Graphics glitching... Logic X or GPU?

I have the new Mac Pro Late 2013, 8-core, with D300 graphics cards. 64GB RAM.
I've been having lots of UI lag using Logic Pro (Logic always has issues though..), but I've also had crazy graphics glitching. It very much looks like a failing graphics card.
Thing is, I took the computer into the Genius Bar, they tested it for 2 weeks, said my graphics card wasn't the issue and that it's my memory. I replaced the memory (it's from OWC), and ran MemTest for four days. No errors.
Graphics glitching still happening though. Could Apple have been wrong about my GPU?
Here's a video of the glitching: https://www.dropbox.com/s/g3t6h0au4cw6g03/LogicGraphicsArtifacts3.mov?dl=0

Run the Apple Hardware test and see if it flags the graphics card.
"com.apple.GeForce(4.5.6)@0x8ed000
dependency: com.apple.iokit.IOPCIFamily(2.2)@0x5c3000
dependency: com.apple.iokit.IOGraphicsFamily(1.4.7)@0x6c7000
dependency: com.apple.iokit.IONDRVSupport(1.4.7)@0x6e2000
dependency: com.apple.NVDAResman(4.5.6)@0x6f1000"
That entry from your log certainly indicates that there is some sort of issue with the card. If it is the card you can take it in for service and have the technician diagnose the unit to confirm it is the card and then have it replaced.

Similar Messages

NMP - Graphics glitches, Logic UI slowdown

So I've been having weird graphics glitches with my new Mac Pro (Late 2013). That, along with Logic X having MAJOR UI lag problems. I've asked around a lot on the Apple Logic forums and third party forums too, no dice.
My computer is the 8-core, with dual D300 GPU's. I took the computer in to the Genius Bar and they had it for a whole week, then told me they couldn't reproduce the issue but that my memory showed up bad after they tested that. I switched out the memory... same thing still happening.
I thought it might be to do with my 27 inch cinema display, so I switched that out for an HP display, no change.
What can I do here????

The warranty entitles you to complimentary phone support for the first 90 days of ownership.
If you bought the product in the U.S. directly from Apple (not from a reseller), you have 14 days from the date of delivery in which to exchange or return it for a refund. In other countries, the return policy may be different. If you bought from a reseller, its return policy applies.

Graphic Glitch - MacBook Pro, 15-inch, mid 2010

Hey everyone,
I have a MBP 15" mid 2010
Processor 2.4 GHz Intel Core i5
Memory 8 GB 1067 MHz DDR3
Graphics NVIDIA GeForce GT 330M 256 MB
HDD1 OCZ-VERTEX2 SSD 120GB
HHD2 (replacing optical drive) Seagate Momentus 2.5 inch XT ST95005620AS 500GB
I have a graphical glitch quite often, which consists of some on screen corruption that lasts for a few milliseconds - enough for me to see it, but rarely enough for me to actually take a screenshot of it. Last week I managed to finally take a screenshot of it, which is great, as I can finally show that I'm not crazy. Please see below.
I pretty much assume it will be a problem with the NVIDIA GeForce GT 330M (which is usually in use all the time, since I use an external screen in addition to my mbp 15" one).
Now, because this is not a crash event I doubt there'll be any log about it (but I'm all ears).
Regarding it's consistency and frequency it's very hard to say... it does happen a lot throughout the day. I have tried not running programmes that I feel interact with graphics a lot (F.lux and gfxCardStatus) but to no avail.
Anyone has any experience with this or some advice for me?
Thanks!

