Imac retina 5k; hot corner display sleep only works on attached display

Just taken delivery of iMac retina 5k. I have two Thunderbolt displays attached left and right. I always use the bottom left hot corner to put the display to sleep but on this new setup I have to swipe to the bottom left of the left display to get this to work. With my previous Macbook Pro it used to work if I swiped to the bottom left of the Pro, ie I didn't have to go to the left hand Cinema Display. Anyone had this problem?

Thanks but och I ken that. Thought some bright spark would save me the long Christmas wait. Actually I'm getting a callback soon re another issue so I'll try them on this too.

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Mountain Lion sleeps when using hot corner to sleep displays

Mountain Lion's Power Nap "feature" already ***** at sleeping the computer even if tasks are running (downloading files via Firefox or Chrome, encoding a video in HandBrake, etc...), but it also seems to make the computer sleep when using a hot corner to make the displays turn off. Previously in Snow Leopard, using a hot corner to sleep the displays wouldn't sleep the computer, since the hot corner was used for "Put Displays to Sleep", not "Put Computer to Sleep". But in Mountain Lion, using the hot corner also puts the computer to sleep, immediately, not at the timed setting in the Energy Saver preference pane.
Why is this?
Shouldn't putting the displays to sleep only put the displays to sleep? Why did Apple break this and not fix it in 10.8.1 or 10.8.2?

SuperDuper does do that, but the flaw has been posted regarding remote disks going to sleep and some even ejecting. That is truly where the problem arises. If I check don't put drives to sleep that is a lot of strain on the system.

Sleep only working via Apple Menu?

Hi,
since today I have a very strange problem with my iMac: Sleep is only working through the apple menu. If I set up energy saver or press cmdshifteject, the computer won't sleep, only the display sleep will work (so the display switches off after the amount of time I set in energy saver, or if I press the keyboard shortcut the display turns off but the mac stays on)
Any ideas on this? It happens on all accounts, I already tried SMC and PRAM resets and disabled wake on lan and all sharings. I also trashed the PowerManagement.plist
It maybe helpful, that "pmset sleepnow" from terminal works fine. It seems that energy saver and the keyboard shortcut use another way to send the imac to sleep, which stopped working.
ideas?

Delete the following .plist files and restart:
-/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist-/Users/username/Library/Preferences/com.apple.systemuiserver.plist--
(username is your name or System Administrators name)
-/Library/Preferences/SystemConfiguration/com.apple.AutoWake.plist
A restart is very important after deleting these plists. After a reboot your Mac will then generate new ones.
More on sleep, some of which you tried.......
This is for a Mac that won't sleep.
Here is Apple doc.#303698 with their tips.
Mine follow;
USB devices and hubs often cause Macs to not sleep or wake quickly from sleep (notably HP printers and scanners, HP all in ones, and Cannon scanners). Disconnect all USB except for keyboard and mouse and try. If it sleeps, add one back at a time testing after each one to find the culprit.
If you've set your Mac to receive faxes, it may not be able to sleep. It might also have a damaged preferences file.
If you use your Mac for faxing, open System Preferences. click Print & Fax, click the Faxing tab, and uncheck the Receive Faxes On This Computer box.
If that doesn't work or you've never faxed on your Mac, go to Finder/Hard Drive /Library/Preferences/SystemConfiguration and delete the com.apple.PowerManagement.plist and com..apple.AutoWake.plist files (if your Mac asks, type your admin. password).
If the latter file isn't present in the folder, go to user name(probably your name)/Library/Preferences, delete the com.apple.systemuiserver.plist file, and reboot your Mac.
Some, in these forums, have had luck fixing sleep issues downloading the Combo update from this site (yours may be corrupt), not Software Update (10.6.4 Combo, etc.), disconnect all firewire + USB devices except keyboard + mouse,Repair Permissions, re-install update, Repair Permissions again + try.
You can install it right over what you have now.
Many here have reported no wake from sleep or failure to sleep, running 10.6.3 on MacBooks, using Parallels and VMware. No solution yet.
USER TIPS...
In System Preferences > Energy Saver is "Wake for network access" checked?
If so uncheck it and test.
Also, if you have an External Western Digital (WD) hard drive and have installed
WDDMService and WDSmartWareD on your Mac, it may not sleep. Fix is to un-install those....you don't need them to use the drive.
"I have had this problem with my IMac G5. It is surprisingly irritating. LaCie's Silverkeeper backup software was the cause. By default it gave itself permission to wake up the computer to check if a backup was needed. Do you have this or a similar program installed which has scheduled activities including wake-up permissions as an option?"
One provided this link, xlr8yourmac.com, to a member, which addresses failure of deep sleep with some users that updated and added new FireWire and USB cards.
Also, here is Apple doc.#305262 about PCI cards and sleep.
After few days of messing around I found out that I had desktop background (wallpaper) set to change every 1 minute.
After unchecking "Change picture..." in system preferences (under Desktop/Screen saver), my powerbook went to sleep all by itself.
One noticed this; "I have a Canon printer(shared) and my imac would not sleep. I opened up printer/fax in system prefs and noticed it said the printer was in use when it was off. Opened up the printer queue and noticed about 7 pending documents. Deleted them all and now it sleeps.
Check the printer queue!"
Good Luck!  DALE

