when I start up in Safe Mode and only in Safe Mode in my iMac (mid 2011- HD 6970M 2048 MB) appears white horizontal lines. I changed already the graphic card almost before a year.
Info: iMac (27-inch Mid 2011), OS X Yosemite (10.10.1)
I purchased a late 2006 intel core duo iMac 20'' with an upgrade to os Lion. I've been using it for less than 24 hours, and it has managed to freeze up on me twice, with a followed appearance of pixel abnormalities, horizontal lines, etc. I did my research and it seems to be a graphics card problem, which is a Raedon ati x1600 ,256 mb.
Info: iMac, Mac OS X (10.7.3), Late '06 iMac/2.16ghzICD/2gb
I've had my macbook air 13" 256GB for four days now, I had it shipped to me in Canada because I wanted the ram to be changed to 8GB. When I'm scrolling around on the internet I see a horizontal line appear in the lower half of my screen, it disappears quickly so I haven't been able to get a screen shot. I have apple care, should I take my laptop in? Is this normal? I've been very careful with my laptop, I haven't dropped it or anything (I even have it in the Tech21 Impact snap case).
I have a MBP purchased in late 2006 so it's fairly old.
Lately I've been having really random lock ups and freezing maybe once every week or so. Sometimes when I hard reset it, there's a few horizontal lines across the screen, usually just on the background. It'll go away if I restart it again.
I used the onboard disk checker and no problems are detected. Is this a sign that the hardware will fail soon?
The screen started by having the occasional 'white out' where it would be in use and a white screen would fade in for a few seconds then usually return to normal.
Over the past month I have encountered a number of bugs with Snow Leopard on my MacBook Pro (mid 2006). Ever once in a while, usually during high performance task (like watching flash or encoding with handbrake) the temperature of my cpu will spike to 85-90 degrees celsius and then the system freezes.
During this freeze, I can still move my mouse, but I am unable to click on anything on the dock or any program. Moving the mouse over the dock does not invoke the magnification either. I have to do a hard reset to fix the problem.
Also every once in a while, a long blue horizontal line will appear in on the screen. (sometimes their in iChat windows, sometimes safari, and sometimes the desktop as shown in the photo).
my MacBook pro display that there are frequently horizontal grey lines going across my screen. I've noticed it mostly when the display color should be grey or white, but that's not always the case. It occurs mostly in my Google search bar using Firefox, and also occurs heavily on Facebook in the comments/reply section of a post. Outside of the browser I've also seen it when looking through some personal photos, especially of the sky, the lines will seem to sort of outline different contrasts in white or light tones, kind of like the Magic Wand tool would do in Photoshop. The lines do flicker and change when scrolling.I attempted to snap a photo with my iPhone the best I could.Â
My specs:
-13" Macbook Pro (2009) -Intel Core 2 Duo 2.26 GHz -NVIDIA GeForce 9400M -Resolution: 1280x800, 32-bit ColorÂ
I have a 2 month old rMBP Mid 2014 and i am experiencing horizontal lines in the middle and bottom of the screen. For example, If i was browsing a site and then close the window you can still see parts of the website in the middle of the screen. I took the laptop in for the technicians to have a look and they a blaming it on the software,claiming that Gfxcardstatus is causing the problem. The problem still persists even with gfxcardstatus turned off. Does Gfxcardstatus do this? Is it the Lcd or gpu failure? Take a look at the photos ....
I see since several months some shadows and spots on the top left corner of the screen. I've read in many threads that this is a known issue (defect I would say, since I never misused my iMac).Â
My question is:
is this defect recognized by Apple and do they fix it for free?
This evening, quite suddenly, a gray (or black, depending on what's on the screen) vertical line has appeared across my imac screen, about a quarter of the way up from the bottom. Above that are some are three, much lighter lines (more like subtle variations or blocks of colour running across the screen). These appear on all windows I open. I took a screen shot using grab and the very definite gray line doesn't appear.
I am having issues when watching video's on my mac, which seemed to happen after upgrading to OS Lion.
When watching video's horizontal lines float up the screen, it tends to happen when the camera changes or something moves. The line almost disjoints the picture slightly as it floats to the top of the screen. This is obviously very distracting! Â
Recently I have noticed that in certain videos, specifically those that have a lot of movement and blinking lights there is a horizontal line that will appear and float up during playback. I tried using different media players and the floating line remains. I have also tried to de-interlace in VLC to no help. I will also add that all of my drivers and software are up to date.Â
I've got a 2006 17" iMac (serial # starts with QP) and it's developed several bright, vertical lines on the display. Been reading around and it appears that this is not an uncommon problem. Whether this is something that can be repaired.
