External monitor flickers when waking up from sleep

I use an external monitor with my new MacBook. All works well, but I have noticed that if I start using the external after the screen has gone to sleep, I sometimes get a problem on the external where the screen flickers and breaks up. If I disconnect and reconnect the Mini DisplayPort then the problem resolves, has anyone else seen this?
Tony

I have the same issue with my new macbook.
When i wake the computer from a partial sleep the screen flickers and i get line distortion through the image.
If i put the machine to sleep unplug the mini dvi adapter and replug it in and wake the computer up the problem disappears.
The issue is also intermittent doing about 3 times out of every 10 wake ups...
If anyone has any suggestions it would be great, I a using a new Dell 2208WFP monitor.

Similar Messages

External display issues when waking display from sleep

After waking my external display from sleep (the entire Macbook was not asleep, just the external display), the garbled colored dots kept appearing at the top and bottom of the screen, only then for the entire display to go black, then about 5-10 seconds later the images comes back, but with the garbled colored dots at the bottom. It will keep doing this over and over again.
It's only happened once so far, but I seem to remember reading about some issues when waking from sleep with the new unibody Macbooks with regards to external displays. Is this a known issue with these Macbooks?

There have been similar reports. However, not all external displays in combination with a MacBook will exhibit this problem. Thus, it seems either display specific or something that is caused by a cross between one display and a MacBook.
I assume that you are using one of Appe's mini DisplayPort to DVI adapters to connect to the external display. In that case have you installed the latest firmware update for the adapter?

Green pixels on external monitor with MBA coming up from sleep?

Has anyone else experienced green pixels on external monitor with MBA coming up from sleep? I can get rid of these pixels either restarting MBA or switch off the monitor for a five secs and then switch it back on. These pixels do not show up within screenshots.. or neither on MBA own screen but they do reappear on external monitor (used with mini DP-DVI-adapter) after every sleep cycle.
http://ssh.nbl.fi/~nbl4264/gp/ (few pics where these green pixels appear on)

I have the same issue with my new macbook.
When i wake the computer from a partial sleep the screen flickers and i get line distortion through the image.
If i put the machine to sleep unplug the mini dvi adapter and replug it in and wake the computer up the problem disappears.
The issue is also intermittent doing about 3 times out of every 10 wake ups...
If anyone has any suggestions it would be great, I a using a new Dell 2208WFP monitor.

High power comsumption and wrong setting when waking up from sleep

See here for some more information: http://forums.lenovo.com/t5/Windows-7-RTM-Discussion/High-Power-Consumption-with-Windows-7/td-p/1668...
Settings: T400, integrated GPU,"maximum battery live" power sheme, brightness level 3, wlan on. Newest switchable graphics driver, power manager and power management drivers installed, SU4 didn't find newer drivers.
Power consumption is between 12-16W most of the time, whereas it was close to 10W on XP, from what i heard from a friend, i installed win7 on my machine right after i bought the thinkpad.
When waking up from sleep( i think hibernation as well) power consumption is abnormal, because both GPUs are activated. You have to switch to to the dedicated and back to the integrated via power manager to deactivate the ATI, which is very annoying.
Is lenovo working on these issues or are there any workaroungs already?

I've got similar problems on a T400 with hybrid graphics running Windows 7 x64 Professional, upgraded from Vista x64 Professional. I've upgraded everything to the latest (driver, bios, etc etc) using System Update.
When I boot up from cold, and switch to using batteries, the power consumption is around 8w. Very good.
Then I suspend, and resume from suspend, and the power consumption shoots up to like 20w. Horrible.
Then I manually switch to "High performance" and then back to "Energy saving", the power consumption comes back down, but to >9w, which is like 13% above the original 8w level. Acceptable, but not good.
This seems to indicate there're at least two problems with the power management aspect of T400 + Win7 x64:
First, there is the well-known problem that both internal and external graphics cards get turned on upon resume. Lenovo, please fix this problem. It's completely unacceptable to have to manually perform that switching every time one closes, and then opens the lid, or loss 60% of the battery life. And I do need to use the external GPU from time to time, so disabling it at BIOS level is not acceptable either.
Second, there is the more subtle problem that some other hardware/driver besides the graphics card makes the T400 draw an extra >1w upon resume.
I really wonder if these problems occur with T400 preinstalled with Win7 x64. If they do, shouldn't every major laptop review sites take notice of the defect and warn people. If they don't, then I do not really see why it's so hard for Lenovo to provide earlier users with the right driver/registry patch/etc to enable the correct behavior. As far as I know, these problems have not been fixed since Win7 came out.
Finally let me add that other that this, I'm extremely satisfied with my T400/Win7 system. The thermal dissipation, noise level, and durability are just top-notch. But this just makes the above mentioned problems more of a thorn in the side!