160gb classic, only working when attached to mains power outlet

In last 24 hrs my classic has decided to only switch on when plugged into mains outlet. Screen flickers when attached to laptop, had to restart computer to get it to switch on and sync. I have tried restoring to factorysettings before synching tunes back to it. Anyone out there who to can resolve this before I have to pay for repairs?

Take it to somebody with more experience fixing iPods.

AirDrop between iPhone 5 iOS 8.1.2 and iMac Yosemite 10.10.1 only working if both have Everyone for AirDrop discovery

AirDrop between iPhone 5 iOS 8.1.2 and iMac 5k Retina Yosemite 10.10.1 is only working if both have Everyone selected in AirDrop discovery options. If the option is set to Contacts Only in one of them then neither device can see the other.
Is there a way to limit AirDrop to contacts only and allow both devices to see each other?
Both are setup with the same iCloud Drive account. I use the iMac to sync iTunes for this phone so the phone does trust this iMac.
Thanks,
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I am still having the same issue. I have tried Apple Support AGAIN. Still no resolution.
I cannot use my calendar on my Macbook Air OR my iPhone at all.
iCal just crashes!!! I have tried contacting Google, but they have not responded AT ALL.
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"Disable Screen Saver" hot corner no longer prevents Display Sleep

I am not sure whether it started only after I upgraded to 10.5.7, but I certainly have this very annoying issue right now.
I have "Disable Screen Saver" assigned to the top right "hot corner". Some time ago I could place my mouse pointer there in order to prevent activating of "Display Sleep" (as well as gradually dimming before jumping into bed).
It no longer works. I have my pointer in the right corner, and nevertheless the display first dims, then goes to sleep.
Is this only my problem? Any ideas how to fix it? Thanks!

Anybody?

IMac display doesn't stay asleep when hot corner activated

Hi,
I'm having the same problem mentioned in this archived thread from three years ago:
https://discussions.apple.com/thread/1323073?start=0&tstart=0
I have an Intel 27" iMac that I bought brand new last year. I have a hot corner set to sleep the display, but after it's activated it usually comes back on after a few seconds. It's really frustrating.
If it's just mouse jitters (I have the wireless Magic Mouse that came with the iMac), I don't understand why the hot corner area is so small. It seems like it's just a pixel large. Is there any way to make the hot corner area bigger so the mouse has to be moved a wider distance to come out of the hot corner?
Or if it's certain programs activating the display, how do I figure out which programs are doing it and is there any way to prevent all programs from doing that? If I'm choosing to sleep my display, I want it to stay that way and I don't want it to come on even if I have an iCal reminder.
- Bart

rfarwell5 wrote:
there is no activity besides the encoding that is waking up the monitor. I
How can you be sure? It may be some system operation that's doing it.
This may also prevent the display from sleeping, but the next time you're doing this you might launch Activity Monitor and order the process list by CPU. Then when the display wakes up, note what processes (besides the DVD encoding software) are using non-trivial amounts of CPU time.

OS 10.8 just installed. "Hot Corner" to put new iMac 2.7 GHz Intel Core i5 to sleep mode doesn't work. Have tried cordless and corded mouse with same result. Momentary sleep, immediate wake. Any idea how to fix?

Set "hot corner" to put iMac to sleep. Doesn't work. Selecting the corner will momentarily put to sleep, but immediately rewakes. Have tried all four corners with same result. Have tried with wireless mouse and with corded mouse with same result. Any ideas as to how to fix?

You've been so great, I want to thank you for all the help over a very frustrating day. Last evening, I redownloaded and installed the fresh copy of Mountain Lion. The problem remained. After installing the new OS 10.8, any clicks on a web page (Firefox browser) didn't open the page, but instead made a copy of the page on the desktop. Felt it must be hardware degrading, so I set up a case with Apple support for today. Early in the diagnostics, I had swapped out for a corded mouse and the problem remained. As a last try, I changed out my wireless mouse for a different wireless mouse. That seems to have done the trick. My Logitech mouse is incompatible with OS 10.8.
Thank you again, so much!
.../awards rkaufmann87 500 points!

