Pro) by blowing or vacuuming but it is best to determine where the > >> dust is > >> > built up so you draw the dust out of the build up rather than > forcing > >> it > >> > further in. And of course these iMacs are not easy to get into. > >> > > >> > It is still under apple care (just) and he is hoping to make use of > that > >> > but is not yet sure if he can find the original receipt. > >> > > >> > Regards > >> > > >> > Shayne > >> > -- The WA Macintosh User Group Mailing List -- > >> > Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > >> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > >> > Settings & Unsubscribe - < > >> http://lists.wamug.org.au/listinfo/wamug.org.au-wamug> > >> > >> -- The WA Macintosh User Group Mailing List -- > >> Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > >> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > >> Settings & Unsubscribe - < > >> http://lists.wamug.org.au/listinfo/wamug.org.au-wamug> > >> > > -- The WA Macintosh User Group Mailing List -- > > Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > > Settings & Unsubscribe - < > http://lists.wamug.org.au/listinfo/wamug.org.au-wamug> > > > -- The WA Macintosh User Group Mailing List -- > Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > Settings & Unsubscribe - < > http://lists.wamug.org.au/listinfo/wamug.org.au-wamug> > -- The WA Macintosh User Group Mailing List -- Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> Settings & Unsubscribe - <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
