Ichat/internet disconnecting when lid is closed

Hello,
Whenever i'm online using ichat or I doing anything internet-related, when i shut the cover of the computer everything signs off....i get disconnected from the internet completely and kicked off of ichat/aim. how can i shut this off?
Thank you!

Closing the lid puts the computer to sleep, which closes all of its network connections except for the ability to wake it up by sending it a magic packet over the Ethernet interface.
(28178)

Similar Messages

Lose internet connection when lid is closed, but have to have it closed.

Hello, been enjoying my Macbook for some time now, but an issue arises. Everytime I close the lid, it goes into sleep mode and I lose my wireless internet connection, now I understand it was designed this way, but it makes it hard to download large files on the internet, especially since my house attracts dust pretty easily and it gets on the display.
I have to send and receive large files (recording program files) over MSN messenger, but I keep getting disconnected when the lid is shut, any way around this without having to download a program ?
I don't think running the Macbook lid-closed can create heat problems since it was designed to run this way when an external monitor is attached, am I right ? So shouldn't we be able to chose wether it goes to sleep or not when we want ? ... Big issue, at least for me ...
Francis.

You may want to take a look at this program called Sleepless. Should do the trick for you.
Zeb

Modem internet disconnects when screen in closed

when I use skype for many hours, i close the screen to have it switch off. after some time, the internet connection breaks. It does not with the same system windows 7 and the same modem on a desktop machine, where I do not use screen off, hence my suspicion of it being the culprit.
is there any windows setting which regulates some hardware functionality, which could lead to connection break? I find it unlikely that it could be caused by some failure of my lenovo x200.
what is strange is that the system does not hibernate or otherwise noticeably change its mode - just the internet. how to prevent connection break when the screen is off?

Look at this setting:
Lenovo Power Manager -> Global Power Settings -> Events -> Lid closed -> Advanced -> Stay online for
Set the time period, from 1 to 99 minuts.
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How can I get my MacBook to stay on and not sleep when lid is closed?

How can I get my MacBook to stay on and not sleep when lid is closed?

try this: http://www.macupdate.com/app/mac/37991/nosleep

Using NoSleep for MBP going to sleep when lid is closed

hy,
Is there any problem if I Use Nosleep (http://www.macupdate.com/app/mac/37991/nosleep) to keep my mac from going to sleep when lid is closed?

1. Reset PRAM. http://support.apple.com/kb/PH4405
2. Reset SMC.     http://support.apple.com/kb/HT3964
    Choose the method for:
    "Resetting SMC on portables with a battery you should not remove on your own".

My X1 always forgets the setting "Do nothing when lid is closed"

Dear all,
when I set the setting "Do nothing when lid is closed" in the global settings and in all other settings, this setting seems to be resetted each restart...
Driver are up2date....
Any ideas?

drgoebel wrote:
I want to use the external monitor, and this works when I set the setting to do nothing, but it keeps not reminded...
as Ed details... please be sure you've the pm app *and* pm driver updated.
cheers.
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How can i get my macbook pro too stay on and not sleep when lid is closed?

how can i get my macbook pro too stay on and not sleep when lid is closed?

If the machine is asleep, lid closed, and you plug in to an external monitor and an external USB keyboard, the machine will wake, anbd reconfigure the screen resolution for the external monitor, Once it has made this configuration change, you can open the lid and it will continue to address only the external monitor. At least that's how my early MacBook Pro unibody 13" works. It seems to run a bit cooler this way. It gets quite toasty with the lid closed while doing anything demanding and you are more likely to hear the fan come on. I have not seen any temps that would cause alarm, but I do get a high speed (6000 rpm), noisy fan sometimes with the lid closed, .
If you operate in the open-lid, external monitor only mode, if you deactivate the monitor for any reason, when it reactivates it will be running both screens, with all the navigation hassles this entails, so I generally set it not to deactivate the screen when in this mode.
Thus I agree with those who say that some of the cooling air is drawn in around the keyboard, the difference in cooling performance is observable. If you activate istat pro, get the computer hot running in clamshell mode, and open the lid, you can watch the CPU temp drop by a few degrees C within a couple minutes. It isn't a huge difference, but enough the lower the fan speeds.