Mid-2010 15" MacBook Pros - the bad NVIDIA GPU
If you're having frequent kernel panics with your 15" mid-2010, or intermittent screen problems, the problem is, more than likely, the faulty NVIDIA GPU found in a number of those machines.
Here's just a sample of a kernel panic log that points to the faulty NVIDIA card:
Kernel Extensions in backtrace (with dependencies):
                 com.apple.nvidia.classic.NVDAResmanTesla(8.2.4)[80472F2E-D31D-32C4-88BA-2EB3D63 C159F]@0xffffff7f93c70000->0xffffff7f93ed8fff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f938ba000
            dependency: com.apple.iokit.IONDRVSupport(2.4.1)[999E29DA-D513-3544-89D1-9885B728A098]@0xff ffff7f93c60000
            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f93c1d000
         com.apple.nvidia.classic.NVDANV50HalTesla(8.2.4)[B0E6AAA7-E970-3D81-8B43-145D56 A3A4AC]@0xffffff7f93ee3000->0xffffff7f9418cfff
            dependency: com.apple.nvidia.classic.NVDAResmanTesla(8.2.4)[80472F2E-D31D-32C4-88BA-2EB3D63 C159F]@0xffffff7f93c70000
            dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f938ba000
         com.apple.GeForceTesla(8.2.4)[B6C71E9A-E304-354B-80AD-C69C9032D367]@0xffffff7f9 4bd4000->0xffffff7f94c9efff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f938ba000
            dependency: com.apple.iokit.IONDRVSupport(2.4.1)[999E29DA-D513-3544-89D1-9885B728A098]@0xff ffff7f93c60000
            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f93c1d000
            dependency: com.apple.nvidia.classic.NVDAResmanTesla(8.2.4)[80472F2E-D31D-32C4-88BA-2EB3D63 C159F]@0xffffff7f93c70000
         com.apple.driver.AppleMuxControl(3.4.35)[1BFF66C1-65E4-3BB3-9DEE-B61C3137019B]@ 0xffffff7f955d9000->0xffffff7f955ebfff
            dependency: com.apple.driver.AppleGraphicsControl(3.4.35)[09897896-ACBD-36B5-B1D4-0CCC4000E 3B3]@0xffffff7f955d1000
            dependency: com.apple.iokit.IOACPIFamily(1.4)[045D5D6F-AD1E-36DB-A249-A346E2B48E54]@0xfffff f7f93b27000
            dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f938ba000
            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f93c1d000
            dependency: com.apple.driver.AppleBacklightExpert(1.0.4)[E04639C5-D734-3AB3-A682-FE66694C66 53]@0xffffff7f955d4000
Here's the "official" Apple take on the issue - but the very real kernel panics need not be preceded by 'Intermittent black screen or loss of video'... in fact, you might not experience any video problems at all. Although video problems can certainly be a portent of things to come…
So what can you do? Print out a copy of your kernel panic and a copy of the Knowledge Base article and take them, along with your machine, to your local Apple Store or an Apple Authorized Service Provider. The unfortunate thing is that many people have passed the “three years from date of purchase” now and Apple is not honoring the free logic board replacement for many users. Some dealers seem to be making some exceptions for those past the three year mark, but don’t count on it…
Good luck,
Clinton