OSX 10.9.1 macbook pro 13 retina - wifi does not reconnect automatically when waking up from sleep mode since I have a Bluetooth apple magicmouse

Hello,
My config is OSX 10.9.1 new macbook pro 13 retina (2014).
The wifi does not reconnect automatically when waking up from sleep mode since I have a Bluetooth apple magicmouse.
It was not the case before I bought the BT mouse.
Is this problem between Wifi and bluetooth coming from the OS?
Is there a fix already available or scheduled?
Thanks

Hello alexandrefromfrance
Check the Symptom: The network connection drops unexpectedly section for steps on what to do when your MacBook Pro does not connect after waking from sleep. I have also quoted the section on troubleshooting the issue as well.
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Symptom: After restarting or waking from sleep, my computer might not connect to the Internet
After waking from sleep or starting up, your computer may not show that it is connected to a Wi-Fi network.
After start or wake, your computer may indicate that it is connected to a network, but does not connect to the Internet.
Solution
Use these steps if your computer does not automatically connect to your desired Wi-Fi network.
Check your TCP/IP settings in the Network pane of the System Preferences. Click the "Renew DHCP lease" button
Choose System Preferences from the Apple menu.
Choose Network from the View menu.
Select Wi-Fi, then click the Advanced button in the lower-left hand corner of the screen.
Click the TCP/IP tab from the top of the screen.
Click the "Renew DHCP lease" button.
Select the Wi-Fi tab and view your Preferred Networks list.
Select each network and click the minus sign to remove those networks from your Preferred Networks list.
Click OK and close the Network preferences.
Remove your stored network passwords using the Keychain Access Utility.
Open Keychain Access from /Applications/Utilities. Your window will look like this:
Remove your AirPort network passwords from the login keychain: Select the "login" keychain from the Keychain sidebar. Click the "Kind" column to order the list of keychain items by their type. Remove all entries of the kind: "AirPort network password".
Remove your AirPort network passwords from the System keychain: Select the "System" keychain from the Keychain sidebar. Click the "Kind" column to order the list of keychain items by their type. Remove all entries of the kind: "AirPort network password".  Note: The above steps will remove your Wi-Fi network passwords. If you do not know them, or if your network does not use passwords to restrict access, you should contact your network administrator.
Restart your computer.
Join your Wi-Fi network. You will need to enter your password for your network again if it requires one.
Regards,
-Norm G.

Screen issues when waking up from sleep

Very strange things going on with the screen on my new MBP, it has only occurred on a very few occasions now, after waking up from sleep. I noticed two strange effects happening, not at the same time so I don't know if they are related or not.
1) Sometimes the screen shows a varying brightness pattern at the bottom, I think caused by some of the LEDs from the backlighting having a different brightness then others.
2) Sometimes the entire screen has a blueish hue.
Both issues are fixed when I restart the computer.... anyone know what might be going on...?

Also when it wakes up from sleep the screen flashes, don't think its supposed to do that.
Here is a picture I took with my phones that shows how the screen looks like, notice the difference in brightness in a pattern.
http://img510.imageshack.us/img510/2551/dsc00266oe7.th.jpg