NB 305-410 BL makes whistling sound when Lid is closed

My Toshiba Net Book NB 305-410BL makes whistling Sound when Lid is closed, Mic seems always Connected to Notebooks own internal Speakers and amplify all sounds can hear sound when I touch any where near the MIC ( Near the Web cam area ).

My Toshiba Net Book NB 305-410BL makes whistling Sound when Lid is closed, Mic seems always Connected to Notebooks own internal Speakers and amplify all sounds can hear sound when I touch any where near the MIC ( Near the Web cam area ).

MacBook Pro (mid 2012) turns on when lid is closed and MagSafe gets attached or detached.

I own a mid-2012 Macbook Pro with the 15" high resolution screen add-on (it's the model that was released alongside the new retina versions). The processor is a 2.6 GHz Intel Core i7. I run OS X 10.8.4.
I'd like to know if the following behavior is normal: when the computer is sleeping with the lid closed, and the MagSafe adaptor is either attached or detached, removing it or attaching it (with the lid still closed) will make the computer wake up from sleep. You can easily hear the fans starting when it does so. It'll stay on for 30 seconds to a minute, and then go back to sleep again. The screen doesn't seem to turn on when this happens and the lid is closed. Opening the lid when the computer exhibits this behavior results in a black (and useless) screen. In order to be able to use the pc you need to wait until it goes back to sleep on its own and then turn it back on.
Another (possibly related) issue appears when the PC turns off automatically (either while running or during sleep) because the battery is exhausted. When this happens, I usually attach the adapter (with the lid open, most of the times) and then press on the power button. A black-and-white screen with a loading bar appears for a few seconds, and then the full-color login screen appears (my pc is set to ask for the password every time it wakes from sleep). After the loading bar is gone and the full-color screen is back, I am unable to input my password, even though the password field looks focused. Neither the keyboard nor the mouse are responsive. This often happens in such a way that it is impossible for me to input my password (or interact with my pc) before it goes back to sleep for lack of interaction. Recently I've discovered that randomly pressing the power button and some keys on the keyboard (I still don't know what exactly triggers this) will make it able to receive input and thus I'll be able to type in my password and log in.
I'd like to know if any of you have encountered the two behaviors I've described and if you think they're normal or have any solutions for them.

Hello terabytest,
I would be concerned too if my MacBook Pro exhibiting the behavior you described. For a message like this, I recommend resetting your System Management Controller (SMC) and NVRAM.
Resetting the SMC on portables with a battery you should not remove on your own
Note: Portable computers that have a battery you should not remove on your own include MacBook Pro (Early 2009) and later, all models of MacBook Air, and MacBook (Late 2009).
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
You can find the full article here:Intel-based Macs: Resetting the System Management Controller (SMC)http://support.apple.com/kb/ht3964
Resetting NVRAM / PRAM
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
You can find the full article here:
About NVRAM and PRAM
http://support.apple.com/kb/ht1379
Thank you for using Apple Support Communities.
Best,
Sheila M.

Problem with multi-touch screen when lid is closed

I have a T400s with the MT screen, running a clean installed Win 7 32-bit and all latest Lenovo drivers/BIOS.
I use external screen/keyboard/mouse at work so I am used to have the lid closed. I set in power management in the way that closing the lid does not do anything (e.g., sleep or hibernate).
The problem is: when the lid is fully closed and external mouse is used, the mouse cursor randomly moves and clicks. When random clicks happen, I can see the finger-tap animation near the cursor on the external screen, suggesting that the MT screen receives input even when the lid is closed! It might be heat from the palm rest/keyboard area causing fake taps.
Leaving the lid slightly open (like 15 degrees) solves this problem.
EDIT 1: another clue of the above problem is that while the lid is closed, Windows 7's tablet input panel shows up on the left edge, which typically appears after a tap or a tablet pen gets close to the screen. I also noticed that the random clicks take place near the right edge of the screen.
Solved!
Go to Solution.