Macbook pro retina graphic glitch

Hello,
I'd like to share with you my story with the problems I've had with my macbook pro retina 15' 2012 (with both intel and nvidia graphics) and ask for some help.
First of all, back when it still had Mountain Lion as its OS I already detected some graphic glitches. When I started the mbpr, 1 out of 5 times it would load buggy. The dock would shake whenever I move the mouse over it, exposé would lag a lot and eventually scrolling in Safari was terrible, incredibly shaky. Basically every animation on the OS went laggy or just at 10 fps.
However the performance in terms of speed and results was still OK. If I played a game I would detect no error whatsoever.
So after some months of ignoring it because I had work and couldn't take the mac to the store I decided to take it. It was getting worse as it started to happen more often than usual. By then I had already upgraded to Mavericks (no clean install, just updated) and the problem still persisted.
Visit #1:
After explaning the problem and being able to show it to the genius they took my mac. They called a couple of days after telling me it was a OS issue and they did a clean install of Mavericks.
So I took it home, reinstall everything from scratch, they told me it may be an account/user issue so I better not use time machine to recover anything.
After a month it started to happen again. I have to say that it happen after I had already installed everything quite some time before, not right after installing any particular app or while running any.
It would load buggy again 1 out of 2/3 times and it wouldn't stop until I restarted and if I was lucky enough it would load OK.
Visit #2:
I returned to the genius and explained again the problem. They decided that it had to be some graphic issue related to the intel or nvidia systems so they replaced the logic board.
Again a couple of weeks later I detected the problem again.
Visit #3:
Once more to the store, they were quite puzzled that even after replacing the motherboard it would still show the issue.
After doing some tests they decided to reinstall Mavericks. Once installed they found no issue so they decided it was solved.
After this I had to return once again because it turn out that they forgot to connect the keyboard backlight system and it wouldn't light.
Anyway, this time I decided to install only the absolutely necesary apps for my work. I even downloaded the newest versions of all of them (if they had newer). Most of those apps are from the Mac App Store and the ones that are not are absolutely famous and used by thounsands of people, not that I use alphas or betas of any app.
One important detail is that the problem was getting worse. Now every time I started the mac it would be buggy and it was extremely shaky, it was impossible to read while scrolling in Safari now. Sometimes when using exposé/mission control it would even show weird pixels on screen. Every time I had this problem it was worse, more shaky and more often.
Visit #4:
Being already a VIP visitor of the genius bar I went decided to solve the problem once and for all. I told them every detail, they saw the problem and I insisted on the software I had was completely "normal". They told me they would replace the screen, the logic board again and the IO just in case.
So imagine my surprise when I receive a call from the genius who was repairing my machien saying that after reinstalling Mavericks it showed no issue! I was furious. They insisted that it was some app I had installed and that I needed to install one app at a time, wait ONE WEEK and if nothing happens install the next.
They were not kidding aparently. After complaining I had no choice but to take my mac back and....here I am.
So my question (after the diary I've written, sorry) is:
Is this really being caused by an app I have installed? Is really an app capable of crash the entire animation system and only while in the OS UI and not in games? I've never had any app running on the background besides Fantastical (from Appstore) and Dropbox (updated).
I am listing the apps I had last time I resintalled everything:
1. 2Do (appstore)
2. Indesign CC
3. Appcleaner
4. Autocad 2014
5. World of warcraft
6. Dropbox
7. Evernote (appstore)
8. Fantastical (appstore)
9. Keynote, Pages & Numbers (appstore)
10. Pixelmator (appstore)
11. Sketchup 2014
12. Skype
13. Steam
14. The unarchiver
15. Transmission
16. VLC
17. iPhoto
So, 17 apps, which I believe are just a few. Is there any of those apps you think may cause any issue? I haven't installed anything yet. I am using my old macbook pro (which btw have every app I had in the buggy retina with no problem whatsoever) while I try to see if the problem persist while installing nothing.
I still don't believe it is a software problem. Since it appears every time sooner and with more "intensity" I suspect it might be hardware but I am no expert.
Thanks for any help or info you can share!

Go for a few day (2-3) without installing any apps. Then install AutoCAD 2014 first and run only that for another couple of days. See if the problems resurface. If not, go ahead and reinstall all software, making sure that you create a clone after everything's installed (try Carbon Copy Cloner - they have a few 30-day evaluation period, I believe).
If problems resurface, you'll know that it's hardware.
Good luck,
Clinton

"Save A Copy As"... graphic glitch in Audio pathway?

