MacBook :: Graphical Glitch On External Display?
Nov 12, 2008
I am seeing graphical glitches appearing on the 2nd screen hooked to my aluminum MacBook (late 2008) through Apple's mini DisplayPort to DVI adapter. Dancing pixels, of a sort.
They are not there initially, but appear after an hour or two of use.
Unplugging and re-plugging the screen into the MacBook clears the issue...for a while...
The monitor in question is an Apple Cinema Display with an ADC connector, going through and Apple DVI to ADC converter before getting to the mini DisplayPort to DVI adapter. It's a lot of adapters, but it should not be a problem. And the glitches were never seen when this external screen was (until recently) used with my MacBook Pro rev 1.
See a poor-quality video of the glitches here:
[URL]
Is anyone else experiencing this?
I have since returned my 2.0GHz MacBook in exchange for a 2.4GHz unit (I could not live without the illuminated keyboard I was used to on an earlier MBP). I see the glitch on this unit as well...
I recently launched Unreal Tournament 2004 while the glitch was evident and the dancing pixels became dramatically more prevalent - maybe 1/4 of the on-screen pixels were affected. When I exited the game, the external screen went back to the "normal" level of dancing pixels. Sleeping and waking the laptop, as expected, removed the glitches...until they come back.
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Mar 8, 2012
see the following video I have posted on youtube. The problem is happening on the late 2011 13"inch Macbook Pro with intel 3000 HD graphics. The problem is limited to iPhoto window. Is it a faulty GPU? or a Software problem? [URL]
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Dec 29, 2008
I've recently did the switch to Mac (and I love it!). But I'm having an issue with MSN Messenger for Mac [7.01], and I was wondering if anyone could shed any light on how I could fix this.
Anyway, when I go to change my Display Picture, I choose the display picture, however it won't let me click OK. It's highlighted blue, and I can click on it, however it just won't accept. Its like if I was clicking on a grayed out option, yet it isn't. It could just be a simple setting, I've no idea.
Anyway, I'm running it on an Early 2008 MacBook / 10.5.6.
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Apr 4, 2010
I've got a late 2007 SR whitebook 2.2ghz 4gig of ram with intel gma x3100 using Snow Leopard 10.6.3. Last couple months (I think) I've experienced some graphical corruption around the edges of apps (it goes black mostly but sometimes looks like lots of lines) it also happens in expose around the windows, also on dock icons. It happened in 10.6.2 and now 10.6.3, its not happening at the moment which is annoying as i can't show you, my macbook seems to run very hot (well it feels hot underneath though the iStat dashboard shows it idling cpu at 57 degrees c).
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Sep 4, 2014
My external display (HP w2207) seems to conflict with my MacBook Pro (15 inch Retina display, early 2013) since I upgraded MacBook OS to 10.9.4.The external display works at initial boot of Mac but does not work after OS sleeps and I attempt to awaken, and while the external display is not waking, the Retina display flashes through different screen views, which only partially reflect my normal screen, or do not reflect my normal screen at all.
Info:
OS X Mavericks (10.9.4)
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Jun 19, 2012
While using Google Sketchup and several other prgrams concurrently my macbook air cpu heats up substantiall. I like keeping the air "open" to allow for maximum heat disipation but of course this keeps the air screen on while I only want to use my external monitor. Is the only way to turn of the air screen turning down the brightness and using the "Mirror Display" option or is there another setting which alows my to utilize only the external display while the screen is open on the air?
Info:
MacBook Air, Mac OS X (10.7.4)
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Mar 2, 2009
As the title states. I am looking for an external display that matches the display on my black MacBook. I want one with the same gloss finish as my MacBook, this way I can calibrate both screens to look the same. That way when I switch screens it doesn't look different.
Anyone know of a screen that looks identical to the (previous generation) MacBook? I was thinking of getting a Samsung T240 but it has a different finish. How are ASUS screens? Any screens out there that have the same gloss finish?
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Apr 5, 2010
i'm hoping someone can help me out on this little problemmy usual set up is a pair of speakers connected with jacks via an m-audio usb audio interface, with an external monitor connected via mini-dvi to dvi.now for some reason my audio interface has randomly broken (on a side note, could a power cut have somehow broken a usb peripheral connected to my macbook whilst it was asleep?) so i've hooked up my speakers to the line out to rca. Now for some reason, when i plug the mini dvi connector into my macbook i get an incredible amount of hum. not just a little, alot!
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May 21, 2008
My new Mac Pro arrived the other day, and I've been having some graphical problems with it, mostly is Finder. The computer itself runs great, and it surpassed my expectations running Final Cut Pro. But these graphical errors never happened on my old Powerbook, and they're reminiscent of the days when I used PC's. Basically, sections of the screen don't get "erased" or "refreshed," so portions of old windows will stay on the screen after it's been closed or moved, kind of like it's leaving behind a trail or ghost after it's gone. The clock wasn't graphically updating, either, so at 6 tonight it said it was 2:25 p.m. Has anyone else had similar problems?