@ wesleyyin,
certainly strange. Some questions to help with the diagnostics;
Which TrackPoint cap you you have on your keyboard, soft domed, soft rim or classic domed (the hairy one)?
Can you try disabling the TrackPoint to see the problem goes away?
Anything else laid on top of the system or between screen and keyboard like a thin cloth or something?
Thanks
Andy ______________________________________
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MacBook backlight goes off when lid partially closed

My 2yr old MacBook backlight has started turning off when the screen is partially closed. It works fine if the screen is open beyond a certain angle (about 90 degrees), but turns off when the screen is closed beyond that angle. Comparing to another MacBook (newer system): the backlight stays on until the screen/lid is just about closed.
It's definitely the backlight (the logo goes off as well), not the system suspending.
I'm worried this may be an early sign of a general failure.
It's well out of warranty -- any ideas what part should I look at replacing?

Louie -
I have the mid 2009 MBP - is there a magnet inside the unibody aluminum housing? The lid latch below the track pad is smooth and seems to have some magnetic attraction to the lid itself.
S.U. -
My problem is that the screen does not go off when the lid is closed. The problems described with the SMC reset involve the screen backlight not turning on. It also says to not reset the SMC unnecessarily. WIll that reset affect anything else?
Tried the paper clip - no joy. Will check with a magnet at work.
Is there a time setting for sleep mode on close?
Message was edited by: Thomas Seery

Why trackpad generates 'fake' clicks when lid is closed on Windows 8?

Hi everyone,
I'm experiencing a pretty weired behavior by the trackpad - when the lid is closed, the trackpad generates fake clicks. I'm using an external mouse and suddenly getting right-clicks and things like that. As soon as I open the lid it all stops. I tried to clean the trackpad and the area of the display covering it when the lid is closed, thinking that something maybe confusing the pad, but it didn't really changed anything.
Thanks

bootcamp or virtual machine?

T440p: internet disconnects when using BT mouse

I have the 2x2 Thinkpad wireless card and when I use my bluetooth mouse the internet disconnects and I get a "limited connection". I have the latest drivers for everything.

Hi iphetamine and Jakoob,
Remember that this is users helping users here, moderated by volunteers like me. Although there is some Lenovo presence, they can't patrol the entire community. They do try to help with some of the broader issues.
Any possibility you're in a marginal WiFi reception area, and Bluetooth interferes with it?
I don't work for Lenovo. I'm a crazy volunteer!

New Macbook Pro Retina continually re-starting when lid is closed - Kernal Panic included

