Force External Dell Display Into Power Save Mode

How do I set up my MacBook Pro to send a video signal to my external Dell monitor to tell it to go into Power Save Mode when the MacBook Pro goes to "Sleep" (after the Preference set default of 14 minutes)?

I've tried a factory reset on the monitors. My monitors sleep settings are fine and they wake up from being asleep perfectly. As of this morning my little trick of unplugging them and swapping connections has stopped working. Now, when I swap cables the video card automatically assigns the primary video output to one of the monitors and keeps the other one asleep. very strange. So when I unplug the mini video adaptor from the dvi cord and then place that same cord in the native dvi output on the video card the card automatically reassigns the primary video output to that channel. So no matter how much witching I do I always end up with the system acting like I have a stretched desktop but with only the left display working while the right one is asleep. It's time to give apple support a call.

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New LG Monitor Screen Image Keeps Shifting a few pixels left and right / goes into power save mode

I just purchased a new LG Computer Monitor from Best Buy today and hooked it up to my PowerMac computer. Shortly after setting it up, the entire screen image started sporadically shifting left and right a few pixels. And then, at seemingly random times, it'll shut itself down, going into power save mode. I checked the cables to make sure they were secure and they seem to be. Could there be some sort of interference that's causing it? Or would it be the graphics card? My computer is only a couple years old. Please help!

Do you have another computer you can plug the monitor into to test?
Adam
Best Buy Community - Retail, Americas
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Macbook pro goes into power save mode with dell sp2208wfp monitor.

I have a macbook pro and am trying to connect it to a dell sp2208wfp monitor, I am using a hdmi cord and it goes straight to power save mode. My mac works on my roommates monitor and his PC works on my monitor but my mac doesn't work on my monitor. I've read the other forums and have found nothing. One guy suggested plugging the mac into a power source still nothing, any solutions before I try and sell this thing on craigslist?

Had the same issue a few months ago when I tried connecting to external monitor, it is only possible to run external displays from a Macbook Pro while the power cable is attached, if you try and connect to external display without having the charger attached the external display will flash your desk top for a second and then your Macbook Pro will go to sleep. Hence connect your charger every time you wish to connect to external display, its not a problem with your Macbook Pro, it's just the way of Apple. Hope that helps.

N78 - No time display in power saver mode?

I am really frustrated: i just bought the N78, and it's really good, but this little bit of detail is bugging me seriously!
Is it really not present? Or is it that i cant find it?
Solved!
Go to Solution.

It's not an issue that needs fixing, it is normal behaviour for the N78 and in line with it's predecessor the N73.
On some models the display blanks completely to save battery power. The N78 and N73 both act in this way that is why those two models have blinking lights to show that they are on. Most models are made using different chipsets and don't go totally blank and display the time instead.
Personally I prefer phones that go totally blank with a blinking LED than those that display the time.
On the N78 all it takes is a short press of the power button to light the screen to see the clock when the keys are locked or any key when they aren't.

PowerMac G5 hangs after going into screen saver power save mode

I have a PowerMac G5 and it's been working fine, but as of late has been hanging. I had a couple of external disks on the machine ( Maxtor OneTouch II and a OneTouch III). I recently added two more OneTouch III and stripped the three OneTouch III's together in a RAID set. I'm wondering if that is causing the hangs, but I've also seen it hang without the RAID so I'm not convinced it's the RAID.
Anyway, I can't figure out what's causing it to hang, but it seems to hang at some point after the screen saver runs and then the screen goes into power saver mode. It's not hung right when it shuts down the monitor, but at some point after that.
When it gets in this mode, I can't remotely login using ssh and I can't seem to wake it up. What I end up having to do is to hold the power button down for several seconds until the machine powers off.
In an attempt to see what's going on, I set the OS X monitor power save mode to "never", but I don't think I left it that way long enough and I never saw it hang.
Does anyone have any debugging tips that would help me identify the culprit?

