Screen flicker and crashes.

My iMac had never crashed in the year that I have had it up till about a week ago. Now three times, my computer has become unresponsive, with the screen flickering. I have had to hold my power button to use it again.
I have reset the SMC, PRAM and run RAM, Graphics tests and SMART test. All passed brilliantly, the only concerned being a slightly slower spin up time, but nothing serious.
I am running 10.6.6, on Late 2009 21.5inch iMac, 3.06Ghz Dual-Core, 4GB RAM.
Thanks.

One good generic troubleshooting step for this is to run Applejack.
Download:
http://sourceforge.net/projects/applejack/
Article on using:
http://reviews.cnet.com/8301-13727_7-10334620-263.html?tag=mfiredir
It runs in single user mode. After installing (you won't see it in the Applications Folder) hold CMD-S at startup. You will get a black screen with MS-DOS like text. Just follow the prompts: type in "applejack AUTO" and it will run through the following:
Correct any Disk problems.
Repair Permissions.
Clear out Cache Files.
Repair/check several plist files.
Dump the VM files for a fresh start.
Trash old Log files.
You can also run tasks selectively and for specific users by typing in "applejack."
The first reboot will take much longer than usual, as it rebuilds caches. It may take several restarts to see the benefits. Because of the deep cache cleaning in AUTO mode some applications may tell you they are being opened for the first time.
I would also run the Hardware Test in extended. Disconnect all peripherals except the Keyboard and Mouse
http://support.apple.com/kb/ht1509
On your Mac, you can get to the Hardware Test simply by restarting holding down the D key.

Similar Messages

How do I get rid of random screen flicker and black screen when using a late 2013 Mac Pro with a 4k Samsung 55" Display?

I have a new Mac Pro late 2013 and a 55" 4k Samsung display connected using an HDMI cable. For the most part the display is amazing, however, I get occasional screen flicker and black outs. Can anyone help? Could I possibly have a bad video card?

4K displays take more than half the bandwidth of a ThunderBolt Bus. So you may get better results if you are careful to place them on their own Bus. This article has the explanation of which port is using which Bus:
Mac Pro (Late 2013): Using multiple displays

Screen Flicker + Youtube crash post ICS

Hi Sony,
Since the ICS update I have been experiencing extreme flickering on almost all screens. It is especially severe when opening the recent apps menu and on you tube app top-nav.
Also, the youtube app crashes as soon as I try to skip a video forward or backward. It just jarrs and then it will not allow you to un-pause, but the video will start playing even when it's paused and then it crashes in a couple of seconds. This happens with almost 100% probability.
In addition to that, I have also experienced crashing in other apps, such as Skype, Netflix, Chrome etc.
These issues (specially the flickering and crashing) make the tablet feel so useless that I have started using my laptop again at home (after enjoying months of laptop free evenings with the tablet!!)
Please do something about these issues. I know people are reporting these as google code bugs on some sites, but this is a Sony tablet. I believe it is Sony's responsibility to make it work. Not all other manufacturers are reporting these issues on their ICS devices.
I look forward to a fix for these issues soon.
PS: Here is an example of the screen flickering issue http://www.youtube.com/watch?v=H4cNDjYyTis
Thanks
Nish

I'm able to reproduce the flicker / video distortion issue. We're working internally to understand the root cause of this issue. I'm sorry for your experience with this. Please allow us some time to root cause this issue and also provide a solution.
Thanks again for bringing this issue to our attention.
Sony Community Manager
Sr. Software Engineer
Peter Tat

Screen distortion and crashes

I get a lot of screen distortion, and my iMac completely freezes or crashes. I get a video ram failure message when I run Techtool.
I've tried reinstalling the system, but it's still happening.
I had the logic board replaced while it was under warrantee, but I'm afraid it may need replacing again (pretty expensive even to do it myself).
Any thoughts???

