Power adapter plugged or unplugged when using an external display?

What is the best practice if the Macbook is connected with an external display , keyboard and mouse...Power adapter plugged or unplugged? And how will it affect the Battery Capacity?

Plugged and if you have any more questions, see [Here|http://support.apple.com/kb/HT3131]. Notice that the answer to your question is step# 1.

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IMAC 27" issue when use as external display

I just boought an IMAC 27 inches, I have an issue using it as external display for my macbook pro. both machines support thunderbolt. The issue is not connecting it from my macbook pro to IMAC, but when I want to release and use my IMAC again as computer by clicking CMD F2, the connection did not get released. I tested using IMAC at apple store and it works fine. I can connect and disconnect using CMD F2. finally I checked the thunderbolt firmware in my IMAC and compare with the one at Apple store. They are not the same. the one I have is Port Micro Firmware Version: 2.1.1 and the one at Apple strore is Port Micro Firmware Version: 2.0.7. is there any fixed?

This is only possible by setting up ScreenRecycler or using Virtual Network Computing; all of these methods work over an Ethernet, FireWire, or wireless network.
(80641)

How to lower the brightness of my iMac, when used as external display for my MacBook Pro?

The keyboard brightness controlls of the iMac do not work. The keyboard brightness controlls of the MacBook only controll the MacBook. Same goes for the display set up of the MacBook, I can change the MacBooks brightness there but not the one of the secondary screen.
I am working in a pretty dark room and that iMac 27 is at full bightness. Gives me a headache. Please help.
Thanks

Right, it shoulld work if Mid 2011 & up, might it be a bad TB cable?
Here's how it's supposed to work...
http://support.apple.com/kb/HT3924
The mid 2011s & up need Thunderbolt...
http://support.apple.com/kb/TS3775

White spot on Sony TV when used as external display

I have my macbook (late 2007) connected via mini-DVI -> DVI -> HDMI to a Sony Bravia 1920 x 1080 LCD TV. If I don't mirror displays I get a white spot on the TV in the lower left hand side of the screen. I thought it was a bad pixel but it disappears if I change to mirroring and it moves around if I change the screen resolution on the TV. If I try another Macbook with the same setup no white spot so I figure the TV and cables are OK. Techtool Pro says the video memory is OK.
Any ideas what could be causing this ?
Thanks - Michael

I've had something like this happen to me a couple of times, but it always went away after a restart so I couldn't fully diagnose it.
Start out with a safe login, which will disable any programs that are set to open with your account. Enter your password, then hold down the shift key while clicking "Log In". Keep holding it down until you can see the desktop.
If the white spot is gone, go to Accounts preferences, note what's there, and start removing programs, logging out and back in after each one so see if the problem returns.

Macbook won't sleep with power adapter plugged in

Hi,
My Macbook has stopped going to sleep if the power adapter is plugged in.
I have the power adapter energy setting to sleep after 30 minutes. When I got the Macbook (about a month ago) the thing would sleep until I pressed the spacebar.
Now, the screen blanks but otherwise the Mac remains awake.
If I close the lid the Mac immediately goes to sleep.
I have reset the SMU but this didn't fix the problem. I also checked disk permissions and verified the disk in Disk Utility - all good.
Suggestions?
Thanks,
John

my MacBook has also stopped going to sleep with the power adapter plugged in or when using battery power, unless I close the lid. Did you ever figure out the problem? Did you try calling Apple Care?
thanks,
Liz

Powerbook G4 won't charge battery or run with power adapter plugged in.

My Titanium Powerbook G4 will not charge the battery or run with the power adapter plugged in. When plugged in the power adapter doesn't change to amber showing its charging. Instead it has a green light that flashes off and on. I thought it was a defective power adapter but when its plugged in to another powerbook its seems to be working properly. I reset the PMU but that didn't help. I have been unable to find anything that would tell me what a flashing green means.
Powerbook Titanium G4 Mac OS X (10.3.9)

Hi, Marshall. With no power being supplied to the Mac for several months, not only has your main battery gone flat (and may never again be able to take a charge), but your internal backup battery has also gone flat. A Tibook with a dead backup battery generally will not start up at all, even with AC power connected.
Try this: remove the main battery and leave the AC power adapter connected overnight in an attempt to recharge the backup battery. If the Powerbook won't start in the morning under AC power, the backup battery is shot, has lost the ability to be charged, and must be replaced.
If the PB starts up in the morning on AC power, set the date and time correctly, shut the computer down, insert the main battery, and allow 48 hours with AC power connected in an attempt to charge the main battery. Then disconnect the AC adapter and try to start up under battery power. If that doesn't work, and no lights or only one flashing light appear when you press the power-indicator button on the battery, you'll have to replace the main battery.
http://www.apple.com/batteries/notebooks.html

Is it better to use my Pro with the power adapter plugged in or out?