Hot Corners: Display Won't Sleep

I have, for a long time, used hot corners to put my MBP display to sleep. I have things such as backups run while I sleep, so shutting down MBP or hybernation is not an option. Since the last OS update, envying the display sleep hot corner only works for less than a minute before the display wakes. I have had no problems with display sleep on my iMac. Does anyone have a suggestion to a fix? Thanks.
Alice

I'm running the latest OSX, and have the same problem.
The screen saver, or sleep, set in hot corners, only runs for 10secs at best.
Obviously something is disturbing the mouse. Could it be the uneven surface of the desk playing havoc with the laser? I'm not using a mouse pad, just using the desk surface.

Hot key or hot corner to put my monitors to sleep

Is there a way I can assign an entourage hot-corner or a hot key to put my monitors to sleep?
I'd love to be able to shut them down with a click, when I walk away.
Thanks in advance for any help!

Hi marglar,
I'm not sure if you can create a shortcut to put your display to sleep.
You can use this keyboard shortcut to put your mac to sleep: Option-Command-Eject.
Other shortcuts are here:
http://docs.info.apple.com/article.html?artnum=75459
Also, this might help:
http://www.apple.com/support/mac101/customize/4/#l4
Guylaine

IMac Retina 5K (2015) with 1xTDM iMac (2011) and 1x Dell External Display possible?

I have 1 x 27" iMac Retina 5K (2015), 1 x 27 " iMac (mid 2011) and a Dell P2715Q. I'd like to know if it's possible to run the 2011 iMac in Target Display Mode and my Dell as a secondary display from my 2015 iMac? My desired configuration is the 2015 iMac running two external displays. The 2015 iMac has an AMD Radeon R9 M295X 4GB Gfx card and both iMacs are running Yosemite 10.10.1
I have verified that running the 2011 iMac only via TDM works. Also running the Dell as an external Display only works (either at 4K resolution or the same resolution as the external iMac (2560x1440) via SwitchResX). With the Dell running @ 2560x1440, trying to put the 2011 iMac into TDM, causes a slow grey screen, then some display artefacts when coming out of TDM. Going in and out again appears to refresh the screen. But it doesn't seem to work.
I was wondering if anyone else has a similar configuration working and if so what settings or configuration changes to make?
Thanks!

I stopped by the Apple Store yesterday, and they were nice enough to try the Screen Sharing solution with me.
Indeed, we were able to share the screen of a MacBook Pro and display it on the iMac Retina 5K over a Thunderbolt Bridge network. (should also work over WiFi)
As I expected, (based on the native resolutions) the MBP window maxed out at about 55-60% of the height and width of the 5K display.
I didn't try experimenting with lower resolutions on the 5K.
I'd actually be OK with that solution except as we increased the font sizes, (e.g. 48 pt) we noticed a *lot* of ghosting around the characters.
I will have to try it again at normal font sizes and decide if that is something I can work with all day long.
Otherwise, I am leaning towards buying last year's iMac, which kinda' grates me the wrong way.
Thanks,
n8

T-Bolt Display not working with iMac Retina

When I replaced my Late 2012 iMac with the new iMac Retina, the Thunderbolt Display I use for a second monitor would not come on and is not visible in the iMac's "Displays" preferences. Has anyone had this problem? I tried rebooting the iMac, but no luck.
According to Apple, this iMac IS capable of outputting to two Thunderbolt displays. I have the upgraded video card in the iMac.

Ugh. I'm an idiot. I never imagined the Apple Thunderbolt/mini-DP cable would go bad between unplugging the old mac and plugging in the new one. I tried a different cable and the display came on. Problem solved!

