27Xi stays on displaying "no source signal" after I turn off my PC or PS4, doesn't enter sleep mode.

I started having this issue a few weeks ago. The monitor no longer enters sleep mode for whatever reason after I turn off my devices connected to it (currently my PC via DVI and my PS4 via HDMI), it turns on and displays a box with "no source signal" and never goes to sleep. Before it displayed a box with "monitor going to sleep" for a few seconds and the panel turned off as the montor entered sleep mode. This is extremely annoying. How do I fix it? What's wrong with it? I already tried a factory reset.

Hello, try this...
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive & clear caches.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.
If 10.7.0 or later...
Bootup holding CMD+r, or the Option/alt key to boot from the Restore partition & use Disk Utility from there to Repair the Disk, then Repair Permissions.

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There is no output from that command line? Maybe the pid changed.
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hi..
I have a problem with my laptop..
when the display turns off after 10 minutes , it doesn't turn on again !!
i move the mouse, trying to type on the keyboard, but it doesn't work..
to turn the display on again i should close the lid to hibernate and open it again!!
i hope that you will help me @_@ !

Hello
Check please http://support.microsoft.com/kb/917332/en-us
To correct the behavior please download and apply the patch (KB917332) which could be found in the detailed resolution below. I hope it will help.

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hi
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STEAMER123 wrote:
Found the problem(S)
Like people on the other website, the issue is the copper piece on the batteryis not contacting with the phone. That's why the battery icon shows only when its plugged in and nothing at all when its not plugged in. All the complaints I read on the internet has just one problem. It just happens I got two on this phone.........
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2) after I bent the copper piece, the battery is still not contacting right, (you can't really tell by looking at it, I was just trying everything people were saying on the web. I spent hours on it and I got it !!!) I had to cut a business card to slide it underneath the battery. (2 business card thick). If u have same problem, u should try one card thick first.
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Hey, this really helps, after looking for arkane solutions, I just add a piece of bend paper under the batery and it works... notice something,, the batery used to hace a plastic strip por pulling out.. this plastic strip got unglued so i removed, i see this plastic strip thinkness is needed for the wire copper piece to make contact... terrible design.
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27Xi stays on displaying "no source signal" after I turn off my PC or PS4, doesn't enter sleep mode.

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