After snow upd - imac 24" c2d crashes when waking up from sleep mode

hi,
I´ve a imac 24" c2d and installed snow over working 10.5.8. everything was ok, but now if the mac is waked up from sleep, it crashes
here is the logfile:
Interval Since Last Panic Report: 3901 sec
Panics Since Last Report: 1
Anonymous UUID: BE4BB7BB-FF5F-4343-9806-47D7A9743D1A
Sat Aug 29 21:16:07 2009
panic(cpu 0 caller 0x226297): "thread_invoke: preemption_level 1, possible cause: blocking while holding a spinlock, or within interrupt context"@/SourceCache/xnu/xnu-1456.1.25/osfmk/kern/sched_prim.c:1471
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x5cb53918 : 0x21acfa (0x5ce650 0x5cb5394c 0x223156 0x0)
0x5cb53968 : 0x226297 (0x5864e8 0x1 0x5864a8 0x225e89)
0x5cb539e8 : 0x22699d (0x87f401c 0x87f401c 0x5cb53a48 0x232085)
0x5cb53a58 : 0x226a2b (0x0 0x0 0x0 0x21910a)
0x5cb53a78 : 0x29c008 (0x0 0x0 0x5cb53acc 0x1)
0x5cb53b08 : 0x32e160 (0x7f5d150 0x95d7900 0x4a997e49 0x3121c3)
0x5cb53b38 : 0x34911c (0x100a8c0 0x8162c04 0x5cb53be8 0x2345ba)
0x5cb53cb8 : 0x357d77 (0x587d9f00 0x0 0x0 0x5cb53d10)
0x5cb53d48 : 0x4aeb5f (0x961a660 0x0 0x587d9f00 0x5cb53e44)
0x5cb53e08 : 0x4b4eea (0x961a660 0x5cb53e44 0x84aaa00 0x587d9f00)
0x5cb53ee8 : 0x4b52ff (0x84aaa00 0x0 0x87d81b4 0x39)
0x5cb53f78 : 0x4ed85f (0x8259d20 0x84d6b48 0x87d81b4 0x2270aa)
0x5cb53fc8 : 0x29d3fd (0x84d6b44 0x1 0x10 0x81ed9e4)
BSD process name corresponding to current thread: mDNSResponder
Mac OS version:
10A432
Kernel version:
Darwin Kernel Version 10.0.0: Fri Jul 31 22:47:34 PDT 2009; root:xnu-1456.1.25~1/RELEASE_I386
System model name: iMac7,1 (Mac-F42386C8)
System uptime in nanoseconds: 52473064073
unloaded kexts:
(none)
loaded kexts:
com.parallels.kext.prl_vnic 4.0 3844.409800 - last loaded 24033197772
com.parallels.kext.prl_netbridge 4.0 3844.409800
com.parallels.kext.prlusbconnect 4.0 3844.409800
com.parallels.kext.prlhidhook 4.0 3844.409800
com.parallels.kext.prl_hypervisor 4.0 3844.409800
com.markspace.iokit.IOMissingSyncMassStorage 199
at.obdev.nke.LittleSnitch 2.1.05
com.apple.driver.InternalModemSupport 2.6.0
com.apple.filesystems.autofs 2.1.0
com.apple.driver.AppleHWSensor 1.9.2d0
com.apple.driver.AppleHDA 1.7.4a1
com.apple.driver.AppleUpstreamUserClient 3.0.5
com.apple.driver.AppleTyMCEDriver 1.0.1d8
com.apple.kext.ATIFramebuffer 6.0.0
com.apple.DontSteal_Mac_OSX 7.0.0
com.apple.driver.AudioIPCDriver 1.1.0
com.apple.driver.AppleIRController 161
com.apple.driver.AppleIntelYonahProfile 14
com.apple.driver.AppleIntelPenrynProfile 17
com.apple.driver.AppleIntelNehalemProfile 11
com.apple.driver.AppleIntelMeromProfile 19
com.apple.driver.ACPISMCPlatformPlugin 3.4.0a20
com.apple.driver.AppleGraphicsControl 2.8.16
com.apple.driver.AppleBacklight 170.0.2
com.apple.driver.AppleLPC 1.4.6
com.apple.ATIRadeonX2000 6.0.0
com.apple.driver.AppleHIDKeyboard 1.1.5f1
com.apple.driver.CSRHIDTransitionDriver 2.2f18
com.apple.iokit.SCSITaskUserClient 2.5.0
com.apple.BootCache 31
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.iokit.IOAHCIBlockStorage 1.5.0
com.apple.driver.AppleUSBHub 3.7.8
com.apple.driver.AppleHPET 1.4
com.apple.driver.AppleAHCIPort 2.0.0
com.apple.driver.AppleIntelPIIXATA 2.5.0
com.apple.driver.AppleUSBEHCI 3.7.5
com.apple.iokit.AppleYukon2 3.1.14b1
com.apple.driver.AirPortBrcm43xx 410.91.20
com.apple.driver.AppleFWOHCI 4.3.4
com.apple.driver.AppleEFINVRAM 1.3.0
com.apple.driver.AppleRTC 1.3
com.apple.driver.AppleUSBUHCI 3.7.5
com.apple.driver.AppleACPIButtons 1.3
com.apple.driver.AppleSMBIOS 1.4
com.apple.driver.AppleACPIEC 1.3
com.apple.driver.AppleAPIC 1.4