One good generic troubleshooting step for this is to run Applejack.
Download:
http://sourceforge.net/projects/applejack/
Article on using:
http://reviews.cnet.com/8301-13727_7-10334620-263.html?tag=mfiredir
It runs in single user mode. After installing (you won't see it in the Applications Folder) hold CMD-S at startup. You will get a black screen with MS-DOS like text. Just follow the prompts: type in "applejack AUTO" and it will run through the following:
Correct any Disk problems.
Repair Permissions.
Clear out Cache Files.
Repair/check several plist files.
Dump the VM files for a fresh start.
Trash old Log files.
You can also run tasks selectively and for specific users by typing in "applejack."
The first reboot will take much longer than usual, as it rebuilds caches. It may take several restarts to see the benefits. Because of the deep cache cleaning in AUTO mode some applications may tell you they are being opened for the first time.
I would also run the Hardware Test in extended. Disconnect all peripherals except the Keyboard and Mouse
http://support.apple.com/kb/ht1509
On your Mac, you can get to the Hardware Test simply by restarting holding down the D key.

Gateway DX4840 is Experiencing Screen Freezing and Crashing

I am running Windows 7. This problem started about three weeks ago. Occasionally the screen freezes and nothing will unfreeze it except a cold boot. Control-Alt-Delete does nothing. Sometimes the screen goes black. At other times the screen shows
an odd multicolour pattern. Occasionally the computer crashes altogether.
I can not seem to find any hardware problem. Sometimes the computer will run for several days with no difficulty. There is no sign of a virus. I have checked my C drive for problems and found nothing.
I normally run Chrome and sometimes Chrome and Explorer at the same time. Has anybody experienced this problem.
Thanks very much.

Hi,
Firstly, please check the issue with the method below:
Windows hangs or freezes
http://support.microsoft.com/kb/2681286
Meanwhile, I think you need also to check the hardware side; please ensure all the drivers are up-to-date and you can also contact Gateway support for help.
Thanks.
Nicholas Li
TechNet Community Support

Screen Flicker and Glitch on 24" iMac, Early 2009

For a while now, my iMac has been having somewhat random display glitches, flickers, freezes, and kernel panics that can only be fixed by shutting down the computer.
Most of these screen glitches go like this: The display flickers black quickly, letting me know that an issue is going to arise. The issues that could happen are as follows:
A blue line glitch (very common)
a random artifact glitch (somewhat uncommon)
a freeze-up (very common)
a kernel panic
Let me describe these:
There are several types of "display glitches" I've been experiencing. Some of them involve random artifacts that are randomly displayed and seem to be hovering over whatever is going on on the screen–for example, once I was browsing Facebook and the glitch occurred, so a square of my browser screen was sort of cut out and stuck on the screen above everything else going on. The issue wasn't fixed until I restarted the computer. This glitch, however, wouldn't show up in screenshots. These are somewhat less common because it seems if this one happens then it either gets worse very fast and there are random pieces of my active windows all over the screen or it freezes the computer up entirely, or even results in a kernel panic.
Another "display glitch" that is far more common is a sort of line glitch. It's very strange: blue lines will outline random shapes and things all over the screen. Pictures on my browser appear distorted and videos look VERY weird. The dock has the lines and random blue pixels as well. The desktop background appears distorted. This glitch often starts with the screen flickering black and the various blue lines appearing. The lines change shape as the objects on the screen move around.The issue doesn't appear in screenshots but I documented it by taking crude videos and pictures on my phone that give examples.
Here's a link to my video of a video about a nonrelated screen glitch. I was actually searching Google for a solution but it turned out to be unhelpful, but since the screen glitch happened to be going on I decided to record it as an example. Notice how the blue lines move with the video...
Here are some pictures:
This next screenshot looks a little creepy with the armored polar bear–it's a LoL build on Mobafire. CLICK HERE TO SEE WHAT IT'S SUPPOSED TO LOOK LIKE:
---NOTE: My computer actually JUST screen glitched and froze up completely, at which point I had to shut it down and reboot. Luckily the post was saved! Just in case you were wondering how often these things occur.
This issue is getting worse and worse. I'm not sure what triggers it, but it seems like graphics-intensive programs like 3D games can trigger it–especially, it seems, when I toggle on and off fullscreen. It looks like it could be a graphics card issue, because if it was a software problem it would seem like it should show up in the screenshots. It's sort of an underwhelming graphics card, but meh. My mom is having a panic attack and backing up everything on the computer and we're thinking about just reinstalling OS X altogether.
Here's some general info about the computer:
General info:
Model Name: iMac
Model Identifier: iMac9,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.93 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Graphics and Displays:
Chipset Model:          NVIDIA GeForce GT 120
Type:          GPU
Bus:          PCIe
PCIe Lane Width:          x16
VRAM (Total):          256 MB
Vendor:          NVIDIA (0x10de)
Device ID:          0x0655
Revision ID:          0x00a1
ROM Revision:          3370
Displays:
iMac:
Resolution:          1920 x 1200
Pixel Depth:          32-Bit Color (ARGB8888)
Main Display:          Yes
Mirror:          Off
Online:          Yes
Built-In:          Yes
Any help would be appreciated. I've looked for solutions for quite some time, but none of the problems people seem to be experiencing match my issue. Thanks!