I'm running on 2 x 2.8 GHz Quad-Core processors, 2 GB of RAM (soon to be upgraded), 8800 GT graphics card, and my display is a Samsung 2253BW. Unlikely it's the monitor, but possible, I guess?
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Jun 4, 2012
I have an 13" MBP that I ordered new in April, 2012. It is running Lion. I have an external monitor that is capable of 1440x900 resolution. I have an external keyboard and trackpad hooked up, and I like to close my MBP up and stick it in a BookArc. I want to be able to have the internal display disabled and to have the MBP only allow me to put windows on the external display, so long as the lid is closed. I also want to be sure that I am taking advantage of the resolutions available on my external monitor, which are higher than those supported by the internal display (specifically 1440x900).
This doesn't seem to work because I either have to allow the MBP to continue to draw my desktop across both screens (internal and external), OR use the "mirror displays" mode, which restricts my resolution of my external monitor. This means I either forgoe the additional resolution benefits of my external monitor, or I end up with windows that fall off-the-cliff, so to speak, because they are drawn in the portion of the desktop that would be shown on my internal display (which is closed).
I've read the community support pages on using the MBP with an external monitor, most relevantly, this page. It simply recommends using the "mirror displays" option. However, this option, as I mentioned above, doesn't allow me to make use of the additional resolution, and my external display looks bad. how to keep the 13" MBP in closed clamshell position, with the internal display disabled, and use my external monitor at resolutions higher than those allowed by the 13" MBP but which are available to my external monitor when not in "mirror displays" mode?
Info:
MacBook Pro (13-inch Late 2011), Mac OS X (10.7.3), External display (1440x900)
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Sep 5, 2009
So turned on the computer today after installing Snow Leopard yesterday and first the menubar had graphical glitches but it disappeared when I clicked the icons. Went to my desktop sometime later and I saw this Bug or is my display giving up?
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Jun 24, 2012
I am wondering that is it essential to connect power adaptor all the time while operating in closed calmshell mode? When I unpluged the cable it didn't work. Is there some way?
Info:
MacBook Pro, iOS 5.1.1
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Sep 22, 2010
System:
Macbook Pro
2.3ghz core 2 duo
Radeon x1600
OS 10.6.4
I'm seeing a severe graphics glitch. At first I attributed it to a VM, but it has started affecting my whole system. Repeated reboots will eventually clear the issue, but it will trigger again when I boot up a VM, watch a flash video, or do anything GPU intensive. This doesn't happen every time I perform these actions so I have had difficulty finding a specific cause.
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Jun 28, 2010
So far this has happened twice to me, once while playing CS:S, and once today while playing TF2. You can kinda see the weird shapes that appeared on my screen in my picture, except in game they covered the entire screen. Is this maybe the GPU overheating? (I added the red circles afterwards btw)
Could it be a problem with geektool?
edit: btw, it was fine after a restart
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Apr 30, 2012
I have a late '08 MBP. A couple months ago I started having problems with my Mac running slow, and acting "glitchy." Since then I have maxed out my RAM and have over 60GB of free space on my hard-drive. I am still experiencing the same problems. What do I do? I think that I may have a virus, despite the common believe that Macs are not vulnerable to viruses.
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Nov 11, 2010
So I'm doing a presentation about Playing Cards for a contest. I design a full deck of cards on Photoshop and them convert each card to .png to insert them on keynote one by one to arrange them like a spread deck, I put 40 cards in one slide with some object animation as well as slide animations The problem is: when I run the "view test" to see who the slides looks like, it takes FOREVER to jump to one slide to the other, and the animations barely play, I tried to make a QT video to try to see, and Keynote doesn't handle it and crashes.
I looked up to the Activity monitor, and it told me the keynote was using almost 800mb of memory (out of 4gb), to be fair I quit all the apps running just to make keynote "feel better", no progress.
The only solution was to delete the slides with the 40 cards and just work on the slides with less than 10 cards and add those 40 cards slides back when the presentation is done.
But it is so inconvenient as some objects animations on some slides are related, including all the slides with the 40 cards, furthermore I have to present it, the solution would be convert to QT movie but again keynote doesn't handle it.
I'm very disappointed with keynote, I wasn't expecting this malfunction at all.
What should I do?
Any bad experiences with keynote as well?
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May 18, 2009
I'm using one if the first gen Macbook Pro's and I seem to be experiencing major artefacting and ground just disappearing. I was thinking that it may have something to do with the fact that whenever I play a game(unless it's ancient) the fans rev up to 6000 rpm and the base of the computer becomes way too hot to touch. But I have also heard that it could be something to do with not having up to date drivers though I don't know how to check this or even where to download the correct ones. Oh and by the way, the games I tend to play are mostly games that have come out between about 2-6 years ago though I occasionally play a more recent one like Fallout 3(though for some reason it didn't appear to be so bad on this which I found weird considering I had to play it on the lowest settings in order for it to be at all playable)
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Dec 1, 2014
I have a new 27" iMac retina display. Is there any way to use it as an external display (since it does not support Target Display Mode)?