com.apple.driver.AppleIntelCPUPowerManagementClient 90.0.0
com.apple.security.sandbox 0
com.apple.security.quarantine 0
com.apple.nke.applicationfirewall 2.0.11
com.apple.driver.AppleIntelCPUPowerManagement 90.0.0
com.apple.driver.AppleHDAPlatformDriver 1.7.4a1
com.apple.driver.AppleHDAHardwareConfigDriver 1.7.4a1
com.apple.driver.DspFuncLib 1.7.4a1
com.apple.driver.AppleProfileReadCounterAction 17
com.apple.iokit.IOFireWireIP 2.0.3
com.apple.driver.AppleProfileTimestampAction 10
com.apple.driver.AppleProfileThreadInfoAction 14
com.apple.driver.AppleProfileRegisterStateAction 10
com.apple.driver.AppleProfileKEventAction 10
com.apple.driver.AppleProfileCallstackAction 20
com.apple.iokit.IOSurface 73.0
com.apple.iokit.IOBluetoothSerialManager 2.2f18
com.apple.iokit.IOSerialFamily 10.0.2
com.apple.iokit.IOAudioFamily 1.7.0fc16
com.apple.kext.OSvKernDSPLib 1.3
com.apple.driver.AppleHDAController 1.7.4a1
com.apple.iokit.IOHDAFamily 1.7.4a1
com.apple.iokit.AppleProfileFamily 40
com.apple.driver.AppleSMC 3.0.1d2
com.apple.driver.IOPlatformPluginFamily 3.4.0a20
com.apple.iokit.IONDRVSupport 2.0
com.apple.kext.ATI2600Controller 6.0.0
com.apple.kext.ATISupport 6.0.0
com.apple.iokit.IOGraphicsFamily 2.0
com.apple.driver.CSRUSBBluetoothHCIController 2.2f18
com.apple.driver.AppleUSBBluetoothHCIController 2.2f18
com.apple.iokit.IOBluetoothFamily 2.2f18
com.apple.driver.AppleUSBHIDMouse 1.3.0f1
com.apple.driver.AppleHIDMouse 1.3.0f1
com.apple.iokit.IOUSBHIDDriver 3.7.5
com.apple.driver.AppleUSBMergeNub 3.7.5
com.apple.driver.AppleUSBComposite 3.7.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.5.0
com.apple.iokit.IOBDStorageFamily 1.6
com.apple.iokit.IODVDStorageFamily 1.6
com.apple.iokit.IOCDStorageFamily 1.6
com.apple.driver.AppleFileSystemDriver 2.0
com.apple.driver.XsanFilter 402.1
com.apple.iokit.IOATAPIProtocolTransport 2.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily 2.5.0
com.apple.iokit.IOUSBUserClient 3.7.5
com.apple.iokit.IOAHCIFamily 2.0.0
com.apple.iokit.IOATAFamily 2.5.0
com.apple.iokit.IO80211Family 300.20
com.apple.iokit.IONetworkingFamily 1.8
com.apple.iokit.IOFireWireFamily 4.1.7
com.apple.driver.AppleEFIRuntime 1.3.0
com.apple.iokit.IOUSBFamily 3.7.8
com.apple.iokit.IOHIDFamily 1.6.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 6
com.apple.driver.DiskImages 281
com.apple.iokit.IOStorageFamily 1.6
com.apple.driver.AppleACPIPlatform 1.3
com.apple.iokit.IOPCIFamily 2.6
com.apple.iokit.IOACPIFamily 1.3.0
Model: iMac7,1, BootROM IM71.007A.B03, 2 processors, Intel Core 2 Duo, 2.8 GHz, 4 GB, SMC 1.21f4
Graphics: ATI Radeon HD 2600 Pro, ATI,RadeonHD2600, PCIe, 256 MB
Memory Module: global_name
AirPort: spairportwireless_card_type_airportextreme (0x14E4, 0x88), Broadcom BCM43xx 1.0 (5.10.91.19)
Bluetooth: Version 2.2.0f18, 2 service, 0 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Network Service: Parallels Shared Networking Adapter, Ethernet, en4
Network Service: Parallels Host-Only Networking Adapter, Ethernet, en5
Serial ATA Device: WDC WD5000AAKS-40YGA0, 465,76 GB
Parallel ATA Device: MATSHITADVD-R UJ-875
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8502, 0xfd400000
USB Device: Keyboard Hub, 0x05ac (Apple Inc.), 0x1005, 0xfd100000
USB Device: Apple Optical USB Mouse, 0x05ac (Apple Inc.), 0x0304, 0xfd130000
USB Device: Apple Keyboard, 0x05ac (Apple Inc.), 0x021e, 0xfd120000
USB Device: Hub, 0x0409 (NEC Corporation), 0x005a, 0xfa400000
USB Device: Cinergy T², 0x0ccd, 0x0038, 0xfa430000
USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0x5d100000
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8206, 0x1a100000