I have a severely dented 15' G4 that has suddenly developed an all-over screen flicker together with an bleached effect that sometimes makes it impossible to read. The screen itself has for a year or two now been held together with brackets of folded sheet-brass (they clamp like giant binder clips), because both side supports have broken near the hinge. (I've attached a photo of the brackets and the bleached screen, as well as a photo of one of the damaged side supports.) This new surprise is probably due to the laptop's having recently been transported in the same bag as a leaky water bottle. I turned the computer off and let it dry out overnight as soon as the screen started flickering, but I appear to be left with a permanent bleached screen (can't see yellows at all, black appears as light gray) and occasionally (thankfully temporarily) a super-bleached effect where only very thick black writing is legible. I am certain that this is my fault (either from dropping it too many times or from water damage or a combination of the two) but I'm wondering what exactly my options are for possible solutions. Replacing the LCD would be expensive, but a new computer even more so.
Whenever I watch videos or anything that moves I will see a line going through the video. Its not very visible, But its still there. Some say it could be a virus, others say hardware problems.
I've had my iMac for over 2 years now. Last Thursday, I left it on for more than 3 hours and it started having black and white verticals lines appearing on the bottom and top part of my desktop and the cursor. Yesterday, when I checked it again, it was still there! What can I do to fix it, WITHOUT going to a Apple store?
Simply using my Imac for watching tv on the web, Hulu, and left to help my wife get groceries in the house. My wife checked her email and closed Safari.
I came back in roughly 10 minutes from when she shut down Safari to see a black screen with white pinstriping, and the mac being totally unresponsive. Shut down and rebooted, sent off the report to Apple, and am now here with seemingly no problems.Â
Needless to say, as a photographer this computer is just about as important as my camera. Should I be worried? discovered the thread to this issue, which appears to be quite extensive.Â
Info: iMac (24-inch Early 2008), Mac OS X (10.6.8)
It started a week ago while playing Civilization V on my iMac : the screen suddenly displayed vertical blue (altered with dark blue) vertical straight lines, the sound was still working, i could hear the music from the game. Then the screen turned black and i couldn't hear anything anymore, i had to restart the computer with the apple button. The same happened again with civilization, once with green lines. And today, while restarting after this bug, the screen displayed multicolor lines instead of the grey wallpaper with the apple.
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.
grey screen no apple followed by blue screen with vertical lines. Graphics and logic board replaced <6 months ago. What to do? I held down shift, it gets HOT HOT and makes noises. (for safety mode) followed by a blank grey screen and blue screen. Then tried the other way (I think it's command alt delete? I don't remember) and it turned from grey (no apple symbol) to blue blank. Then third time, grey followed by blue with vertical lines, not blocky clear lines that you can see if you are close to it.Â
First of all I'm new here so just wanted to say 'Hi', its been great to see all the discussions on these forums and they help a lot with buying tips and troubleshooting so thanks.
Problem #1 I purchased a refurb 24" 2.8GHz imac early May and have been using it since then and so far other than the "normal" gradient issue and a brownish tinge around the edges of the screen it has been good.
Lately I've been using Aperture a lot and first started to notice that in some pictures especially ones with quite a bit of highlights like clouds that there are small hatch like patches in all the pics. I know it isn't the pictures but the imac screen itself as you can see it on the desktop as well. It only seems to be centralized in the upper left hand section of the screen and they seem to be lite purple/blue in color. And like I said its only in patches in certain spots on the screen. Don't know if I'm being over anal about this or is this a problem?
Problem #2 I switched to a solid blue background to check the above problem and notice that there is screen burn in of the top and bottom header in the outline of my firefox window on the blue screen. Between switching windows often and applications very frequently and not leaving the computer at all... what the heck? Not normal for imac screens is it? Heat issue causing burn in? Hasn't been an issue with any other LCD I've ever used.
By the way the imac came in a new white box and was wrapped like new in perfect condition but I popped it open without ever starting it once to make a hard drive swap and the thing was definitely a bit dusty inside so in now way was it just used for a couple weeks before being given back to apple.