After charging my MBP's battery to 100%, which is better?
- keep the power adapter plugged in to the laptop and resume using until you want to turn off the laptop
OR
- because the battery is already at 100%, unplug the adapter and resume using until you feel like you should charge the laptop again (maybe around 80%-90%)

If you are convenient to an AC outlet it's fine to use the adapter. However, keeping the AC adapter connected will not have an adverse affect on the battery. Once the battery has been fully charged it will stop charging. Recharge will begin once the battery's charge drops below 95%. LIthium-Ion/Polymer batteries do not exhibit memory effects. See the following:
About Batteries in Modern Apple Laptops
Apple - Batteries - Notebooks
Extending the Life of Your Laptop Battery
Apple - Batteries
Determining Battery Cycle Count
Calibrating your computer's battery for best performance
Battery University

Power adapter plugs - all the same?

Is the removable plug for all white power adapters, regardless of wattage, the same? i.e. - Could I remove the extended adapter plug cable on my iBook power adapter and use it on my MacBook Pro power adapter?
According to Apple's store description of their world power adapter plug kit, that would seem to be the case. However, the new MacBook is conspicuously absent from their list of compatible devices. Surely this is just an oversight, but it makes me pause for a moment to question the inter-compatibility of these plugs.

It's just a cable - If it fits yes.

2009 Macbook Pro's fan spin faster with power adapter plugged in?

I was playing restaurant city on facebook with macbook pro with the power adapter plugged in
( a flash game)
after a while, the fan starts to spin faster and faster and made noise, and the body of the laptop starts getting hot too.
However, when I play the game without the power adapter, the laptop stays more quiet, and the i can't hear the fan spin anymore...(which sounds good)
but what i am worrying is that, is the hardware SUPPOSED to get hot and the fan is supposed to spin faster? the reason why it is not is because the computer recognize the power adapter is not plugged in, so it forced the fan to stay at a lower rpm to conserve power? (which do harm to my hardware?)

Hi
that sounds normal to me - charging the battery produces heat, which must be removed via the fans.
They didn't run slower to conserve power, but because they weren't needed to remove the heat by=product of charging.
Flash is a real cpu burden.

MacBook Pro i5 with retina will not recognize WD Passport even though I successfully used it to transfer programs and files from my older MacBook ten days ago. It receives power from the USB, but when using Time Machine I receive the message that there is

MacBook Pro i5 with retina will not recognize WD Passport even though I successfully used it to transfer programs and files from my older MacBook ten days ago. It receives power from the USB, but when using Time Machine I receive the message that there is not an external device connected.

If the modem is also a router, either use the modem in bridge and run pppoe client on the TC.. that is assuming ADSL or similar eg vdsl. If it is cable service.. and the modem is a router, then bridge the TC.. go to internet page and select connect by ethernet and below that set connection sharing to bridge.
Please tell us more about the modem if the above gives you issues.

HT4124 can I keep the magsafe power adapter plugged in to computer all the time?

Can I keep the magsafe power adapter plugged in to my computer from the power source at all times?

it is ok to keep it in all the time, BUT at least once a month let it run the battery down to 10-15% then do a full recharge.

Can get past the "Power adapter plugging into wall" icon

I just got my brothers older 60gb Photo ipod and am trying to get it working on my computer. Did the whole restore thing, but now it is stuck at the Power adapter plugging into wall icon. I didn't have the original wall plug so I got a universal one at Radio Shack. Only the ipod still has the darn icon on it and I can't get past it. Any suggestions>

Lets do a trick. Connect the iPod and the cabel. The USB connector has 2 prongs that stick out a little more than the rest the goal. is to push it in a little so it charges but does not sync. Give It A Try.

Power Adapter Plug Keeps Disconnecting on 1.67Ghz ***

I constantly have to re-push in my power adapter plug into the
Powerbook 1.67 Ghz. It seems as though the socket in the Powerbook just wants to squeeze the male part of the adapter back out again and again. I have 2 power adapters that this happens with, so I am almost certain it's the female socket on the Powerbook itself.
Has anybody been able to get Apple to cover this problem under warranty?
- Ted

If you are still under warranty I would suggest you contact AppleCare regarding your issue. Every case is unique so just because one person may have gotten it fixed, or has been refused, does not necessarily mean this will fillow in all cases.