Hello,
I called 800-MYAPPLE for tech support but they were not able to help me at all, hoping someone here can help. My new MacBook Pro Retina has been continually re-starting when the lid is closed. It does not happen every time, may 20% of the time. I am running Windows 8 on Boot Camp if that piece of information is important. Here is the latest kernal panic from the log:
Interval Since Last Panic Report: 3662 sec
Panics Since Last Report:          2
Anonymous UUID:                    C579BA9D-B391-837E-352E-D84AB3A969F9
Fri Sep 13 07:42:57 2013
panic(cpu 6 caller 0xffffff8009eb8655): Kernel trap at 0xffffff7f8b1374f4, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x000000000000001f, CR3: 0x000000000c8ab000, CR4: 0x00000000001606e0
RAX: 0x0000000000000000, RBX: 0xffffff802027e600, RCX: 0x7fffffffffffffff, RDX: 0x0000000000000200
RSP: 0xffffff8131f6ba40, RBP: 0xffffff8131f6ba70, RSI: 0x00000000000001ff, RDI: 0x0000000000000001
R8: 0x0000000000000001, R9: 0x0000000000000000, R10: 0x0000000000000001, R11: 0x0000000000000000
R12: 0xffffff801e7b9001, R13: 0xffffff8131f6bba0, R14: 0x0000000000000000, R15: 0xffffff801e7b9000
RFL: 0x0000000000010246, RIP: 0xffffff7f8b1374f4, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x000000000000001f, Error code: 0x0000000000000002, Fault CPU: 0x6
Backtrace (CPU 6), Frame : Return Address
0xffffff8131f6b6e0 : 0xffffff8009e1d626
0xffffff8131f6b750 : 0xffffff8009eb8655
0xffffff8131f6b920 : 0xffffff8009ece17d
0xffffff8131f6b940 : 0xffffff7f8b1374f4
0xffffff8131f6ba70 : 0xffffff7f8b13e8e5
0xffffff8131f6bc40 : 0xffffff7f8b118c03
0xffffff8131f6bce0 : 0xffffff7f8b13ab16
0xffffff8131f6bd10 : 0xffffff7f8b0e8420
0xffffff8131f6bd50 : 0xffffff7f8b103536
0xffffff8131f6bd70 : 0xffffff7f8b0e1abd
0xffffff8131f6be30 : 0xffffff800a24907a
0xffffff8131f6be90 : 0xffffff7f8b0e3328
0xffffff8131f6bec0 : 0xffffff800a23c5a6
0xffffff8131f6bf40 : 0xffffff800a237045
0xffffff8131f6bf60 : 0xffffff8009e3e25e
0xffffff8131f6bfb0 : 0xffffff8009eb3137
      Kernel Extensions in backtrace:
         com.apple.iokit.AppleBluetoothHCIControllerUSBTransport(4.1.4f2)[EB81C577-517C- 3F19-BD03-A037B8DC1699]@0xffffff7f8b0da000->0xffffff7f8b101fff
            dependency: com.apple.iokit.IOUSBFamily(5.6.0)[065077C5-A49E-3C52-BDC0-60169E293563]@0xffff ff7f8ac7a000
            dependency: com.apple.iokit.IOACPIFamily(1.4)[A35915E8-C1B0-3C0F-81DF-5515BC9002FC]@0xfffff f7f8af92000
            dependency: com.apple.iokit.IOPCIFamily(2.7.3)[1D668879-BEF8-3C58-ABFE-FAC6B3E9A292]@0xffff ff7f8a446000
         com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport(4.1.4f2)[95445C14-13 1B-37D8-B6DE-2161643706A0]@0xffffff7f8b102000->0xffffff7f8b111fff
            dependency: com.apple.iokit.IOUSBFamily(5.6.0)[065077C5-A49E-3C52-BDC0-60169E293563]@0xffff ff7f8ac7a000
            dependency: com.apple.iokit.IOACPIFamily(1.4)[A35915E8-C1B0-3C0F-81DF-5515BC9002FC]@0xfffff f7f8af92000
            dependency: com.apple.iokit.IOPCIFamily(2.7.3)[1D668879-BEF8-3C58-ABFE-FAC6B3E9A292]@0xffff ff7f8a446000
            dependency: com.apple.iokit.AppleBluetoothHCIControllerUSBTransport(4.1.4f2)[EB81C577-517C- 3F19-BD03-A037B8DC1699]@0xffffff7f8b0da000
         com.apple.iokit.IOBluetoothFamily(4.1.4f2)[DDCDB040-B00B-3133-A379-7D8B0DAFA4E8 ]@0xffffff7f8b115000->0xffffff7f8b1b8fff
            dependency: com.apple.iokit.IOUSBFamily(5.6.0)[065077C5-A49E-3C52-BDC0-60169E293563]@0xffff ff7f8ac7a000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
12E55
Kernel version:
Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64
Kernel UUID: 896CB1E3-AB79-3DF1-B595-549DFFDF3D36
Kernel slide:     0x0000000009c00000
Kernel text base: 0xffffff8009e00000
System model name: MacBookPro10,1 (Mac-C3EC7CD22292981F)
System uptime in nanoseconds: 42069308095
last loaded kext at 5230813723: com.apple.driver.AppleHWSensor          1.9.5d0 (addr 0xffffff7f8be68000, size 36864)