I've been having the same troubles lately. Seem
since the JAVA update. It hangs completely after the
screen is shut down. Every morning I have to reboot
with the power button.
I am also joining the crowd with this issue. I have a 15" Powerbook G4 that has acted normally until recently. Not sure exactly when it started, but about the same time as the recent updates. Similar behavior to the previous forum posts.
When I manually put the laptop to sleep it freezes up before it sleeps and the multi-language reboot warning comes up. This also happens if it is set to auto-sleep after xx minutes.
When I try to wake it up, the screen is black and the power light shows it is on and it never unfreezes or I get the reboot message.
I have tried everything I can think of to troubleshoot this. I just re-installed the 10.4.8 update over the exisiting one (using an external boot drive made with SuperDuper) and it still happens... BUT when I put the laptop to sleep with the startup drive being external, it seemed to behave properly. I can't figure this out since the external clone was made only minutes earlier from the laptop... and it works. I have zapped PRAM, and done the battery removal / power button reset.
Below is the "report" I have been getting - and sending to Apple. They must be getting tired of the many I have sent.
Any thoughts out there?
Thanks.
Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x0000000000000020 PC=0x00000000002FA2A4
Latest crash info for cpu 0:
Exception state (sv=0x32E70000)
PC=0x002FA2A4; MSR=0x00009030; DAR=0x00000020; DSISR=0x40000000; LR=0x002E31B0; R1=0x1793BCD0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x002E31B0 0x002AE920 0x002F2EF4 0x0003C884 0x000A9314
Proceeding back via exception chain:
Exception state (sv=0x32E70000)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x2D24BC80)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
Kernel version:
Darwin Kernel Version 8.8.0: Fri Sep 8 17:18:57 PDT 2006; root:xnu-792.12.6.obj~1/RELEASE_PPC
panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x00095138 0x00095650 0x00026898 0x000A7E04 0x000AB780
Proceeding back via exception chain:
Exception state (sv=0x32E70000)
PC=0x002FA2A4; MSR=0x00009030; DAR=0x00000020; DSISR=0x40000000; LR=0x002E31B0; R1=0x1793BCD0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x002E31B0 0x002AE920 0x002F2EF4 0x0003C884 0x000A9314
Exception state (sv=0x2D24BC80)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
Kernel version:
Darwin Kernel Version 8.8.0: Fri Sep 8 17:18:57 PDT 2006; root:xnu-792.12.6.obj~1/RELEASE_PPC
Model: PowerBook5,8, BootROM 4.9.5f3, 1 processors, PowerPC G4 (1.5), 1.67 GHz, 1 GB
Graphics: ATI Mobility Radeon 9700, ATY,RV360M11, AGP, 128 MB
Memory Module: SODIMM0/J20STANDARD, 1 GB, DDR2 SDRAM, PC2-4200S-444
AirPort: AirPort Extreme, 405.1 (3.90.34.0.p18)
Modem: Jump, , V.92, Version 1.0,
Bluetooth: Version 1.7.8f2, 2 service, 0 devices, 1 incoming serial ports
Network Service: Built-in Ethernet, Ethernet, en0
PCI Card: pci106b,4318, sppci_othernetwork, SLOT-A
PCI Card: TXN,PCIXXXX-00, cardbus, PC Card
PCI Card: usb, usb, USB20
PCI Card: usb, usb, USB20
PCI Card: usb, ehci, USB20
Parallel ATA Device: Hitachi HTS721010G9AT00, 93.16 GB
Parallel ATA Device: MATSHITADVD-R UJ-846,
USB Device: Bluetooth HCI, , Up to 12 Mb/sec, 500 mA
USB Device: Apple Optical USB Mouse, Mitsumi Electric, Up to 1.5 Mb/sec, 500 mA
USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, Up to 12 Mb/sec, 500 mA
15" G4 PowerBook 1.67 Mac OS X (10.4.8)
G5 2.7 Gig Mac OS X (10.4.4) 3 Gig ram
15" G4 PowerBook 1.67 Mac OS X (10.4.8)

U2312HM and second monitor = Entering Power Save Mode

So, my monitor has not been able to turn on for about a week now. It shows that it's getting power, but after 3 seconds I get the message that it is going into power save mode. I am able to press some buttons on the monitor and a message pops up that there is no signal and to try typing or moving the mouse which doesn't work. I've attempted to change the input source which only leads to "No DisplayPort Cable - The display will go into Power Save Mode in 5 minutes.". I have tried a separate monitor which is extremely less powerful and I get the same message that it's entering power save mode. Could this be a fried video card or what's happening here?

