IMac :: Random Artifacts / Glitches On The Screen?
Sep 15, 2010
I've had my 27" iMac (3.06GHz) for a few weeks now and yesterday I noticed some weird artifacts appearing on the screen, very randomly.
They will pop up all over the screen but if I "Show desktop", they will go away for a bit but sometimes reappear again in different areas of the screen. I restarted the computer but that only temporarily fixed the problem.
Anyone know what's causing this and how to fix it?
Have OS X 10.5.6 on an new Intel IMac 24. When I use Google Earth or run X-Plane I see these random polygons/lines appear as i move the mouse. All other applications seem to be okay. anyone else seen this? Apple support say they know of the problem but there was not sufficient momentum to look into creating a fix.
I have an early 2008 Imac with an Nividia 8800 GS graphics card. It apparently failed two weeks ago, and I just got the machine back after the Apple Store replacing the card.The only graphical glitches I had on the Imac, was the faint line that would run across the screen that you could see on a white background if I left a program's window opened to long; and when using Safari, while encoding a dvd, trying to open up a new tab I would get images of whatever I was encoding in the new safari tab for half a second. Then it would correct itself and bring a blank safari page.
I have an iMac G5 (rev. B with ambient light sensor) which has suddenly started having a problem where the entire screen is covered with pink artifacts. The iMac had been left on overnight and when waking up in the morning I found the screen looking like this and now it continues to stay like this no matter what I do. I have attached a screenshot and was wondering if anyone might have a clue what has caused this to happen
I have a 24" 2007 iMac, the first aluminum ones, 4Gb of Ram and a recently upgraded HD to 1Tb (from a 320Gb failed drive). Recently, I have noticed that under some active usage, such as playing World of Warcraft or Excel, the screen will start to turn completely off for 10 seconds, and then back on for 10 seconds. It will continue to do this for about 3 hours, turning on and off every few seconds or 15 seconds. It will mostly turn completely dark but would also sometimes flicker. The curious thing, is that if I continue to keep playing, the screen would cease doing this after about 3 hours and then be completely normal and fine, but the next night.
The symptoms would repeat itself, and would consistently go away after active usage (3 hours or so). Imagine this, as if the iMac itself needs to be "warmed up" for 3 hours before normal usage. It would also appear that if I hit the machine (or tap it), this may sometimes bring a dark screen back to life for a few seconds. I plan to bring it to support, but I just want to get some ideas from you guys as to what this can possibly be.
Some of my guesses: 1) It cannot be software as physically hitting it or my dog barking would affect the rate and speed of the random turn Ons and Offs. 2) It could be a loose connector from my recent transportation of it while upgrading my HD, but then why would it become normal after 3 hours of usage? 3) Maybe something to do with RAM or video RAM? It is faulty, and thus only prolong heavy usage would "run it in" for the session? After not using it for a while, it goes back to its failed state?
The screen randomly turns black without any major reasons. It doesn't seem to be a sleep mode/screen saver thing as the music continues to play on. I can adjust the volume or pause the music with the keyboard but the screen just won't turn back on. I have to shut it down using the power button and it happened several time the last couple days. Anyone else experience the same thing and got a solution?
A while after I installed Snow Leopard I started to notice odd glitches I can't think how to describe them. They appear randomly and don't follow anything specific. Anyway has anyone else experienced these? They only started appearing once I had snow leopard installed. I have an early 2008 Macbook 2.4 GHz with an Intel GMA X3100.
Here are some screenshots so you can see what I'm on about.
Hopefully somebody can tell me what's wrong. because it's getting basically impossible for me to do anything on 3 year old MBP. These are artifacts show up mostly when I use Safari. In fact when I CTRL T for a new a tab that's when it's the worst. But it happens when I'm using Photoshop sometimes and other programs. but anyway it seems to be getting worse.
Flash 10.1 released today... Video artifacts when using flash?
I downloaded and install the new Flash on two newer Macs and experienced screen artifacts when I tried to run certain flash sites... Just me or others as well?
I'm gonna apologize in advance if this was already posted, but I'm not quite sure what the technical phrasing for this issue is, so I could've missed it in search. I'm running a Macbook Pro 17', manufactured around September 08. It's currently running OS X 10.5. I received it from my school with the computer already set up and all the software pre-installed, so I personally don't have access to things like the boot disc and other base software, but I can get a hold of it if it's necessary. The crash: Somewhere along the boot-up process, or somewhere soon after boot-up, the computer will freeze and a bunch of pixels will rearange themselves. I wish I could show a screenshot, but the best way I can describe it is that these little jagged stripes of pixels will move to places they aren't supposed to; for example, below the little spinning boot-up circle on the initial boot screen, there's a block of pixels kind of shaped like --.--_ that pulses darker and lighter in time with the pixels on the bottom of the circle, so they just seem to be transposed from another position on the screen. If this happens during boot-up, which is most of the time (on the screen with the dark grey apple on a light grey background), then the computer will try to boot up for a while, then the artifacts will run in stripes down the screen and a window will come up telling me to restart my computer. Sometimes--usually when I've shut it down and taken out the battery and let it sit for a while--it'll get past boot-up, and I'll get either almost to the desktop or even get a couple minutes of actual use before the artifacts appear again and the computer freezes.,......
I just upgraded my MacPro1,1 to OSX Lion. At the same time, I was having some problems with my video card and replaced it with a NVDA,Display-B. It seems to be the same as what I took out but am getting some screen artifacts as well as windows jumping and distorting.