I'm having the same problem with a Black Macbook C2D 2.4Ghz. Installed Snow Leopard over 10.5.8 and whenever the computer sleeps, it completely hangs on wake. I've installed the system twice and the behavior is the same. Tried pulling each of the RAM sticks. No difference. Anybody else?

Can't use mouse/keyboard/trackpad when waking iMac from sleep mode

Basically as the title says. When I wake my iMac from sleep mode I am unable to use my keyboard/trackpad/mouse during the login window. Once the screen goes black by itself, after a minute or so I can then log in properly.
Yes the keyboard/mouse/trackpad are all connected when it wakes from sleep as I can use any of them to wake it from sleep, I just can't move them or type with them in the login window.
Processor 3.4 GHz Intel Core i7
Memory 24 GB 1600 MHz DDR3
Graphics NVIDIA GeForce GTX 680MX 2048 MB
Software OS X 10.8.5 (12F37)

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, or by corruption of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal boot may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin. Test while in safe mode. Same problem? After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

External Monitor Static When Waking From Sleep

Hello community, did anyone had the disrcibed problem and knows about it?
After waking up from hibernation, display is static an doesn't work on; getting of from thunderbolt and put in after a little bit of time doesn't help.

To everyone experiencing the frustrating "static on display when resuming from sleep", I think I finally got the solution to resolve the problem. Since the most recent versions of OSX are using "TV resolution" to configure digital displays (such as 1080p, 720p...) I thought maybe my mac was trying to "talk" with my displays in a "TV language" so I went in my SyncMaster's display setup and changed a few settings to fix the "miscommunication" between my mac and the displays. Surprise! After many months of frustration, it finally fixed the problem!
Here's what I changed in the SyncMaster's setup menu:
Under "SIZE & POSITION" menu, go to "Image Size" and set to "Screen Fit"
Under "SETUP & RESET" menu (down on the second page with my model), go to "Auto Source" and set to "Manual"
Finally,still under the same "SETUP & RESET" menu page, go to "PC/AV Mode" and set to "AV"
Bingo! Now when the computer wakes up from sleep, the screens are going back on like a charm!
Hope this will help people who had the same issue using MacPro with Samsung SyncMaster displays, worked for me anyways!...
Cheers!

Monitor not reacting when waking computer from sleep.

Monitor: HP Pavilion 22bw IPS LED Backlit Monitor
Computer: HP Pavilion Desktop 500-314
Processor: MD A8-7600 Radeon R7, 10 Compute Cores 4C + 6G, 3.10 GHz
RAM: 8 gb
Windows 8.1
System Type: 64-bit operating system, x-64 based processor
Basically when I wake the comp from sleep, the comp itself turns on, but the monitor does not respond at all. I have to force shutdown all the time. When I turn on the computer, the monitor displays picture again.

Hello flashlight365,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that you are having issue with your HP Pavilion 22bw IPS LED Backlit Monitor waking up after being put into sleep mode by your HP Pavilion 500-314 Desktop PC running Windows 8.1. I would like you to ensure that you have the AMD Graphics Driver installed. As well there is no HP Pavilion 22bw IPS LED Backlit Monitor Driver for Windows 8.1, but you can try installing the HP Pavilion 22bw IPS LED Backlit Monitor Driver, which is for Windows 8 in compatibility mode.
As there are no additional drivers for your monitor if the issue persists beyond what I have posted you can try the steps below to turn off the computer putting the monitor to sleep to begin with:
Step 1. At the Tiles Menu type "power"
Step 2. Click on Power and Sleep Settings
Step 3. Select "Never" for both settings
Please re-post if you still require additional support. Thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
I work on behalf of HP
Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

HP2509m monitor flickers when waking up

Recently my HP 2509m monitor has begun flickering when it is coming our of sleep mode. Today it flickered a bit on start up.
1. Product Name and Number - HP 2509m
2. Operating System installed - WIN7
3. Error message - none
4. Any changes made to your system before the issue occurred - none

Hi,
Check the cable connections and make sure that they are tight.
Try a different monitor and cable to separate the monitor and cable from a possible PC issue. Alternatively, try the monitor and cable on a different PC.
Does the monitor behave the same way when it is has warmed up?
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

External monitor flickers when scroll on the google stock chart in Safari

Well, this sounds crazy but this is what is happening to my Retina, 15-inch, Late 2013 Macbook Pro.
I can reproduce it.
1. Go to this page in Safari (Version 7.1 (9537.85.10.17.1)): https://www.google.com/finance?q=LQD&ei=nQQ_VPj1H4ebrAHP6oDYDQ
2. Scroll the page (not the chart)
3. My external monitor starts to flicker.
I use mini display port to DVI to connect to my ASUS VE278.
Any idea? Thanks in advance!