loaded kexts:
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.driver.AudioAUUC          1.60
com.apple.iokit.IOBluetoothSerialManager          4.1.4f2
com.apple.filesystems.autofs          3.0
com.apple.driver.AGPM          100.12.87
com.apple.driver.ApplePlatformEnabler          2.0.6d1
com.apple.driver.X86PlatformShim          1.0.0
com.apple.filesystems.ntfs          3.10
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.driver.AppleHDAHardwareConfigDriver          2.3.7fc4
com.apple.driver.AppleHDA          2.3.7fc4
com.apple.driver.AppleUpstreamUserClient          3.5.10
com.apple.GeForce          8.1.2
com.apple.driver.AppleSMCPDRC          1.0.0
com.apple.driver.AppleIntelHD4000Graphics          8.1.2
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.nvidia.NVDAStartup          8.1.2
com.apple.iokit.IOBluetoothUSBDFU          4.1.4f2
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.1.4f2
com.apple.driver.AppleMikeyDriver          2.3.7fc4
com.apple.driver.AppleIntelFramebufferCapri          8.1.2
com.apple.driver.AppleLPC          1.6.0
com.apple.driver.ApplePolicyControl          3.4.5
com.apple.driver.AppleSMCLMU          2.0.3d0
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.AppleMuxControl          3.4.5
com.apple.driver.AppleBacklight          170.2.5
com.apple.driver.AppleMCCSControl          1.1.11
com.apple.driver.AppleUSBTCButtons          237.1
com.apple.driver.AppleUSBTCKeyEventDriver          237.1
com.apple.driver.AppleUSBTCKeyboard          237.1
com.apple.driver.AppleFileSystemDriver          3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          34
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.3.1
com.apple.driver.AppleUSBHub          5.5.5
com.apple.driver.AppleSDXC          1.4.2
com.apple.iokit.AppleBCM5701Ethernet          3.6.1b4
com.apple.driver.AirPort.Brcm4331          615.20.17
com.apple.driver.AppleAHCIPort          2.5.2
com.apple.driver.AppleUSBEHCI          5.5.0
com.apple.driver.AppleUSBXHCI          5.6.0
com.apple.driver.AppleEFINVRAM          1.7
com.apple.driver.AppleSmartBatteryManager          161.0.0
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleACPIButtons          1.7
com.apple.driver.AppleHPET          1.8
com.apple.driver.AppleSMBIOS          1.9
com.apple.driver.AppleACPIEC          1.7
com.apple.driver.AppleAPIC          1.6
com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0
com.apple.nke.applicationfirewall          4.0.39
com.apple.security.quarantine          2.1
com.apple.driver.AppleIntelCPUPowerManagement          196.0.0
com.apple.iokit.IOSerialFamily          10.0.6
com.apple.kext.triggers          1.0
com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.5
com.apple.driver.DspFuncLib          2.3.7fc4
com.apple.iokit.IOAudioFamily          1.8.9fc11
com.apple.kext.OSvKernDSPLib          1.6
com.apple.nvidia.gk100hal          8.1.2
com.apple.NVDAResman          8.1.2
com.apple.iokit.IOAcceleratorFamily          74.5.1
com.apple.iokit.IOSurface          86.0.4
com.apple.iokit.IOBluetoothFamily          4.1.4f2
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.1.4f2
com.apple.driver.AppleSMBusPCI          1.0.11d0
com.apple.driver.AppleHDAController          2.3.7fc4
com.apple.iokit.IOHDAFamily          2.3.7fc4
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.driver.X86PlatformPlugin          1.0.0
com.apple.driver.AppleSMC          3.1.4d2
com.apple.driver.IOPlatformPluginFamily          5.3.0d51
com.apple.driver.AppleThunderboltEDMSink          1.1.8
com.apple.driver.AppleThunderboltEDMSource          1.1.8
com.apple.driver.AppleThunderboltDPOutAdapter          1.8.9
com.apple.driver.AppleGraphicsControl          3.4.5
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.iokit.IONDRVSupport          2.3.7
com.apple.driver.AppleSMBusController          1.0.11d0