Here's the situation...
When I'm done with a song, I archive it to an external hard drive.
By utilizing "Save A Copy As". I can copy the Logic song, all associated audio files, EXS instruments and samples used, etc... to this external drive.
I then like to open the copied Logic song file, to verify that all the audio files used in the song, have indeed copied over, and I'll even play this song, from the external drive, as assurance that all is well.
What's happening lately, is that after I "Save A Copy As", and then open the copied Logic file, I hit apple/9 to see the audio pathway/location of all my copied files, and only some of them are showing that they have been copied to the new location. Many, many other audio files, used in the song, are still referencing the original audio drive location, or sampler instruments drive. Yet, looking in this new locations audio folder, all the files appear to be there.
I was able to confirm they were indeed there, but dragging my main audio drive and samples drive to the trash, thus ejecting them. Then, when re-opening the copied Logic song, and hitting apple/9, now all the audio files are indeed showing that they are in the new archived location. If they had actually been referencing the audio files from the locations that were originally shown, I would have gotten the prompt telling me it couldn't find certain files, because those hard drives had been ejected.
Is this normal behavior? I have never noticed this before.
I'm an anal "type A" personality, and I need (i.e insist) visual as well as aural confirmation that a song file and it's associated audio files have archived correctly, before I' go and erase the original files off of my audio drive.
So, I guess my question is, is this a graphic glitch, or is there some intended purpose for Logic not showing me the actual location of the archived audio files? In other words, visually, it's still showing the original location of SOME of the audio files, not all (which is really bizarre). Why?
Is this happening to anyone else?

Thanks! Didn't see the check box.
"Dennis Knutson" wrote in message
news:[email protected]..
>
> It hasn't. "Select Save As..." and then check the box for "Save a copy
without
> updating callers." at the bottom of the dialog screen.
>
> "Tom Byers" wrote:
> >Can someone explain to me why the "Save A Copy As..." function has
been>eliminated
> in 6i?>>

Graphic glitch and freezing.

I had a graphic problem with my iMac 3 weeks ago, had to take it to an Apple repairer 3 hours away, there just isn't anyone closer, and have had it back for about 6 hours now. I got the Snow Leopard upgrade while it was away and have been looking forward to getting into it all. As soon as I got my iMac home I fired it up and straight away noticed a graphic glitch or something odd on my 2nd monitor, kinda looked like aliens from space invaders... This problem went away if I changed that monitors resolution or if I rotated the display, so I thought it might be a driver problem which should hopefully be fixed by upgrading to SL.
I attempted this upgrade, it seemed to go fine but when I finally got into SL I noticed that once again there were some space invader glitches, but instead of being huge and all the way across the 2nd monitor they were in 2 separate blocks 1 in the top left and one just slightly to the right from center at the very top, they were flashing green from time to time (just like before) but that was about all. After a few seconds all the icons on my desktop and also the dock icons screwed up, display as black and white lines, or weird colored blocks, or super pixelated and just pretty screwy.
I formatted from fresh doing Leopard (without updating fully to 10.5.8) then installing SL, same problem, I then tried installing just SL which worked as usual but still had the graphic glitches when hovering over or interacting this time, also there were some problems with the glitches showing over windows (I'll put a link to a screenshot of them at the end). I'm currently updating a fresh install of Leopard to 10.5.8 to then update to SL to see if that works.
I had a thought that it might be hardware, the logic board and graphics card were both replaced during the repair time, they said they tested it but on the repair form I got it just says 'restarted a few times with no problems' so I'm not sure if they even tested it very much.
It took almost 3 weeks to get my mac back today, and these problems are quite annoying, if I have to lose it for another 3 weeks because of this lack of testing I'm gonna be rather annoyed as I'm losing work because of it.
Anyone got ideas of what it might be? or just anyone else had this problem with SL or just Leopard? Any information would be great.
Screenshot of glitch while doing a google search:
http://www.xager.net/i/glitch.jpg

My old first gen macbook pro had a similar problem (under Tiger and Leopard), it was fixed. My current unibody macbook pro is doing this as well, I've only noticed it now under Snow Leopard.
I doubt it's a software problem, I've had similar issues in PCs when their video cards were running too hot. My current mbp gets these glitches when the system is under more load and so I'm sure its heat related. One time the heat and glitches got so bad the system just locked up.
I hope you can get your system repaired. I am going to now go ahead and try my luck with apple support as well.