Lion causes your system to use more resources so it will run hotter. If you haven't cleaned you iMac's dust out:
As old as your iMac is, have you cleaned out the dust? Dust buildup can lead to over heating issues. Remove any and all things plugged into it including the power cord, Remove the RAM access grille. Vacuum all openings starting with the RAM access area (air intake). Vacuum all ports and plugs, DVD slot and the opening across the top of the rear of the body. Blow compressed air through all your openings and vacuum again to remove any dust you loosend. Reinstall the RAM grille. Plug in the keyboard and mouse if not blue tooth. Insert power cord...
You are now in a perfect position to do a
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
Here is a Widget to monitor your temps and other operations:
http://islayer.com/apps/istatpro/

When I move my mac the screen flicker and must be rebooted

when I move my mac the screen flickers and goes blank then must be rebooted. Crap

Hi , and a warm welcome to the forums!
Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.
If 10.7.0 or later...
Bootup holding CMD+r, or the Option/alt key to boot from the Restore partition & use Disk Utility from there to Repair the Disk, then Repair Permissions.
And sorry to report that OSX is more Widows like than ever, but….
If that doesn't help Reinstall the OS.

X300 partial screen flicker and solid colored lines

Hello all. Just opened my X300 tonight to find the lower-left quadrant of the screen flickering and some colored lines in the upper left-quadrant. The right half of the screen is viewable but pixelated. Anyone know if this is fixable? Loose cables, inverter?
thanks.
Solved!
Go to Solution.

mmster55 wrote:
Good point. I fiddled with my friends laptop after I was convinced I could fix his Dell screen. Its still sitting in my room 2 years later. Thanks for the info.
i am in the same boat with my T30, T40, T42.... i decided to pull them apart and have yet to put them back again, i think i have lost some of the screws too.....
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

Screen flicker and delay in texmaker (possible problem w\ qt5-webkit)

Long time reader, first time poster. Never needed to post a problem before because of the amazing amount of assistance already offered here.
I have a minor problem (annoying but could live with it), and so far, I can't find anything on it. Moreover, I really don't know what error logs to consult about it or how to go about finding the source of the problem. So, I apologize in advance for the lack of information on the problem, but part of my question is what to look for.
Had a machine that was a bit behind on updates (about a year), went through all the news posts, updated as required, everything went fine, and everything is still working. There are two applications, though, that seem a bit buggy: texmaker and calibre. Whenever I open either up, it takes quite a bit longer than it did prior to the update, and my screen starts to flicker a fair bit. Eventually, both open up and run just fine, but the delay and screen flickering troubles me. I don't use calibre often, but I use texmaker all the time. So, I would like to see if there is anything I can do to sort this out.
I checked the general logs from journalctl and dmesg to see if there were any errors, and there wasn't anything. I also checked the xorg log to see if there were any errors there, and again, nothing. The only dependency the two programs have in common is qt5-webkit, and that was installed with the last update.
Could anyone recommend a way to figure out if that is the source of the problem or find more information about why it is happening?
Thanks in advance, and if I have violated any of the norms of posting, feel free to reprimand me firmly but gently; it is my first time after all.

yesterday crashes (mar 26)were all signed Torchupdater
so I uninstalled Torch
Today's crash (mar 27)was signed window server
Cant uninstall finder....