How can I use an external display with my MBP lid closed and disconnected to power?

I know that I can use an external display when my MBP lid is closed and it is connected to power. I was wondering why it does not work when the power cable is removed.
I only use an external display when I am at home so my MBP acts like a Mac Pro or Mac Mini in that way, but it is not good to leave the battery charging constantly on a MBP so I want to disconnect the power and use external display and have the lid closed. Is this possible or do I have to leave my lid open when running on battery power?

I'm plugged into my wall socket at least 90% of the time - probably more. I always make sure that I take my MBP off mains about once every two weeks and let it run down to about 30-40% and then plug it back up. This keeps the ions flowing and the battery healthy. My MBP will be one year old on March 20, 2013, and my battery health is still at 99%. I run in clamshell mode most of the time now - since I bought a 27" Apple Thunderbolt Display. Only occasionally am I off mains - and then because I'm exercising my battery, usually.
Don't worry about running of mains most of the time - just be sure and unplug about once every two weeks (or twice a month) and let your battery dip to the 30-40% mark and you'll be fine.
Good luck,
Clinton

Hi! My imac27 fusion drive late 2013 restarts randomly when using 30" Cinema Display. What could cause this?

Hi! My imac27 fusion drive late 2013 restarts randomly when using 30" Cinema Display.
32 GB Apple RAM, Mavericks 10.9.2
I'm using power outlets that eliminitates surge fluctuations.
What could cause this? What can i do? I', a bit desperate!