Thanks for the reply Chris. I do have both DVI and VGA out ports and I will be testing that today. Not sure if this has anything to do with my issue or not but I might as well mention it. I have 4 2 GB ram sticks which came with my pc. I purchased two new 2 gb ram sticks due to some memory issues I was having. The problem is, the two new ram sticks I had were not the correct size but I attempted to use them anyway. Now prior to inserting these new ram sticks I cleaned my pc using air duster and a light suction vacuum cleaner, not sure if I got all of the dust. Once I found that the ram sticks were not the right size I then reinserted my older ram sticks and this is when the monitor issue occurred. A couple people had mentioned that this sounds like a bad video card, but could inserting wrong ram sticks affect the motherboard and in turn mess with the videocard?
Also, roughly 3 weeks prior to the monitor issue, the lights on the side of my case are generally dark blue (but can not confirm if this is normal as I rarely pay attention to it.) The only reason I bring this up is because the lights began to turn red, then a sortof clear light color progressively throughout the next couple of weeks, eventually not turning on at all. Again, I've never really noticed the lights on my pc to begin with so this could not mean a thing.

Lenovo G500s laptop monitor doesnt recover from power saver mode

Hii everybody,
i have been using this G500s laptop for an year or so...recently my laptop has started showing troubles with the screen saver or the power saver that comes by if i dont use my laptop for few mins..! when i dont use my laptop it goes to power saver mode and the monitor doesn not return back to power when i try to resume my work...!!! and interestingly i could hear the cooling fan running at high speeds and my laptop heating up... and it sounds like my whole laptop is working other than my monitor..!! my monitor is just a black screen..... and my system has began to slow down nowadays.. desperately need help on this..!! it has started becoming frequent

hi Murali993,
Welcome to the Forums.
Just to verify, when the machine goes into Power Saver Mode (Standby / Sleep), can you check if the power button is blinking (this is an indication that the machine successfully entered Sleep State).
If the power button is just a solid light and it's not blinking then the machine is likely not entering Sleep. In this case, consider doing the following:
1. Turn off Hybrid Sleep under Control Panel (Icon Views) > Power Options
- Link to picture
2. Set the computer's power setting to HIgh Performance and disable the HDD's power management settings (see this guide)
3. If you have external devices plugged-in (eg. Flashdrives), unplug them then perform a clean boot (this procedure temporarily disables background services/apps that are running in the background that's possibly hanging up the system as these are normally terminated before the machine goes to sleep).
Let me know how it goes.
Regards
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Dell 2407 Monitor entering power save mode immediately!!! :(

I have a Dell 24" 2407 Monitor hooked up to my 24" iMac (white 2.16GHz core 2 duo). Problem free for the past couple of years, until recently, my monitor keeps going into power save (when the iMac screen is active.
It's connected via DVI, and the funny thing is, is that the iMac still detects the monitor, but it's in power save mode.
I plugged the monitor into the MacBook Pro and it worked fine. So I'm guessing it's either the Mini DVI to DVI converter is stuffed OR something is wrong with my iMac. I'll try another dvi cable, otherwise will have to go to shudder VGA until I get a new Mini DVI to DVI converter. Unless anyone else has an idea as to what's going on?

How about if you open System Preferences Displays pane Display tab... Click on +Gather Windows+ on the display that is working. Then try adjusting things like resolution and +color depth+ on the non-working display to see if that has any effect.
Have you tried disconnecting the power cord on the display for a few minutes and reconnecting it? Does the display have an on-screen menu, and a command to reset the settings on the display to default?
A few more tests, if it still does not work.
Create a new admin user account in System Preferences Accounts pane
http://docs.info.apple.com/article.html?path=Mac/10.5/en/8235.html
Log out and log in to the new account. In the new account, does the display work or not work properly? If it works in the new account, that would indicate some problem in your regular user account.
Also try starting up from your Mac OS X installation disc. Does the display work when you are starting up from a different system? If so, that would indicate some problem in your current installed system.