Screen flicker and trackpad issues on macbook pro 8 2

Hi I have a macbook pro (8,2) 15 inch with a high rez anti glare display. The display stared to flicker after living my computer open in arch for about 30 min. I tried rebooting and it even started happening in the boot screen and in mac os x. The last thing I did before it happened was setup pommed in arch and leve my computer open.
Also this has sort of been asked but my question is a little different. I am trying to set up my multitouch trackpad. I installed mtrack from the aur but changing the settings does nothing. What I want to accomplish is this. 1) I want to right click by clicking (not tapping) with one finger in the button right corner of my trackpad. 2) I need to disable tap to click!!!! 3) I want to be able to click the trackpad with my thump and use my index finger to drag instead of only my thumb. for example I want to click on a window border with my thumb and move it around with my index finger while holding down my thumb.
Any help would be greatly appreciated!

Glad you figured it out. Sorry to see no one else chimed in.
I have arch on a macbook as well. I have never seen a need for the many elaborate packages which claim to make these things work. If they're working then stick with it - but if you need another option, I've had great luck with simply properly configuring synaptics:
https://wiki.archlinux.org/index.php/Touchpad_Synaptics

HP Pavilion Elite m9065uk - Pink Screen Freeze and crash

Hi,
Hopefully someone here can help me. I have a HP Pavilion m9065uk Desktop and I am having problems and I was wondering if anyone could point me in the right direction.
Over the last month or so I have been having a problem with it the PC crashing, at first it started when booting up, it would get as far as the Microsoft loading bar then just a black screen and nothing. I would reboot and it would boot up fine, but then started freezing with a pink screen, then after a few minutes either go to black screen or nothing happening at all. Sometimes it starts to restart up then fails to start and startup repair comes up but sometimes fails. I changed the power supply back in March, but I dont believe if this has anything to do with it, the supply is the same as the original.
I googled the boards and it was suggested that the nvidia graphics card might be the problem. so reinstalled the drivers and then tried updating the drivers and its still the same problem. The reason I say i suspect the graphics card is that sometimes when the problem originally began I would get an error message saying that "display driver failed and recovered".
Is this a problem with the NVIDIA GeForce 8500 GT card? There is no Integrated graphics card on the PC when a graphics card is installed.
The PC will work for a day or 2 then the same pink screen crash occurs, now all of a sudden it wont boot up, keeps going to launch startup repair, which does not work. I can boot up to safe mode only.
Hopefully someone would be able to point me in the right direction. I dont want to have to go changing the motherboard or worse still pay for a new PC.
Any help would be greatly appreciated.
Thanks, O

Hi,
Is this HP PC the same as yours? It might be the video card or a weak power supply. Try reseating the video card and see if that makes a difference. Take a can of compress air and blow out all of the dust from CPU heat sink and the fan on the video card. See if that makes a difference.
You could try removing the video card and connect the monitor using a VGA cable to the integrated video port on the back of your PC. Hopefully your monitor has a VGA port and you have a VGA cable. The integrated video adapter is Intel so you will have to update the video driver. Look here for the update.
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

U520 screen flicker and random curoror movment

I have a new Lenovo U530. Periodically there is a light gray circle that appears on the bottom right portion of the scroll bar. When this appears my cursor pointer seems to randomly move. This happens more often when I'm surfing the internet. When I'm on a webpage the font size randomly changes and the cursor moves. When I get to the main Windows 8.1 screen it rapidly shutters and the screen size changes very rapidly from very small to very large.
This is super annoying and the only way to stop it is to reboot. What is causing this?
Please help.