Info:
iMac with Retina 5K display, OS X Yosemite 10.10.1
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Sep 17, 2009
Just today the dock, dashboard, and dragging files made it look like a graphic glitch, it seems it may be the graphic card. I'm posting a pic to see what you guys think.
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May 22, 2007
For the past few months i have been using an external display hooked up to my 12" powerbook g4. I have had it on a dual display mode so no mirroring. Recently i would open the laptop lid waking it from being in sleep mode and my internal display will not turn on. The apply system profiler does not even recognize that the internal display exists. My external display works fine and has always been set as the main display. If i go to detect displays nothign happens. I have tried restarting the computer, instering system disks, unplugging the external and nothing has worked. I simply cannot get my internal screen to fire back up. When i used to unplug my external display the internal display would switch back to being the main display and everything would be fine. Now i cannot get the internal display to function whatsoever. Please try and help me as a need this laptop working and i will be ordering a mac pro soon for use with my external display.
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Jan 23, 2008
Just wondering if anyone could help me figure this out.
I have my 40" flat screen plugged into my imac via VGA cable to mirror the image.
I'm just trying to have the imac display sleep while I play a movie full screen through the external TV.
I've tried two different ways but both have failed.
1-I set up a hot corner in the imac to sleep display but this results in both the display and the TV sleeping.
2-I just set the power settings to sleep after 1 minute. This works but then If a movie is playing the computer won't go to sleep.
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Dec 12, 2008
I have a Macbook Air, and i just picked up the new LED ACD from my local apple store. Since im new to mac, is there a way to either close my Air and not have it go to sleep? I want to use the external display as the primary display with my laptop closed, any ideas?
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Apr 25, 2009
I am about to buy a new 24" iMac. I currently have a Dell 2408WFP 1920*1200 display which I would like to use as a second display for the iMac.
Which Mini Dislpayport to DVI adapter do I need? Single-Link or Dual-Link?
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Sep 6, 2010
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.
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Jul 1, 2012
I own two Intel-era Mac Pros, one at work, the other at home office.couple months ago both started having the same problem: a mix of freezes/hangs and weird graphical artifacts showing up on the screens.Usually I need to reboot. Usually a reboot fixes the problem for a while until it recurs. If it was just one computer, I'd figure disk problem or graphics card.But the fact that both have been affected at the same time makes me suspect some software issue or possibly a trojan/virus.
Info:
mac pro, Mac OS X (10.4.8)
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Dec 12, 2014
I have received an email in graphical HTML format — a series of venues and dates for a band in the form of a grid. It shows up beautifully in webmail, but in Apple Mail it shows uselessly as unformatted and unpunctuated text. Is there any setting in Mail prefs., or some other subterfuge, that would allow such emails to show properly in Mail?
Info:
Mac mini, OS X Mountain Lion (10.8.5)
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Oct 26, 2008
I have a question about using dual displays with my new macbook. The basic issue is this:
1: plug in second display and setup dual monitor support to use the external hi-res display and the macbook's display (no problem here).
2: drag windows to the external display and resize to use (no problems here either).
3. Power down and disconnect the external display.
4. Start up the macbook without the external display and try and open up a program that I was using previously on the external display. The problem is that it is resized and positioned for the external display and is now off the screen of my macbook display and I can't directly get to the title bar to move it or the resize corner to resize it.
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Jan 13, 2010
I just purchased a 23" monitor to replace my iMacs 17" display (since it has a nasty crack in one of the corners). I hooked it up fine and all, but the displays are linked, allowing me to hover the mouse to the iMac's display which I find annoying most of the time.
Is there a way to make the iMac display zone out and just use the external by itself?
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Apr 7, 2007
I have a 1.83 MBP, with 1.5 gigs of RAM (stock 512 + additional crucial 1gb) 80 gig HD. Pretty standard.My issue is that once in a while when I restart my machine, bootup is really slow and then I get a weird screen glitch. Often I won't get a full re-boot but will get a half appearing dock and no desktop icons. Sometimes it will have lots of grainy lines across it. Sometimes I will get the beach ball for extended times and it will just freeze there. Basically I keep restarting it, and eventually it goes away and boots up normal.
The thing is I can't really replicate the problem. It just happens at random. Sometimes it happens after I have a system crash, and I need to restart, and sometimes it happens just after a system update restart.Like I said, it doesn't happen that often, but when it does it kind of freaks me out. I've had the logic board replaced in the past to eliminate the "whinning" (which, thankfully is now gone) and I wonder if this is another logic board problem. Other than that the computer has been great. And upon the complementary Applecare expiring pretty soon, I wonder if I should take it in for a repair or just not worry about it. It's kind of hard to take it in if I can't really show them the problem.
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Nov 10, 2009
I'm interested in the new iMac but could not work with a glossy display. Can anyone share their experiences of using the iMac with an external display? In one respect it seems like a waste to have two monitors but the base model costs little more than the maxed out Mini and seems like the better option.
I would be interested in seeing photos of any setups featuring the iMac and an external display.
Also, is there a way to turn off the iMac display when using an external display?
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