Macbook pro (2010) having graphical glitches after Mavericks update

What is your take?
graphical glitches appear and disappear randomly. Didn't have them before Mavericks update!
Thanks a lot for the help

15” MBP Mid 2010 models have been recalled for GPU issues. See https://discussions.apple.com/docs/DOC-5681.
Official Apple statement: http://support.apple.com/kb/TS4088
Print out a copy of your kernel panic and a copy of this Knowledge Base article and go to an Apple store or Apple Authorizes Service Provider with your machine and the documentation.
Genius reservation http://www.apple.com/retail/geniusbar/ .
or find an Apple Authorized Service Provider https://locate.apple.com/country
If it has been three years since your date of purchase then you are past the date covered by the recall but sometimes they honor it anyway.
More on this from another thread: https://discussions.apple.com/thread/5763560?tstart=0

PS CS6 issue with crop tool: graphic glitches

I am using Photoshop CS6 v13.1.2 and I'm experiencing an issue with the crop tool. Whenever I use the crop tool, move the frame around and then zoom in on the image, the image becomes noisy, pixelated or has other 'graphic glitches'. I changed the PS preferences to not use the GPU and then rebooted the computer. Still the same issue without the GPU.
Running on Mac OS 10.8.3, iMac 2011 with AMD Radeon HD 6970M.
Is there another workaround to use this tool until it might get fixed? Thank you.

I've seen the same issue from time to time on windows 13.01.1 usually only on rather large pixel dimension documents.
Does it make a difference if you flatten the image before using the crop tool?
Also, using the classic mode for the crop tool doesn't seem to have that glitch.

Experiencing random graphical glitches in MacOS 10.10 Yosemite

We have several users that experience random graphical glitches. See screenshots below for some examples.
They all use iMacs from between 2012 and 2014 with Yosemite.
The glitches only appear in Photoshop CC, not CS6 or any other programs.
They have these graphics cards:
NVIDIA GeForce GTX 775M 2048 MB
NVIDIA GeForce GTX 675MX 1024 MB
NVIDIA GeForce GTX 660M 512 MB
NVIDIA GeForce GT 755M 1024 MB
NVIDIA GeForce GTX 680MX 2048 MB
I've tried the different settings under Performance -> Advanced Settings -> Drawing Mode, but no change.
Also tried resetting the prefs and changing the color profile settings.
It happens irregularly or at least I haven't found any pattern yet.
Has anyone seen these kind of glitches before?

MacOS 10.10 has some widespread video card driver problems that show artifacts like this. They affect many applications that use the GPU, including Apple's own.
Apple is aware of these driver bugs, and working on solutions.

Graphics glitches occurring with the GeForce 9400M?

Has anyone seen the same type of graphics glitches occurring with the GeForce 9400M in the new MacBooks that occurred in the MacBook Pros with GeForce 8600M GT?
The link to that previous issue is here: http://apcmag.com/appleacknowledges_macbook_pro_graphics_glitch_offersfix.htm
When viewing web pages with both Safari and Firefox, the page gets corrupted when I scroll down with the trackpad (this does not happen when scrolling with arrow keys). Any type of animation or video on a page is also really jumpy and flashes in and out.
It sounds like this was a hardware issue with the graphics card in the last version of the MBPs. Has anyone seen this issue in their new MacBooks?

Hi there,
the same issue on my new MBP Late 2008. First, it happens in Safari, then I tried Firefox and there it was too. I switched the graphics to the second GPU (the better) and it seems the problem were solved. Back on the mobile GPU it never happened again.
I've never tried, but I think the problem occurs when to much Apps are opened and the Mac runs out of memory. The logout for switching the graphics gave the memory back and the better GPU has it's own memory.

Graphical Glitches on Macbook Pro, Reinstalled and still there...

