Re: 27 iMac Screen going black but not sleeping
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 lis...@aoi.com.au 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 sbscr...@gmail.com 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 cm200...@gmail.com 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
Re: 27 iMac Screen going black but not sleeping
Hehe, When I had this panic, it was because I had forgot I had set one corner to black the screen out ;o) However, I am sure you have already checked this? Cheers Neil -- Neil R. Houghton Albany, Western Australia Tel: +61 8 9841 6063 Email: n...@possumology.com on 30/11/11 12:12 PM, S Beach at sbscr...@gmail.com 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
27 iMac Screen going black but not sleeping
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
Re: 27 iMac Screen going black but not sleeping
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
Re: 27 iMac Screen going black but not sleeping
-- 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 sbscr...@gmail.com 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 cm200...@gmail.com 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