com.apple.iokit.IOGraphicsFamily          2.3.7
com.apple.driver.AppleUSBMultitouch          237.3
com.apple.iokit.IOUSBHIDDriver          5.2.5
com.apple.driver.AppleThunderboltDPInAdapter          1.8.9
com.apple.driver.AppleThunderboltDPAdapterFamily          1.8.9
com.apple.driver.AppleThunderboltPCIDownAdapter          1.2.6
com.apple.driver.AppleUSBMergeNub          5.5.5
com.apple.driver.AppleUSBComposite          5.2.5
com.apple.driver.AppleThunderboltNHI          1.7.8
com.apple.iokit.IOThunderboltFamily          2.4.0
com.apple.iokit.IOEthernetAVBController          1.0.2b1
com.apple.iokit.IO80211Family          530.4
com.apple.iokit.IONetworkingFamily          3.0
com.apple.iokit.IOUSBUserClient          5.5.5
com.apple.iokit.IOAHCIFamily          2.3.1
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com.apple.iokit.IOHIDFamily          1.8.1
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com.apple.security.sandbox          220.3
com.apple.kext.AppleMatch          1.0.0d1
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com.apple.driver.AppleKeyStore          28.21
com.apple.driver.AppleACPIPlatform          1.7
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com.apple.iokit.IOACPIFamily          1.4
com.apple.kec.corecrypto          1.0
Model: MacBookPro10,1, BootROM MBP101.00EE.B03, 4 processors, Intel Core i7, 2.4 GHz, 8 GB, SMC 2.3f35
Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In, 512 MB
Graphics: NVIDIA GeForce GT 650M, NVIDIA GeForce GT 650M, PCIe, 1024 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54333531533642465238432D50422020
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54333531533642465238432D50422020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xEF), Broadcom BCM43xx 1.0 (5.106.98.100.17)
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SD256E, 251 GB
USB Device: hub_device, 0x8087 (Intel Corporation), 0x0024, 0x1a100000 / 2
USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8510, 0x1a110000 / 3
USB Device: hub_device, 0x8087 (Intel Corporation), 0x0024, 0x1d100000 / 2
USB Device: hub_device, 0x0424 (SMSC), 0x2512, 0x1d180000 / 3
USB Device: BRCM20702 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x1d181000 / 5
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8286, 0x1d181300 / 8
USB Device: composite_device, apple_vendor_id, 0x820b, 0x1d181200 / 7
USB Device: composite_device, apple_vendor_id, 0x820a, 0x1d181100 / 6
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0262, 0x1d182000 / 4

I suspect some sort of hardware issue, run through this list of fixes and evaluations
..Step by Step to fix your Mac
Backup your data first, not to just TimeMachine as it has been know to fail to properly restore.
Most commonly used backup methods

Feature request Lock workstation (Win+L) when Lid is closed ~ power manager option

Under "Events" in Power Manager windows there are any options what should happen when you use this or that hotkey or when you close laptop lid.
But what it really misses is an option to just Lock the laptop - same pressing Win+L
Can you consider adding that option, when I close laptop lid to do just that?

I don't think that would ever be a feature of power manager since locking the screen is not a power management function, but check this out:
http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-77008
If your thinkpad has a camera you can configure it to lock automatically anytime there is no keyboard/mouse activity AND a face is not detected after xx seconds (including when screen is closed). It works great and I use it on my T500.
I realize this isn't exactly what you are looking for, but I offer it as a way to lock your screen if you can't remember to press Win+L before closing lid.

Ichat/internet disconnecting when lid is closed

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