Dell monitors go into power save cycle

I got 2 brand new Dell P2412H monitors to use as a dual display. However when the computer puts the display to sleep they go into a "Entering Power Save Mode" cycle and the display never shuts off it stays blue and continues to do that. This happens with either display even in single monitor setup. I have the problem on my old Powermac G5 and now on my new apple mac mini. What is happening?
I have read about similar problems here but they were not solved:
http://en.community.dell.com/support-forums/peripherals/f/3529/t/19422779.aspx
http://en.community.dell.com/support-forums/peripherals/f/3529/t/19447579.aspx
http://en.community.dell.com/support-forums/peripherals/f/3529/p/19434910/200449 89.aspx
And this guy even made a youtube video of the same problem but different monitors:
http://www.youtube.com/watch?v=48EFXz6xIEU

I've tried a factory reset on the monitors. My monitors sleep settings are fine and they wake up from being asleep perfectly. As of this morning my little trick of unplugging them and swapping connections has stopped working. Now, when I swap cables the video card automatically assigns the primary video output to one of the monitors and keeps the other one asleep. very strange. So when I unplug the mini video adaptor from the dvi cord and then place that same cord in the native dvi output on the video card the card automatically reassigns the primary video output to that channel. So no matter how much witching I do I always end up with the system acting like I have a stretched desktop but with only the left display working while the right one is asleep. It's time to give apple support a call.

W520 - now changes to "projector only" whenever display turns off in power save mode

I have my W520 in a dock with an external monitor. The display is configured to Extend - the external monitor is primary, and the desktop extends onto the W520 screen. I don't have a screen saver. I turn off the display after 30 minutes of inactivity. Until recently both the laptop and monitor screens would turn off after 30 minutes, and then both resume when I moved the mouse or pressed a key.
Recently, the system has started changing to "Projector Only" when the display turns off. After resuming from power save mode, only the external monitor activates, and the W520 screen is disabled. I have to use Fn-F6 to switch back to "Extend" to re-activate the laptop screen.
I have rebooted and re-saved the power plan.
Why has this happened, and how do I fix it?

Hi, timg11
I have a few questions so that I may gain a better grasp of this issue:
1) What is your machine type and model? You can find this information on the bottom of your machine. It should be in format XXXX-XXX.
2) What is your operating system?
3) Does this issue occur is the computer is not in the docking station? (Please try if you haven't already).
Thanks in advance,
Adam
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution!" This will help the rest of the community with similar issues identify the verified solution and benefit from it.

Power Save Mode - how to disable

My new Pavilion laptop (model # 17-e123cl) is connected to an external monitor. When I fold down the laptop screen the power saver mode kicks in and the computer goes off. I want it to stay on so I can place my wireless keyboard on top of the Pavilion and use the big external monitor. I was able to do this on my old Gateway but apparently not on this HP.
Is there a way to disable the power saver mode when it is closed so the computer will keep running and I can use the external monitor?

Hello gary,
Please go to the Options dropdown and choose Edit and remove your Serial # from your post.
Instead, it is more helpful to give your model number and operating system.
What you need to do is go into "Power Options/Advanced settings/Power buttons and lid" and change what happens when you shut the lid.
Here is a video from Microsoft on how to do it.
Hope it helps.