Imac 27 runs hot as ****, won't sleep, and cpu runs wild in w7

I have been having audio issues with the imac 27. plugging headphones or speakers causes cpu to run crazy, the mic in the triband trrs jack does not work, and the imac runs hot, and will not go into power saver mode.
When I came in I found my nephew who was listening to some music on the imac, and I felt the back top of the imac and it was hot as ****. I almost burned my hand. I realized then that he had plugged his headphones in.
Unplugging the headphones or speakers can solve some of these problems.
But, this is not an acceptable fix.
Please contact Apple and urge them to fix these sound card issues.
If anyone does not have these problems in w7 with the imac 27 even after the latest bootcamp and imac updates, let us know right here. I think this affects every one of the late 2009 imacs and maybe some earlier ones too running windows 7.
Here's the post I recently ran on the headphone jack issue.
Not only does the cpu run crazy but the imac 27 gets very, very hot. Since I unplugged the headphones, it runs much, much cooler.
Certainly, some Mac engineers should take care of this problem, it seems it is universal on all the imac 27's and from what I gather, the smaller screened cousins too.
Also, we certainly want a stereo mix option for audio in or out, or what is called "what you hear" or wave out. Imac is supposed to be much geared to multimedia apps.
Finally, the mic jack part of the trrs set up MUST be fixed! A lot of manufacturers are going to headset combo jacks as they call them, mic in and stereo out on the same tribanded plug. But, the old single jack for mic in and single jack for stereo out are two tiny parts of the hardware and super inexpensive for the manufacturer. Why in the **** to go to the "advanced" triplug if the **** thing doesn't work.
Mac has a great reputation. I hope they remedy these problems right away.
Anyone whose imac 27 or 24 whose headset plug is working correctly. Let us know! I don't think anyone's is, but I think that few people understand that their cpu is running so much faster with the plug in, plus few even understand the combo jack and the triband, or trrs audio jack! Out of 4 audio technicians I talked to, not one of them knew what a trrs jack was or that you even have a mic in jack as part of the headset jack!
When I told one senior that it worked on the Mac side, he didn't believe for a while, thought my sound might be recorded from the onboard mic, but I proved it to him by tapping iaudibly on my iphone mic headset and and it showing up in garage band clearly and listening to big difference in audio.
As for a usb audio adapter, I am in a neon light environment and find that those adapters are more sensitive to electrical interference. Besides I want to use the headset jack as it was meant to be used!
Thats it.
Again, if anyone using an imac 27 and windows 7 64 or 32 doesnt have these problems, let us know! We are all anxious for a fix!
Best to all!

Yes, I have been dealing with this problem since early January. I just can't believe that apple would not have the necessary driver for the sound card in the Imac 27! That's like trying to run a race and not bothering to tie your shoes! How can they not have something as basic as the sound connections working???
I was encouraged to buy a top of the line imac 27 because Apple had told us that bootcamp would enable Windows users to use the machine just as if it were a native windows machine, then they don't give us the **** drivers to use the trrs mic jack. And you can't use the external speakers without the cpu going wild and heating up like a pot bellied stove.
This is really disheartening and now I am really thinking I made a big mistake. I wouldn't mind migrating to Mac gradually, but I have lot of scientific and other programs that require windows. At this rate there will be thousands of other mac buyers who will never make the same mistake again.
As you can see I am quite angry about this, and getting more angry with each day Apple ignores every imac purchaser who expected to use Windows on the machine! Is the software for a sound card driver that difficult?
Having a computer which doesn't have sound that works correctly, is like having a car without seat, you can still drive it but isn't very **** comfortable.

IMac Retina Display with CS6

I just got an iMac Retina display monitor and my Creative Suite 6 applications all have blurry/pixelated text. I have tried to install the patch updates but still not luck fixing this issue. Is this a mac issue or adobe creative suite 6 issue?

It's a combination of both and there is no fix. It doesn't even work 100% right in current versions of CC.
Mylenium

IMac Retina shuts off USB ports when sleeping

I have a new iMac Retina i7 with 32GB RAM running Yosemite. Approximately 60% percent of the time, when the iMac goes to sleep, it shuts off all of the USB ports. This includes dumping hard drives without properly ejecting them, as well as shutting off powered USB hubs. Switching the drives and hubs around to different ports does not help the problem, and it appears to be becoming more frequent. Any suggestions would be welcome.

I too am having hub issues with my 5K iMac. I purchased an Amazon Basics hub, that never worked at all. I returned it and got one made by vantec. I have two external hard drives connected to it, and they always are recognized after sleep or restart. But other things get dropped, like my two printers. I seem to be able to resolve the dropped hub ports by ejecting my external hard drives and then unplugging the power to the hub, then reconnecting the power. When i do, all the indicator lights come on again, and things work.
I am working with Vantec about this issue, they have been terrific by email, and they are offering to replace the hub. But now I am wondering if something more basic is wrong, like this SMC reset that has been mentioned in this thread. I was about to ask if that was hard to do, but I just looked at the link provided by Ralph, and doing it is easy-peasy. I will give this a try, and try to remember to report back.
thanks, Peter

Imac retina 5k; hot corner display sleep only works on attached display

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