Lion causes your system to use more resources so it will run hotter. If you haven't cleaned you iMac's dust out:
As old as your iMac is, have you cleaned out the dust? Dust buildup can lead to over heating issues. Remove any and all things plugged into it including the power cord, Remove the RAM access grille. Vacuum all openings starting with the RAM access area (air intake). Vacuum all ports and plugs, DVD slot and the opening across the top of the rear of the body. Blow compressed air through all your openings and vacuum again to remove any dust you loosend. Reinstall the RAM grille. Plug in the keyboard and mouse if not blue tooth. Insert power cord...
You are now in a perfect position to do a
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
Here is a Widget to monitor your temps and other operations:
http://islayer.com/apps/istatpro/

MSI GS60-2PC Screen flicker and horizontal black lines issue

After about 2 weeks of using my GS60, I began to notice that the screen sometimes flickered, and on other occasions horizontal black lines would appear. I have updated my GTX driver to the latest version, and I haven't been able to find any help on the net. Does anyone know how to fix this issue?

Hi!!! I'm Manuel from Argentina. I bought a MSI GS60 in miami 5 months ago, and... I HAVE THE SAME PROBLEM!! sometimes mi screen is flashing and appeared horizontal lines (blacks).
There's no solution for this problem? it's a very expensive laptop.
I hope someone can help.
greetings from Argentina!!

Welcome Screen Hangs and Crashes

The basic issue: Dreamweaver/Flash hangs indefinitely at the
welcome screen after being opened and cannot be used/ must be
forced quit. I can’t click anything and certainly can use the
program.
My System:
Intel Mac Pro
Two 2.66 Ghz Intel Processors
2 GB Ram
ATI X1900 Card with 512 MB Memory
Internet Connection
Operating System: Mac OSX 10.4.9
How to produce the problem:
1. Ensure internet connection is enabled.
2. Open Dreamweaver
Results: Upon opening, Dreamweaver/Flash hangs indefinitely
at the welcome screen. All menus and tool bars load, but the
welcome screen displays a blank box at which point the cursor
spins, the program freezes and must be forced quit.
Normally the welcome screen should load quickly and display
the various document options as well as a link to adobe. (Assuming
an internet connection is available. If not, a static graphic
should be displayed in the lower right corner.) After extensive
trouble shooting I narrowed the problem down to the internet
connection. Without an internet connection (Ethernet cable
unplugged) the welcome screen loaded promptly and didn’t hang
however the link normally provided in the lower right hand corner
was missing since there was no internet available. The program then
ran normally.
When the internet was connected, the program would load up to
the welcome screen and then hang without displaying any options. No
menus were available and nothing could be done in the program. The
only solution at this point was to force quit.
I spoke with a tech support agent and worked through the
majority of the steps outlined here (
http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=kb401096)
to no avail. As far as I can tell, the issue is caused by the
welcome screen failing to access the internet content necessary to
load. I was able to disable the welcome screen by disconnecting the
internet, opening Dreamweaver/Flash, disabling it via the options,
and then reconnecting the internet. However, this of course
prevents the use of the welcome screen, a feature I find useful.
Notes: The welcome screen for Illustrator and InDesign load
flawlessly and quickly and are not affected by the internet
connection.
Has anyone else experienced this? Adobe’s tech agent
told me it might be an issue with my internet, but I doubt that is
the case. I have submitted a bug report to adobe, but was curious
if anyone else had found a solution or had any idea why this is
happening. Why can Illustrator and InDesign load the web links and
not Flash and Dreamweaver.
I know the welcome screen is hardly a “necessary”
feature, but considering the price one pays for this software, it
would be nice if it worked.

It's not a great workaround at all. In fact, I am still
trying to find a better and more feasible solution since we have a
few computers on the home network and connecting directly to the
internet prevents any of those machines from using the web since
you loose the router.
I called the apple store and they said they use Airport
Extremes and do not have any issues with the welcome pages on their
machines. Unfortunately, I purchased an airport extreme
(haven’t set it up yet) hoping it would work, but it sounds
like you are having the same issue. I agree that adobe should
acknowledge the problem and I too have run into the limited scope
of the tech support. As you said, they provide support based on the
specific applications and don’t seem to address cross suite
issues. I am still waiting on a call from a Level 2 tech who will
hopefully be more helpful and move beyond the basic steps.
(Trashing pref files etc.)
It's very odd the older router works, but my guess is some of
the newer security features are causing the issue. I placed my
computer in the DMZ, which seemed to work, but the welcome screens
took a good 5-10 seconds to load and the program would hang during
that time.
Out of curiousity, who is your Internet Provider? I am using
Verizon FioS.

