T530 loses sound when you pull the power cord out

When I pull the power cord out from my t530, I lose sound, until I reboot. I have run updater thingy to get all latest drivers, that seems to what have caused this problem in the first place. I was trying to get HDMI sound to work out of the mini display port which was a hit or miss challenge depending on the order of pluggin things in, but now this is the bigger chanllenge.

if I do a "test" on the device it says it is being used by another application. If I enable/disable the device it doesn't fix it.
I am not on a docking station, no accessories but a USB logitech wireless mouse.

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MPB Powers OFF when I connect the power cord

Just got a new MBP this weekend. When I connect the power cord after the battery gets low, the computer instantly shuts off. No warning, just shuts off. The battery can be at any charge level, and this will happen. Pull the power cord off, no problem. Put it back on, the computer is off. I have to restart, unsaved changes lost. This is my second MBP, and the first one never did this. I am about to drag it in to the Genius bar, but has this happened to anyone else? Sounds like a bad hardware issue to me. Could it be a settings issue? I've only been using it for about three days. Thanks in advance.

Welcome to Apple Discussions!
You might try resetting the SMC and see if this helps.
http://docs.info.apple.com/article.html?artnum=303319
Good luck!

Wich is the best? remove the batt. when you plug the power adaptor?

what is the best procedement when you connect the macbook pro with power adaptor for long periods?
remove the battery ?
or
leave it after total charging ?
thnaks for the help

There's no reason to remove the battery. The charger stops charging the battery once the battery is fully charged. Recharging won't occur until the battery's charge level drops below 95 percent. This protects the battery from constant recharging and from overcharging.
Removing the battery also results in the CPU automatically throttling down to half-speed.
For more on the topic:
http://www.apple.com/batteries/
http://docs.info.apple.com/article.html?artnum=86284
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Macbook air works only when connected to the power cord. Battery condition: replace now.

i have MacBook Air
OSX 10.9.4
Processor 1.7 GHz Intel core i5
Memory 4 GB 1333 MHz DDR3
Computer does not start without power supply and stops when the power cord is disconnected.
The battery condition: Replace Now
what do i do now?

If you're still under Apple Care, it will probably be done for free.
You left no clues as to the model of your MacBook Air, so we don't know its age.

Macbook pro turns off when taken off the power-cord, is the battery bad?

For a while my MCP when I take it off the charger it doesnt hold the whole time as it should and the battery doesnt last long, and now the past couple days when i take my laptop off the power-cord it will stay on for five minutes then shut down. I dont know what is going on, maybe a bad battery? I got my computer august 2006 . These are my numbers.
Battery Information:
Battery Installed: Yes
First low level warning: No
Full Charge Capacity (mAh): 590
Remaining Capacity (mAh): 431
Amperage (mA): 685
Voltage (mV): 12575
Cycle Count: 167
isnt the fully charge capacity a little low? what should I do?
thanks!

If your MacBook Pro is a core duo model you may have a bad battery and be elgible for a battery replacement. The batteries on the original core duo MacBook and MacBook Pro had the warranty extended and extra year. The details are in this link.
MacBook and MacBook Pro Battery Update 1.2
Call Apple at the number in the link and explain your problem. You could also go into an Apple store and get help there.

My laptop turns off when i remove the power cord

I have a Pavilion dv7-6c27cl running windows 7 (64 bit). Everytime I remove my laptop from the power cord, it shuts down immdiently. The battery says that it is at 77% and charging. I don't know what wrong at all. The light on the side is orange. Ideas on what's wrong and how to fix it?

It has to be a battery problem....I am getting that it just sits at 77% and never goes higher or lower? If you are still in warranty, the battery is covered (up to 1 year, I think), and if not you need to buy yourself a new battery. If by some chance you could try another known good battery that would be helpful but that seems unlikely.

Where can you get the power cord for a 2012 airport express?

Where can you get a power cord for a 2012 airport express or the equivalent? I couldn't find one in the online store.

I'm sure the OP found his solution, but I wanted to share mine in case it helps some future seeker.
There are a lot of brand new cords on eBay for less than $10 including shipping, which is way cheaper than the $39 stereo connector kit or an AC adapter from a retailer. I just bought a used-like-new one for $5.50.
The cord is made by Volex, part number APC7Q. The Apple part number is M9573LL/A. If the seller got it from the stereo adapter kit, they'll probably list it under MD836LL/A, which is the kit's part number. I got the best search results on eBay using just the Volex part number.
Best of luck!

My iPod has a black screen and when you press the power button nothing happens. Also when you plug it in the the computer or wall nothing happens.

My iPod was plugged in over night. When I woke up in the morning it had a black screen and wouldn't turn on at all. Also it doesn't say that its charging when it's plugged in and when plugged into the computer nothing comes up like it did before.

Reset it by holding the on/off and home buttons at the same time until you see the Apple logo (ignore the off slider if it appears first), then release. You won't lose any data by doing this.

My iMac running 10.8.2 in sleep mode was repeating three beeping sounds and was unresponsive. I had to pull the power cord to restart. Now it appears fine. Anyone know what the three beeps means?