Adapter: Apple Mini DisplayPort to Dual-Link DVI Adapter
I wonder what the "Fault CR2: 0xffffff80078ca4f0, Error code: 0x0000000000000000, Fault CPU: 0x0" is...
Panic log:
Anonymous UUID:       44957DF9-C5B4-5AE1-AD54-9C81A374FC95
Tue Mar 18 03:52:54 2014
panic(cpu 0 caller 0xffffff80052dbe2e): Kernel trap at 0xffffff800523404e, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0xffffff80078ca4f0, CR3: 0x000000004329d056, CR4: 0x00000000001606e0
RAX: 0xffffff838906d000, RBX: 0xffffff838905d000, RCX: 0xffffff80058ca4f8, RDX: 0x0000000000000000
RSP: 0xffffff8394cbbd60, RBP: 0xffffff8394cbbd90, RSI: 0x0000000034089b0e, RDI: 0xffffff80058874c8
R8: 0x0000000000000001, R9: 0xffffff8394cbbe90, R10: 0x0000000000000020, R11: 0x0000000000000206
R12: 0x0000000000000005, R13: 0x000006005279d2e6, R14: 0xffffff80491ceb20, R15: 0xffffff80078ca4e8
RFL: 0x0000000000010046, RIP: 0xffffff800523404e, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0xffffff80078ca4f0, Error code: 0x0000000000000000, Fault CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff8394cbb9f0 : 0xffffff8005222fa9
0xffffff8394cbba70 : 0xffffff80052dbe2e
0xffffff8394cbbc40 : 0xffffff80052f3326
0xffffff8394cbbc60 : 0xffffff800523404e
0xffffff8394cbbd90 : 0xffffff8005233b17
0xffffff8394cbbdb0 : 0xffffff800524f18d
0xffffff8394cbbde0 : 0xffffff80052165da
0xffffff8394cbbe20 : 0xffffff80052163f4
0xffffff8394cbbe80 : 0xffffff8005213c1d
0xffffff8394cbbef0 : 0xffffff800521e043
0xffffff8394cbbf70 : 0xffffff80052c976d
0xffffff8394cbbfb0 : 0xffffff80052f3b46
BSD process name corresponding to current thread: Logic Pro X
Mac OS version:
13C64
Kernel version:
Darwin Kernel Version 13.1.0: Thu Jan 16 19:40:37 PST 2014; root:xnu-2422.90.20~2/RELEASE_X86_64
Kernel UUID: 9FEA8EDC-B629-3ED2-A1A3-6521A1885953
Kernel slide:     0x0000000005000000
Kernel text base: 0xffffff8005200000
System model name: iMac14,2 (Mac-27ADBB7B4CEE8E61)
System uptime in nanoseconds: 6598450610233
last loaded kext at 8144333788: com.apple.driver.AppleHWSensor          1.9.5d0 (addr 0xffffff7f874fb000, size 36864)
loaded kexts:
com.caiaq.driver.NIUSBHardwareDriver          2.6.0
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.filesystems.autofs          3.0
com.apple.driver.AppleRAID          4.0.6
com.apple.driver.AppleBluetoothMultitouch          80.14
com.apple.iokit.IOBluetoothSerialManager          4.2.3f10
com.apple.driver.AppleMikeyHIDDriver          124
com.apple.driver.AppleGraphicsDevicePolicy          3.4.35
com.apple.driver.AppleMikeyDriver          2.6.0f1
com.apple.driver.AudioAUUC          1.60
com.apple.driver.AGPM          100.14.15
com.apple.driver.ApplePlatformEnabler          2.0.9d1
com.apple.driver.X86PlatformShim          1.0.0
com.apple.driver.AppleHDAHardwareConfigDriver          2.6.0f1
com.apple.driver.AppleHDA          2.6.0f1
com.apple.driver.AppleUpstreamUserClient          3.5.13
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.GeForce          8.2.4
com.apple.iokit.IOBluetoothUSBDFU          4.2.3f10
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.AppleIntelHD5000Graphics          8.2.4
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AppleUSBDisplays          360.8.14
com.apple.driver.AppleMuxControl          3.4.35
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.2.3f10
com.apple.driver.AppleHWAccess          1
com.apple.driver.AppleSMCLMU          2.0.4d1
com.apple.driver.AppleBacklight          170.3.5
com.apple.driver.AppleMCCSControl          1.1.12
com.apple.nvidia.NVDAStartup          8.2.4
com.apple.driver.AppleIntelFramebufferAzul          8.2.4
com.apple.driver.AppleIntelMCEReporter          104
com.apple.driver.AppleLPC          1.7.0
com.apple.driver.AppleThunderboltIP          1.1.2
com.apple.iokit.SCSITaskUserClient          3.6.6
com.apple.driver.AppleUSBODD          3.4.1
com.apple.driver.CoreStorageFsck          380
com.apple.driver.AppleFileSystemDriver          3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          35
com.apple.driver.AppleUSBHub          666.4.0
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.5.1
com.apple.driver.AppleSDXC          1.5.2
com.apple.driver.AirPort.Brcm4360          831.21.63
com.apple.iokit.AppleBCM5701Ethernet          3.8.1b2
com.apple.driver.AppleUSBXHCI          670.4.0
com.apple.driver.AppleAHCIPort          3.0.0
com.apple.driver.AppleACPIButtons          2.0
com.apple.driver.AppleRTC          2.0
com.apple.driver.AppleHPET          1.8
com.apple.driver.AppleSMBIOS          2.1
com.apple.driver.AppleACPIEC          2.0
com.apple.driver.AppleAPIC          1.7
com.apple.nke.applicationfirewall          153
com.apple.security.quarantine          3
com.apple.kext.triggers          1.0
com.apple.driver.IOBluetoothHIDDriver          4.2.3f10
com.apple.driver.AppleMultitouchDriver          245.13
com.apple.iokit.IOSerialFamily          10.0.7
com.apple.driver.DspFuncLib          2.6.0f1
com.apple.vecLib.kext          1.0.0
com.apple.iokit.IOAcceleratorFamily          98.14
com.apple.nvidia.driver.NVDAGK100Hal          8.2.4
com.apple.nvidia.driver.NVDAResman          8.2.4
com.apple.iokit.IOBluetoothFamily          4.2.3f10
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.iokit.IOSurface          91
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com.apple.iokit.IOAudioFamily          1.9.5fc2
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com.apple.iokit.IOHDAFamily          2.6.0f1
com.apple.driver.AppleBacklightExpert          1.0.4
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com.apple.driver.AppleThunderboltEDMSink          2.1.3
com.apple.driver.AppleUSBHIDKeyboard          170.15
com.apple.driver.AppleHIDKeyboard          170.15
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com.apple.driver.AppleUSBMergeNub          650.4.0
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com.apple.iokit.IO80211Family          630.35
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com.apple.iokit.IONetworkingFamily          3.2
com.apple.iokit.IOUSBFamily          675.4.0
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com.apple.driver.AppleEFINVRAM          2.0
com.apple.driver.AppleEFIRuntime          2.0
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com.apple.iokit.IOSMBusFamily          1.1
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com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
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com.apple.driver.DiskImages          371.1
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com.apple.driver.AppleFDEKeyStore          28.30
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Power adapter plugged or unplugged when using an external display?

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