I was using Audacity on my mac running 10.4.11, on some seriously large files (85MB mp3s were exported from these original wav files!), when during this these red vertical lines started popping up on my screen; mainly where a window had been moved. These lines haven't gone away and I'm not sure how to fix this problem. I'm stumped! Having repaired permissions and run the Disk Utility from the Install disk, I'm at a total loss. The intro/gray screen, apple logo doesn't have the red lines, but every other screen does.
Why does Minecraft look like this on my iMac? Is my video card messed up or something? It all flickers and changes as I move and look around. And it's not the mods, it did this stock, before I install the MrMMods.
Apple on Wednesday afternoon issued a number of updates, addressing high processor usage and other glitches in its 27-inch iMac, as well as various security updates for Mac OS X 10.6 Snow Leopard and Mac OS X 10.5 Leopard.
27-inch iMac updates
Two updates released Wednesday address issues with the 27-inch big screen iMac, released in October 2009.
"27-inch iMac EFI FW Update 1.0" is recommended for all systems with quad-core Intel Core i5 and Core i7 processors. The update resolves an issue that caused high processor utilization when playing audio through the headphone output, and fixes a problem that prevented the display backlight from turning on after powering on the iMac.
The 2.1MB update is available for download from Apple. It requires Mac OS X 10.6.3 or later.
"27-inch iMac SMC Firmware Update 1.0" fixes Target Display Mode compatibility issues on the 27-inch desktop iMac. The 397KB update also requires Mac OS X 10.6.3 or later.
My screen periodically starts flashing and getting huge white lines that run down the screen when I play games (only have crysis maximum edition) but then it stops and goes back to normal. Ive noticed that it doesnt happen all the time, and not at certain moments in the game (i.e. happens at one point but doesnt happen again at that same point a different time) and it will stop if i go and look only at a wall. Is this normal or is my MBP F'd?
I have never witnessed anything such as this on a Mac before, so I'm completely at a loss. It's hard to replicate this problem, as it seems to be totally random--sometimes it'll happen when coming back from sleep, but more often, it just happens in the middle of regular tasks. While I'm using the computer, the screen will suddenly go black for several seconds, and I simply have to wait for it to return.
Is anyone else experiencing this issue? I have a external monitor plugged in and I use my Macbook Pro (2009 Uni) as a secondary monitor. Randomly, the macbook screen just goes black. If I move my mouse on to the macbook screen, I can see the mouse cursor, but the rest of the screen is black! It's driving me mad!
The only fix is to un-plug the monitor adaptor or adjust display arrangements. It's really cramping my style.
iMac 27 the screen goes black at random times. If left for a time and by pressing ctrl, Shift Eject, the screen comes back and can remain on for the rest of the day. However, the next day the same thing happens.
Energy saving set to - Hard disk never sleep, Screen sleep in 15 mins.
I recently was given a G3 iMac (Slot Loading), and was wondering what I could do with it. So far, I'm using it as an MP3 player, and I put some random videos on it, but not much else. I'm planning on doing a youtube series about ways to use an old Mac, but theres one problem: The iMacs screen is difficult to record with a camera, (scan lines) and there are not video-screen-capture programs available for OS 9. I know this post seems confusing, but basically I'm wondering if anyone can suggest,
I own a MacPro1,1 that has a Geforce 7300 GT running on it. That video card comes with one Dual-Link DVI port, and anonther that is Single-Link. I just bought a Dell 30" 3008WFP monitor that has a max resolution of 2560x1900.
When I first connected, it worked great. I was getting the max res; life was good. Then I started getting this random green fuzzy screen that would come and go at whim. I couldn't reproduce it, and worse was I have not figured out a way to get rid of it. Early on, just unplugging and replugging in the cable worked. Then that stopped working. Rebooting stopped working. Once i was able to get the green to go away by powering down the display and powering it back up. Yes, totally random.
Here are some more facts:
1. Setting a lower resolution doesn't rid me of the green fuzz effect.
2. If i connect to the same monitor using the single-link DVI port, everything works great, but only reaches 1920X1600 (as expected).
3. Connecting to different monitor using the Dual-Link DVI port works fine, albeit that the other monitor has a lesser max resolution.
4. I'm running Snow Leopard 10.6.3 and I have all my software updates in place.
5. I've attached a screenshot of what this looks like.
So my laptop case has been splitting near the screen and it also seems to swell at random points. I have never dropped my laptop, I take great care with it as I need it for school. Last time I went to the apple store they told me it was a cosmetic issue and id have to pay around $800.00 to get it fixed. This time I decided to call the national apple line. They told me they think it should be taken care of, and that some one was being dis ingenious in the store (did I get screwed maybe because some one's boss told them to stop giving customers replacements? I have no idea). So Now I am taking this to the apple store tomorrow. What do you think I should argue? I think since I have a 3 year protection plan, I should get at least my entire case replaced, if not a refurbished macbook pro/ or an upgrade.
Do not want a nuisance to escalate into a serious problem thru benign neglect. Random black screen -- Turn monitor off then on, and all comes back fine. No loss of power in machine, no fan quirks, no overheating. Is it the Monitor? or the graphics card?
How many Mac users have suffered from the problem of small coloured squares appearing at random on the iMac desktop? They can be wiped by dragging a window over them but they will eventually reappear. I have discovered at least three other threads where this issue has been discussed but our local Apple store is claiming that Apple haven't declared it as a legacy fault. It would be interesting to hear how others have been treated when presenting Apple with this fault. At first they thought it was the GPU but they now think that it is either the logic board OR the logic board AND the GPU together!! Being charged between £480 and £650 to repair a machine that is less than 18 months old is a bit much from a company that continually boasts about the quality of its products.