Fall 2013 Macbook Pro Retina screen freezing and crashing

Hello,
lately, I have been experiencing some screen freezes on my Macbook Pro Retina 15''... The screen just freezes, including the mouse pointer and then it doesn't respond to anything. I just have to restart the machine again. This happens sometimes and not every day, but still a few times a week. I just do normal things on my mac while I get this problem.
Also, just recently almost an hour ago, my screen just turned all white and it said "Your computer restarted because of a problem. Press any key to continue or a wait a couple minutes for it to reboot." This time, I was watching a movie when it happened.
I have also verified the disk in disk utility, but no errors.
What may be causing this issue? Hardware? Software? I also have applecare, but I'm eager to find out what's the problem before I hand it to the apple store.
Thank you very much!
This is the kernel panic log:
Sun Mar 30 04:45:42 2014
panic(cpu 0 caller 0xffffff8011adbe2e): Kernel trap at 0xffffff8011aa3319, type 13=general protection, registers:
CR0: 0x0000000080010033, CR2: 0x00007fff7bee0000, CR3: 0x0000000065fc904e, CR4: 0x00000000001606e0
RAX: 0x0000000000000001, RBX: 0xff000000ff000000, RCX: 0xffffff8035100450, RDX: 0x0000000000000821
RSP: 0xffffff81e5a63d20, RBP: 0xffffff81e5a63d50, RSI: 0x0000000026a74e9c, RDI: 0xffffff80184f9800
R8: 0x0000000000000000, R9: 0xffffff81e5a63ed0, R10: 0x00007fff5650aee0, R11: 0x00000000ffffffe5
R12: 0xffffff80184f9800, R13: 0xffffff80164be000, R14: 0x00000000000e0000, R15: 0xffffff80449d7f40
RFL: 0x0000000000010286, RIP: 0xffffff8011aa3319, CS: 0x0000000000000008, SS: 0x0000000000000000
Fault CR2: 0x00007fff7bee0000, Error code: 0x0000000000000000, Fault CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff81d3e5bc50 : 0xffffff8011a22fa9
0xffffff81d3e5bcd0 : 0xffffff8011adbe2e
0xffffff81d3e5bea0 : 0xffffff8011af3326
0xffffff81d3e5bec0 : 0xffffff8011aa3319
0xffffff81e5a63d50 : 0xffffff8011a7804e
0xffffff81e5a63f20 : 0xffffff8011adc26c
0xffffff81e5a63fb0 : 0xffffff8011af322b
BSD process name corresponding to current thread: launchdadd
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:
0x0000000011800000
Kernel text base: 0xffffff8011a00000
System model name: MacBookPro11,3 (Mac-2BD1B31983FE1663)
System uptime in nanoseconds: 24365483293442
last loaded kext at 17612576328462: com.apple.driver.AppleIntelMCEReporter
104 (addr 0xffffff7f9414b000, size 49152)
last unloaded kext at 17672593992681: com.apple.driver.AppleIntelMCEReporter
104 (addr 0xffffff7f9414b000, size 32768)
loaded kexts:
com.Cycling74.driver.Soundflower
1.5.3
com.apple.filesystems.smbfs
2.0.1
com.apple.driver.AppleHWSensor
1.9.5d0
com.apple.filesystems.autofs
3.0
com.apple.driver.X86PlatformShim
1.0.0
com.apple.driver.AGPM
100.14.15
com.apple.driver.ApplePlatformEnabler
2.0.9d1
com.apple.iokit.IOBluetoothSerialManager
4.2.3f10
com.apple.driver.AppleHDA
2.6.0f1
com.apple.GeForce
8.2.4
com.apple.driver.AppleUpstreamUserClient
3.5.13
com.apple.driver.AudioAUUC
1.60
com.apple.driver.AppleIntelHD5000Graphics
8.2.4
com.apple.driver.AppleCameraInterface
4.26.0
com.apple.iokit.IOUserEthernet
1.0.0d1
com.apple.Dont_Steal_Mac_OS_X
7.0.0
com.apple.driver.AppleHWAccess
1
com.apple.driver.AppleThunderboltIP
1.1.2
com.apple.driver.AppleLPC
1.7.0
com.apple.driver.AppleSMCLMU