What does a three beep repeating sound indicate?

3 beeps generally indicates a ram problem. Mac computers: About startup tones - Apple Support
3 successive tones, a 5 second pause (repeating): This indicates RAM does not pass a data integrity check.
You say your iMac was beeping during sleep? Have never heard that before. Try removing and reseating the ram.
Reset the PRAM How to Reset NVRAM on your Mac - Apple Support
You might also consider running The Apple Hardware Test OS X Mountain Lion: Use Apple Diagnostics or Apple Hardware Test
You should also update your OS X About the OS X Mountain Lion v10.8.5 Update - Apple Support
Finally you don't use Chrome do you? There have been reports of beeping while using Chrome, don't know why.

Kernel At 600% when plugged Into the power cord.

Everytime my computer is at 0-9% and I plug it in to charge, my computer lags and today I contacted apple support and they told me to check my cpu usage, to my surprise the kernel was at 600% and when I unplugged my computer it went down to 2%. Why is this happening? I have ressted the SMC and PRAM, and it's still the safe. I went into safe mode but it didn't help. What can I do to fix this. I'd also like to add that somethimes my fans get really loud but the SMC reset didn't fix it.
As of right now my temperature is 144 degrees and my fans are loud. (Is this normal?)

Make a Genius appointment they will diagnose it for FREE. If you have Apple Care any charges would be covered.
http://www.apple.com/retail/geniusbar/
Your subject indicates you have Snow Leopard but your info bar indicates a 2013 Mac. You posted in the Mavericks forum. Please clarify.

I have a Mac G4 double mirrored model and everytime I shut it off it will not go on when I hit the power off button. However, if I unplug and plug in the power cord it boots fine and everything is OK. The PMU and logic board have been reset. Any ideas?

I have a Power Mac G4 double mirrored model and everytime I shut it off it will not go on when I hit the power on/off button again. However, if I unplug and plug in the power cord it boots fine and everything is OK. The PMU and logic board have been reset. Sometimes my Mac goes on just by pressing the power on button but most times I have to pull the power cord and put it back in. Any ideas or help out there for this? Could it be a failing power supply? Apple Care says that this model is obsolete so there is no help from there. John
<E-mail Edited by Host>

Hi John,
That's often a sign of a bsad Capacitor in the Power Supply, but...
Might be time to replace the PRAM Battery, 4 years is close to their lifespan, far less if ever without AC power, & can cause strange startup problems...
http://eshop.macsales.com/item/Newer%20Technology/BAA36VPRAM/

Black screen when plug the power cord

Hi..
yesterday I bought a new laptop : hp 15-r138
When I plug the power cord - or unplug it .. the screen turn black for a second and then goes back to normal ..
Is this OK ?
Thanks

I've heard of this. Where when you do the update, if you let the screen go dim, or something you can't get it back because you can't see anything due to those controls running in the background at this stage of installation. I'm pretty sure you need to plug it into an external monitor to get it back maybe?

Turn off after unplug the power cord

Hi,
I have a MacBook Pro form 6-8 months and everything works great but from 2-3 days ago now everytime when i disconnect the power cord from the computer the system turn off.
I think the battery is good because i can use the computer only with battery (like im doing right now) and if i press the battery indicator button all green lights turn on and i can use the computer for 1-2 hours using battery only but for some reason if i connect the power cable again and disconnect later the computer is turned off.
I install all updates by apple.
not exist any kind of clear cmos, master reset or something like this

this is the information from battery, say:
Health Information:
Cycle Count: 199
Condition: Normal
Battery Information:
Model Information:
Serial Number:          D86106118KKDGDMA9
Manufacturer:          SMP
Device Name:          bq20z451
Pack Lot Code:          0
PCB Lot Code:          0
Firmware Version:          406
Hardware Revision:          2
Cell Revision:          157
Charge Information:
Charge Remaining (mAh):          1053
Fully Charged:          No
Charging:          No
Full Charge Capacity (mAh):          6128
Health Information:
Cycle Count:          199
Condition:          Normal
Battery Installed:          Yes
Amperage (mA):          -2710
Voltage (mV):          10784

When shutting down all devices at days end is it advisable to pull the power plug daily on the Time Capsule.

When shutting down all devices at days end is it advisable to pull the power plug daily on the Time Capsule.

It is up to you to decide.
My opinion would be that if Apple wanted you to power down the Time Capsule on a regular basis, they would have included an "Off" switch, or a means to power off the Time Capsule from your computer.

My IPhone's volume is not working. I have checked and tried everything. When I use my headset I can hear when phone rings or receive text msg when I pull the jack out I have no sound on anything

My IPhone's volume is not working. I have checked and tried everything. When I use my headset I can hear when phone rings or receive text msg when I pull the jack out I have no sound on anything

I had this problem with my 4s a couple of times when I'd taken the headphones out and it hasn't registered it. My solution was easy, all I had to do was turn the phone off and then on again.
Although I'm sure you've already tried this its a sometimes forgotten and very easy solution to a lot of problems. I hope you find out what's wrong.

T530 loses sound when you pull the power cord out

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