Monitor enters suddenly power save mode locks up machine

monitor enters suddenly power save mode locks up machine
I have all power saving settings at never in windows
I had 4x in 9 months bizarre crash suddenly my monitor turned black then went into energy saving mode then I was unable to reset using button I had to shut down by turning off power supply
HELP
amd quad core 980 msi 890fx-gd65 corsair twinx ddr 1333 2x2 gb
seasonic s series 520w psu
swiftech polaris129 powercolor 6790
coolermaster storm enforcer 2x 200mm
dell Dell UltraSharp U2212HM

Well, a few things could cause such a problem and it could be a true pain in the butt to narrow down.
How old is the computer? 9months
When this happens, is it when you are playing a game or other high load process?first times on web last 2 idle
If so are you keeping track of temperatures via core temp or some other program?using speccy and bios
Anything in the event log? nothing unfortunately
Any Graphical distortion other than the screen turning black or do you ever see a window popping up telling you a driver re-set was required. some window screen almost overlay in photshop 7 intermittent
Have you run memtest to check the memory? some portable apps and benchmarking apps
If its not a new comp, have you cleaned the comp recently and verifed all the fans are working.
Have you done an error check on the HDD? fans are ok
running win xp sp3

"Entering Power Save Mode"

Hi guys. I have an HP desktop and a Dell SR2320L Monitor. It was working fine until a few months back. I was out of town, came back last week and now every time I start my PC it just stays there "Entering Power Save Mode". I tried almost everything researching a solution for the problem but just won't work. Is there a way to check if the cable is the problem or the monitor or anything else? Any help will be much appreciated. Thank you.
Ankur

Hi Ankur,
Monitor may enter in power saving mode when it does not get the enough power for its operations. If monitor is the cause, you may try to re-seat the monitor cable and ensure the connections are secure. You may also try to swap the ends of cable and check if the issue persists. Another step you may try is to use a good known cable and see if the issue persists. If it does, as a last resort you may try to reset monitor to factory defaults. For more information on this, you may refer to manual of monitor: http://bit.ly/10ErgRX
Another possible cause of the same issue might be video drivers of your computer. You might need to uninstall and re-install the video drivers and may check the power options in operating system. You might need to check the HP website for download and installation of video drivers (relevant to the system model).
Please share the findings.

Monitor Goes into 'Power Saving Mode' HDMI

I have an LG monitor (IPS237-BN) which always goes into 'Power Saving Mode' when I connect my MacBook Air to it via a Thunderbolt-HDMI connection.
Sometimes it actually connects and I can mirror my displays (or count it as another), most of the time it doesn't. I have used different cables etc. I cannot install the driver because I do not have a CD drive.
Any help is appreciated, thanks!

Hi,
Update the the video driver from the NVIDIA web site.
Your PC bios should be 5.29 or higher so that is something to check.
The Truckee motherboard was recalled but you might be past that date.
HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
HP Photosmart Premium C309G, HP Photosmart 6520
HP Touchpad, HP Chromebook 11
Custom i7-4770k,Z-87, 8GB, Vertex 3 SSD, Samsung EVO SSD, Corsair HX650,GTX 760
Custom i7-4790k,Z-97, 16GB, Vertex 3 SSD, Plextor M.2 SSD, Samsung EVO SSD, Corsair HX650, GTX 660TI
Windows 7/8 UEFI/Legacy mode, MBR/GPT

6120 - Blank screen in power saver mode

Hi everybody!
I have recenty become a proud 6120 owner (my first symbian :-)), and I have 1 question:
how can I prevent in power saver mode, my screen to go complety blank??? I would like to see the status of my phone (time, missed calls, messages, etc.)!
this is really annoying!
can anybody help me, how to change/prevent this?
many thx in advance
daniel

In menu/settings/themes/powersaver I have to tick one of three options (time/date, text or animation). Whichever is ticked I get at least the clock in powersaver mode. Events show under the date (or text if you choose text) so keypad locked has a symbol, missed calls have a number (of missed calls) and a symbol and so on.
However I have also noticed the screen is totally blank after a while and pressing a button starts the powersaver cycle again - briefly showing the dark main screen (including missed call message etc) before showing the clock with the symbols for a short while again. The time it takes to enter powersaving mode is in the display settings but I can't see a setting for how long it shows for.
Why the clock etc doesn't stay I do not know - I presume even this would eat the batteries more than strictly necessary. I can't see any option to keep it but it may there somewhere!!

Force External Dell Display Into Power Save Mode

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