Hi Ziang Song,
Welcome to the Apple Support Community!
I know it can be concerning when your external display is flickering and not functioning as you would expect. In this situation I recommend the troubleshooting steps outlined in the attached article.
Apple computers: Troubleshooting issues with video on internal or external displays
Cheers,
Joe

Occasional reboot when waking MacBook from sleep. iTunes related?

Recently, sometimes when I'm waking my MacBook from sleeping, instead of waking, it reboots. I'd say, one out of twenty times.
It started around the same time I started subscribing to PodCasts. (I'm not using an iPod with them, just downloading them to the MacBook and listening to them through iTunes.)
My iTunes version is 7.0.2.
Any clue as to why this may be happening? Or, more importantly, how to resolve this issue?
MacBook Mac OS X (10.4.8)

Hi, sugapablo.
I wouldn't think your PodCast subscriptions are the cause. However, you could cancel your subscriptions for a few weeks and see if that sorts it out.
Here are some troubleshooting ideas that I think may be more relevant:
1. Have you applied the "MacBook SMC Firmware Update 1.1."? That update fixed a problem with <<a href="http://docs.info.apple.com/article.html?artnum=304308">spontaneous shutdowns — at a guess, your problem may be related.
2. You may want to try some of the troubleshooting steps cited in the following documents:• "http://docs.info.apple.com/article.html?artnum=303234."
• "Mac OS X: Why your Mac might not sleep or stay in sleep mode."
3. Run the Apple Hardware Test (AHT) that came the affected computer. See my "Apple Hardware Test" FAQ for comprehensive advice on using the AHT in troubleshooting.
4. You cited that it reboots. However, if you are seeing the following message
that indicates a kernel panic.
If so, see my "Resolving Kernel Panics" FAQ. This FAQ includes step-by-step instructions for identifying and resolving some of the most common causes of kernel panics. The FAQ is a roadmap: start at the beginning and work systematically through the end, i.e. the "If all else fails..." section.
5. You may want to search the "MacBook Discussion" for similar reports.
6. Since I suspect your MacBook is still under warranty, you may want to contact AppleCare
Good luck!
Dr. Smoke
Author: Troubleshooting Mac® OS X
Note: The information provided in the link(s) above is freely available. However, because I own The X Lab™, a commercial Web site to which some of these links point, the Apple Discussions Terms of Use require I include the following disclosure statement with this post:
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Trouble when waking iMac from sleep?

When I wake my iMac from sleep I get an error message on screen telling me there has been an unexpected shutdown. Any clues as to the solution?