Over the past few months, I have been getting some graphical glitches on my Macbook Pro. Recently, They've been occuring more frequently. I've reinstalled Leopard and they are still occuring.
Since I've gotten this Macbook Pro, It's had the Superdrive replaced, Battery replaced, Magsafe connector replaced, charger replaced, logic board replaced, keyboard replaced, top bezel/trackpad replaced, and the airport card replaced, all to fix various issue's. I've tried to get apple to replace it since it's obviously a lemon but to no avail, even though I purchased AppleCare. This is my second Macbook Pro. Anyways, I've taken screenshots of the problems that randomly occur.
http://farm4.static.flickr.com/3227/27087428344499166290b.jpg
http://farm4.static.flickr.com/3189/270874284436891e9ea3o.jpg

You really need to call Apple Customer Relations (800) 767-2775 instead of AppleCare. Just tell them what you stated in your post.
Be firm but polite when requesting a replacement.

T400 - serious graphical glitches while Hardware Virtualization is turned on in the BIOS.

While hardware virtualization is enabled in my T400, I'm getting serious graphical glitches (garbled graphics). This happens both when outputting to the T400's monitor or when outputting to an external display.
I actually don't have to do anything special to get the garbling to start - just booting Windows 7 and using it regularly will make it start to glitch.
Help please.

Pickaxe wrote:
Thank you for that link, it was very helpful.
The 'solution' of course, was far from satisfying (I'm experiencing Type B visual corruption). Especially considering the model I'm using is preconfigured - Lenovo shipped it with a 2GB+1GB DIMM.
It boggles my mind that Lenovo uses a configuration that is not fully compatible with the processor.
I don't find it so odd, most users will never use the virtualization feature. I personally have 3gb in my T500 and have used H-V with the ATI chipset and it works as it should, I've tried it with the Intel GPU and it is garbage but then again.. the intel 4500 is kinda garbage..
Thinkpad T500-2081 CTO | T9400 2.53GHz | 8 GB RAM | ATI HD3650 + Intel GM45 | 15.4" LED WXGA+ | Windows 8 | ATI Catalyst 13.1 (non-switchable)
Thinkpad 390x | PII 333 | 256mb ram | NeoMagic 256AV | SVGA LCD | OS/2 v4.52

Momentary Pauses and Graphical Glitches

I'm having the following issues with my mac pro that I use at work. I also have the same specification machine at home without the problem.
1.) During a cold boot (after being off over night) two of the screens become absolutely garbled. Both of the LCD's are connected to an NVidia 7300GT thats plugged into the x16 PCI Express port. I also have another 7300GT that drives an additional monitor that doesn't have any issues. This happens when I boot to OS/X, and when I boot to Windows XP. However, on XP it doesn't happen till I login.
2.) When the machine is warm everything seems okay most of the time. Under OS/X it will occasionally hang where nothing does anything, but then after a second or two everything will be fine. There are little graphics hickups occasionally that go away if I move a window over them. Under XP every great once in a while the screen will become garbled and it will lock up. No blue screen or any error messages. I don't believe its ever the screen connected to the video card in the X8 slot.
These are the steps that I've taken to rectify the problem, but they've all failed.
A.) I did the hardware diagnostics and it reported everything as peachy. I ran both the quick test, and the extended test. It DID however seem rather unresponsive during sections of the testing, but that might be normal.
B.) I reset the PRAM/NVRAM. FYI - it only beeped once and rebooted.
C.) I pulled out the Video card on the X16 lane, and replaced it with the one that was on a X8 pci express lane.
D.) I used the video card from step C on the PCI Express X8 lane, and didn't have a video card in the X16 lane. I don't remember if this test worked because I soon had issues booting it. Apparently it didn't like this configuration.
E.) I removed a hard drive that I put in recently (couple months ago). I can't remember having any of the issues before I put it in. The hard drive seemed fine though. No errors, clicking or any strangeness.
F.) I reinstalled OS/X using a brand new disk, and I also installed Vista on it. Vista showed no signs of issues, and the brand new install of OS/X 10.5.6 still had the occasionally pausing. I haven't tried a cold boot with Vista yet. I imagine the graphics will become garbled. I also haven't used Vista enough to experience the every once in awhile (1 or 2 times a day) garbled screen lockup that I had with XP. I have used Vista enough to know it doesn't pause like OS/X does on the machine. I know OS/X doesn't pause like that normally.
G.) I reconfigured the PCI express lanes so that three of them are X8. I haven't tested the cold boot, but OS/X still hangs occasionally. I haven't been able to determine any pattern to the hanging.
H.) There is no indication in the console of whats making OS/X momentarily freeze
I just want to see if there is anything left to do before I start swapping parts with my Mac Pro at home. There really is only the memory (maybe the cards the memory is on as well), mother board and the power supply. My bet at this point is the logic board.
Message was edited by: Jason Mecham