2.0.4d1
com.apple.driver.AppleIntelFramebufferAzul
8.2.4
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport
4.2.3f10
com.apple.driver.AppleMuxControl
3.4.35
com.apple.driver.AppleMCCSControl
1.1.12
com.apple.driver.AppleUSBTCButtons
240.2
com.apple.driver.AppleUSBTCKeyboard
240.2
com.apple.driver.AppleUSBCardReader
3.4.1
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.AppleAHCIPort
3.0.0
com.apple.driver.AirPort.Brcm4360
831.21.63
com.apple.driver.AppleUSBXHCI
670.4.0
com.apple.driver.AppleSmartBatteryManager
161.0.0
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.nke.applicationfirewall
153
com.apple.security.quarantine
3
com.apple.kext.triggers
1.0
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.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.AppleHDAController
2.6.0f1
com.apple.iokit.IOHDAFamily
2.6.0f1
com.apple.nvidia.driver.NVDAGK100Hal
8.2.4
com.apple.nvidia.driver.NVDAResman
8.2.4
com.apple.AppleGraphicsDeviceControl
3.4.35
com.apple.iokit.IOAcceleratorFamily2
98.14
com.apple.iokit.IOBluetoothHostControllerUSBTransport
4.2.3f10
com.apple.driver.X86PlatformPlugin
1.0.0
com.apple.driver.AppleSMC
3.1.8
com.apple.driver.IOPlatformPluginFamily
5.7.0d10
com.apple.driver.AppleGraphicsControl
3.4.35
com.apple.driver.AppleBacklightExpert
1.0.4
com.apple.iokit.IONDRVSupport
2.4.1
com.apple.driver.AppleSMBusController
1.0.11d1
com.apple.iokit.IOGraphicsFamily
2.4.1
com.apple.driver.AppleUSBMultitouch
240.9
com.apple.iokit.IOSCSIBlockCommandsDevice
3.6.6
com.apple.iokit.IOUSBMassStorageClass
3.6.0
com.apple.iokit.IOSCSIArchitectureModelFamily
3.6.6
com.apple.driver.AppleUSBMergeNub
650.4.0
com.apple.iokit.IOUSBHIDDriver
660.4.0
com.apple.driver.AppleUSBComposite
656.4.1
com.apple.driver.AppleThunderboltDPInAdapter
3.1.7
com.apple.driver.AppleThunderboltDPAdapterFamily
3.1.7
com.apple.driver.AppleThunderboltPCIDownAdapter
1.4.5
com.apple.iokit.IOUSBUserClient
660.4.2
com.apple.iokit.IOAHCIFamily
2.6.5
com.apple.driver.AppleThunderboltNHI
2.0.1
com.apple.iokit.IOThunderboltFamily
3.2.7
com.apple.iokit.IO80211Family
630.35
com.apple.driver.mDNSOffloadUserClient
1.0.1b5
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.pthread
1
com.apple.kec.corecrypto
1.0
System Profile:
Model: MacBookPro11,3, BootROM MBP112.0138.B02, 4 processors, Intel Core i7, 2.6 GHz, 16 GB, SMC 2.19f3
Graphics: Intel Iris Pro, Intel Iris Pro, Built-In, 1024 MB
Graphics: NVIDIA GeForce GT 750M, NVIDIA GeForce GT 750M, PCIe, 2048 MB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x000000000000000000000000000000000000
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x000000000000000000000000000000000000
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x134), Broadcom BCM43xx 1.0 (6.30.223.154.63)
Bluetooth: Version 4.2.3f10 13477, 3 services, 15 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SM0512F, 500,28 GB
USB Device: Internal Memory Card Reader
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Apple Internal Keyboard / Trackpad
Thunderbolt Bus: MacBook Pro, Apple Inc., 17.1

Looks like a RAM issue.
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x000000000000000000000000000000000000
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x000000000000000000000000000000000000

Screen flicker and crashes.

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