Thanks for the quick replies. When I look in System Diagnostic Reports there is nothing there, plenty in 'all messages. However I did copy the messages sent tp Apple on the last problem which I paste below...
Sun Mar 30 18:12:35 2014
panic(cpu 1 caller 0xffffff800d4dbe2e): Kernel trap at 0xffffff800d450a34, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0x0000000000000008, CR3: 0x00000000207ee000, CR4: 0x0000000000000660
RAX: 0x0000000000000000, RBX: 0xffffff8019921fd8, RCX: 0x0000000000000000, RDX: 0xffffff800dacb940
RSP: 0xffffff808e353a18, RBP: 0xffffff808e353a48, RSI: 0xffffff8019921290, RDI: 0xffffff8010ecb360
R8: 0x0000000000000000, R9: 0x00000000000001d0, R10: 0x00000000000001f0, R11: 0x0000000000000206
R12: 0xffffff8019921298, R13: 0x0000000000000000, R14: 0xffffff8019921290, R15: 0xffffff8010ecb360
RFL: 0x0000000000010246, RIP: 0xffffff800d450a34, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000000000008, Error code: 0x0000000000000002, Fault CPU: 0x1
Backtrace (CPU 1), Frame : Return Address
0xffffff808e3536a0 : 0xffffff800d422fa9
0xffffff808e353720 : 0xffffff800d4dbe2e
0xffffff808e3538f0 : 0xffffff800d4f3326
0xffffff808e353910 : 0xffffff800d450a34
0xffffff808e353a48 : 0xffffff800d45160a
0xffffff808e353b28 : 0xffffff7f8f9cd238
0xffffff808e353b68 : 0xffffff7f8f9ced47
0xffffff808e353bb0 : 0xffffff800d7c4ed0
0xffffff808e353c00 : 0xffffff800d624460
0xffffff808e353cd0 : 0xffffff800d622e48
0xffffff808e353da0 : 0xffffff800d624c1f
0xffffff808e353dd0 : 0xffffff800d7f543b
0xffffff808e353e10 : 0xffffff800d7bf0a3
0xffffff808e353e40 : 0xffffff800d7f09e6
0xffffff808e353f50 : 0xffffff800d83e363
0xffffff808e353fb0 : 0xffffff800d4f3b26
      Kernel Extensions in backtrace:
com.intego.virusbarrier.kext.realtime(775.0)[16F2B151-9311-3DF1-8148-99CBEFAC07 FB]@0xffffff7f8f9cc000->0xffffff7f8f9d2fff
BSD process name corresponding to current thread: configd
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: 0x000000000d200000
Kernel text base: 0xffffff800d400000
System model name: iMac11,3 (Mac-F2238BAE)
System uptime in nanoseconds: 33037812554
last loaded kext at 31385312477: com.apple.driver.AppleBluetoothHIDKeyboard     170.15 (addr 0xffffff7f8ed05000, size 24576)
last unloaded kext at 30552612340: com.intego.netbarrier.kext.network      653 (addr 0xffffff7f8f9cc000, size 36864)
loaded kexts:
com.intego.virusbarrier.kext.realtime           775
com.intego.netbarrier.kext.process                 653
com.intego.netbarrier.kext.monitor                653
com.apple.driver.AudioAUUC          1.60
com.apple.driver.AppleHWSensor                 1.9.5d0
com.apple.driver.AGPM    100.14.15
com.apple.driver.AppleTyMCEDriver          1.0.2d2
com.apple.filesystems.autofs            3.0
com.apple.driver.AppleBluetoothMultitouch             80.14
com.apple.iokit.IOBluetoothSerialManager                 4.2.3f10
com.apple.driver.AppleMikeyHIDDriver    124
com.apple.driver.AppleMikeyDriver             2.6.0f1
com.apple.driver.AppleHDAHardwareConfigDriver                2.6.0f1
com.apple.driver.AppleHDA            2.6.0f1
com.apple.iokit.IOUserEthernet     1.0.0d1
com.apple.iokit.IOBluetoothUSBDFU             4.2.3f10
com.apple.driver.AppleMuxControl              3.4.35
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport       4.2.3f10
com.apple.Dont_Steal_Mac_OS_X   7.0.0
com.apple.driver.AppleBacklight 170.3.5
com.apple.driver.AppleLPC             1.7.0
com.apple.driver.AppleHWAccess                  1
com.apple.driver.AppleUpstreamUserClient               3.5.13
com.apple.driver.AppleMCCSControl           1.1.12
com.apple.kext.AMDFramebuffer 1.2.0
com.apple.driver.ACPI_SMC_PlatformPlugin              1.0.0
com.apple.AMDRadeonX3000       1.2.0
com.apple.kext.AMD5000Controller             1.2.0
com.apple.driver.AppleIntelMCEReporter                   104
com.apple.driver.AppleIRController             325.7
com.apple.driver.AppleUSBCardReader     3.4.1
com.apple.driver.AppleFileSystemDriver   3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless                 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib         1.0.0d1
com.apple.BootCache         35
com.apple.iokit.SCSITaskUserClient               3.6.6
com.apple.driver.XsanFilter             404
com.apple.iokit.IOAHCIBlockStorage             2.5.1
com.apple.driver.AppleUSBHub    666.4.0
com.apple.iokit.AppleBCM5701Ethernet   3.8.1b2
com.apple.driver.AppleFWOHCI   4.9.9
com.apple.driver.AppleAHCIPort 3.0.0
com.apple.driver.AirPort.Atheros40              700.74.5
com.apple.driver.AppleUSBUHCI 656.4.1
com.apple.driver.AppleUSBEHCI 660.4.0
com.apple.driver.AppleRTC             2.0
com.apple.driver.AppleACPIButtons             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.driver.AppleIntelCPUPowerManagementClient 216.0.0
com.apple.nke.applicationfirewall                 153
com.apple.security.quarantine       3
com.apple.driver.AppleIntelCPUPowerManagement               216.0.0
com.apple.driver.AppleBluetoothHIDKeyboard        170.15
com.apple.driver.AppleHIDKeyboard           170.15