Update - Despite my feelings that it wouldn't work I decided to try the Nvidia Geforce 8800 GT, and to my surprise it worked.
It solved the issue of momentary pauses within OS/X 10.5.6
It solved the problem I had where 10.5.7 wasn't working at all (it was nightmarishly slow)
It solved the occasional graphical glitches within XP
It solved the cold boot graphics/system freezes I was having within OS/X, and XP
It solved Vista's issue with the graphics driver crashing, and reloading a few times a day.(I never turned it off once vista was getting me by).
I find it really bizarre considering that I have two 7300 GT's and I tried both of them individually in the system with no luck.
I haven't tried putting one of them back in combination with the 8800, but that's my next step. I do want support for 3 monitors.
If that fails I'll try the questionable 7300GTs in my home mac pro. I have a 7300GT in it, and it's still working fine.
If the questionable ones fail than I'll feel a lot better. I don't care about a video card, but I do care that my mac pro is working without issue.
The only surprise in this is how well Vista works with crappy hardware. I mean it just kept running right throw the glitches. It would tell me about it, and where it occurred, and after a reloading the graphics driver it kept on going.

Graphical glitch AMD radeon 6490 Macbook pro 15" 2.0 i7 quadcore

I have graphical glitch that seems to happen every once in a while. its like the screen gets a line draw in the middle of it when i move the cursor up or down or when i make the dock reappear or when i move the pages on safari or any other app.

I'm still reluctant to give up on that bricked machine... Since it is able to display part of the boot up messages of the arch install cd and the previously working installation showed everything until loading of the virtual console (at least that's what I believe it did when the screen went black), it looks to me that the problem lies in initializing a different graphical output. That would also explain why I was able to initialize X only with the fbdev driver... and the screen didn't flicker during boot-up when I did radeon.modeset=0 so I assume it stayed on framebuffer mode all along.
Does anyone know of a boot medium that boots into framebuffer video mode even though a GPU is present? All I'd need is a bash or similar shell. I can load into the UEFI shell with arch install CD, but I'm not familiar with that shell and it follows a different syntax than I am used to, as it is designed for an entirely different purpose. If anyone knows a boot medium that does not try to pipe the graphical output through the gpu (or the integrated i915 graphics). Must be something like this around?
Last edited by halogene (2013-05-31 08:16:13)

Freezing Macbook Pro. Graphical glitches and occasional 3 tones on start up. Hardware test shows no errors. Is it RAM or a graphics card on the way out, or software?

Recently my MacBook Pro has been freezing and showing bad graphical glitches. Multiple restarts eventually fix it and a couple of times the three tones break, three tones break warning has occurred on start up. From what I can find this is usually a RAM error but after doing a hardware check I get the response all is OK. This still happens after the check and I am unsure what the problem could be. Can anyone help? Could it be a memory issue, a hard drive issue, Graphics card issue (drivers are up to date) or is something up with the software. I also have a Bootcamp partition running Windows 7 too and this is a problem that presents itself there too.

Most likely to be RAM:
Beeps on startup:
1 beep = no RAM installed
2 beeps = incompatible RAM types
3 beeps = no good banks
4 beeps = no good boot images.
5 beeps = processor is not usable
http://support.apple.com/kb/HT2538
I would suggest you take it to an Apple Store for a free diagnostic.

Graphics glitching... Logic X or GPU?

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