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.IOAudioFamily      1.9.5fc2
com.apple.kext.OSvKernDSPLib     1.14
com.apple.iokit.IOSurface                  91
com.apple.iokit.IOBluetoothFamily                4.2.3f10
com.apple.driver.AppleGraphicsControl     3.4.35
com.apple.iokit.IOBluetoothHostControllerUSBTransport     4.2.3f10
com.apple.driver.AppleBacklightExpert     1.0.4
com.apple.driver.AppleSMBusPCI                  1.0.12d1
com.apple.iokit.IOFireWireIP          2.2.6
com.apple.driver.AppleHDAController        2.6.0f1
com.apple.iokit.IOHDAFamily         2.6.0f1
com.apple.driver.AppleSMBusController   1.0.11d1
com.apple.driver.AppleSMC            3.1.8
com.apple.driver.IOPlatformPluginLegacy                  1.0.0
com.apple.driver.IOPlatformPluginFamily                  5.7.0d10
com.apple.iokit.IONDRVSupport   2.4.1
com.apple.iokit.IOAcceleratorFamily             98.14
com.apple.kext.AMDSupport           1.2.0
com.apple.AppleGraphicsDeviceControl     3.4.35
com.apple.iokit.IOGraphicsFamily                  2.4.1
com.apple.iokit.IOUSBHIDDriver   660.4.0
com.apple.iokit.IOSCSIBlockCommandsDevice          3.6.6
com.apple.iokit.IOUSBMassStorageClass      3.6.0
com.apple.driver.AppleUSBMergeNub         650.4.0
com.apple.driver.AppleUSBComposite         656.4.1
com.apple.iokit.IOSCSIMultimediaCommandsDevice               3.6.6
com.apple.iokit.IOBDStorageFamily               1.7
com.apple.iokit.IODVDStorageFamily           1.7.1
com.apple.iokit.IOCDStorageFamily               1.7.1
com.apple.iokit.IOAHCISerialATAPI               2.6.1
com.apple.iokit.IOSCSIArchitectureModelFamily      3.6.6
com.apple.iokit.IOUSBUserClient   660.4.2
com.apple.iokit.IOEthernetAVBController 1.0.3b4
com.apple.driver.mDNSOffloadUserClient                   1.0.1b5
com.apple.iokit.IOFireWireFamily                  4.5.5
com.apple.iokit.IOAHCIFamily        2.6.5
com.apple.iokit.IO80211Family    630.35
com.apple.iokit.IONetworkingFamily            3.2
com.apple.iokit.IOUSBFamily           675.4.0
com.apple.driver.AppleEFINVRAM                2.0
com.apple.driver.AppleEFIRuntime              2.0
com.apple.iokit.IOHIDFamily           2.0.0
com.apple.iokit.IOSMBusFamily     1.1
com.apple.security.sandbox             278.11
com.apple.kext.AppleMatch             1.0.0d1
com.apple.security.TMSafetyNet    7
com.apple.driver.AppleKeyStore   2
com.apple.driver.DiskImages          371.1
com.apple.iokit.IOStorageFamily   1.9
com.apple.iokit.IOReportFamily     23
com.apple.driver.AppleFDEKeyStore            28.30
com.apple.driver.AppleACPIPlatform           2.0
com.apple.iokit.IOPCIFamily            2.9
com.apple.iokit.IOACPIFamily         1.4
com.apple.kec.corecrypto                   1.0
com.apple.kec.pthread      1
Model: iMac11,3, BootROM IM112.0057.B01, 4 processors, Intel Core i5, 2.8 GHz, 4 GB, SMC 1.59f2
Graphics: ATI Radeon HD 5750, ATI Radeon HD 5750, PCIe, 1024 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54313235533654465238432D48392020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54313235533654465238432D48392020
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.74.0-P2P
Bluetooth: Version 4.2.3f10 13477, 3 services, 23 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: ST31000528AS, 1 TB
Serial ATA Device: HL-DT-STDVDRW GA32N
USB Device: Hub
USB Device: HP LaserJet M1005
USB Device: Built-in iSight
USB Device: IR Receiver
USB Device: Hub
USB Device: BRCM2046 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Internal Memory Card Reader
Thunderbolt Bus:

Kernel panic when waking PowerBook from sleep on a new network

I occasionally take my PowerBook from home to work, and lately there have been several instances of my PB having a kernel panic when I plug in the ethernet cable and wake it from sleep. I have not tested this extensively, but it seems to occur under the following conditions:
1. PB is disconnected from network location 1, and the lid is closed so that it goes to sleep.
2. PB is moved to network location 2, the ethernet cable at that location is plugged in, and then the computer lid is opened, causing the computer to awake from sleep.
3. The computer has a kernel panic immediately on awaking.
I believe, but am not absolutely positive, that this does not occur if I awake the computer first, and then plug in the ethernet cable. Unfortunately that order of doing things is counter-intuitive to me, as I tend to want to plug everything in before waking the computer up.
Possibly a factor: At my home location I have a manually assigned IP address and other location-specific settings, whereas at work I change the network settings to fully automatic once the computer starts up.

Hello DistantThunder
In most cases kernel panics are a result of a hardware error on some cases a software error.
I would suggest you look at an excellent procedure for resolving these issues on Dr Smoke's website.
http://www.thexlab.com/faqs/kernelpanics.html

External monitor flickers when waking up from sleep

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