Mac pro display shows lines

I turned on my Mac Pro and only one of the two displays actually turned on, but it showed a bunch of lines and it was all messed up and wouldn't get past the gray screen with the apple icon in the middle. I unplugged than monitor thinking that was the problem, force-shut down the computer, restarted it with the monitor that hadn't work the first time and the screen did turn on but it looked the same as the previous monitor and did not get pass the start screen either. What is the problem?

If the fans stayed at normal speeds, the software is still running, despite not being able to see what it is doing. If the Caps Lock light (which is under software control) still lights up and un-lights, your complaints are limited to the graphics card.

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My mac Pro Tower shows some green and reddish lines on the monitor and gives report of unresponsive processor

My mac Pro Tower shows some green and reddish lines on the monitor and gives report of unresponsive processor

And never heard of one case of AHT finding or reporting a real GPU related problem.
It does sound like the graphic card and best way to know is to swap it out, even if you have a PC card around.

Mac Pro display flickers with a white screen and then display closes

Hi,
The display on my Mac Pro started showing a white screen and flickering.
So I tried formating and re-installing 10.4.10. I am able to complete the installation of first DVD without flickering. But when after the restart after installation using first DVD then the flickering resumes.
Any idea what is the issue and how we can solve this issue.
The AHT test shows this code 4 SNS/1/40000001:ICAC. According to
http://support.apple.com/kb/TS2081?viewlocale=en_US the code should have a trailing number - but my report does not have any number. Is this error code fine? If no, can some one tell me what is the error in the system?
Thanks,
Ed
Message was edited by: esg123

Same symptoms here. We tried AHT on a good Mac Pro with the video card from the bad mac, and got the 4 SNS/1/40000001:ICAC error. Looks like a bad video card.
Here's another thread discussing the problem: http://discussions.info.apple.com/thread.jspa?threadID=2071334
Dave

Mac Pro Display Issue

Mac Pro Display Issue - Unexpectedly Sleeps and Freezes
Just since a couple of days my Mac Pro desktop has been having display issues. Unexpectedly the screens go into sleep mode, it turns black and freezes, the computer doesnot respond to the keyboard or mouse.
At first I thought this was related to Chrome, and switched to Firefox, but the computer is still having the same issue. I have to shut down and restart each time it gets stuck.
I even went into preferences and changed the energy saver settings to "Never" allow display or harddrive to sleep. But this problem is stil happening.
Does anyone have the same problems? Or a solution?

I cleaned out my mac with compressed air, it was dusty, but the display flickering happened again.
So I followed your advice and installed:
Temperature Monitor
http://www.bresink.de/osx/TemperatureMonitor.html
Which showed that my memory module 1B and 2B were 70 - 75'C(160 -167'F). There was no reading for the graphic card so I couldn't tell if that was over heating.
Then I installed:
smc fan controller
http://www.macupdate.com/app/mac/23049/smcfancontrol
and increased the memory_cpu fan speed which lowered the temperature of the ram to 60'C (143'F).
I even changed this ram's placement and put it in different slots.This ram was the same temperature in the new placements.
Also this is the kingston 2gb ram without heatsinks. Ive used it for 1.5 yrs, and this is the first time its giving me these problems.
Do you know how I can check if the graphic card is over heating? or is the problem just with the ram?
Thank you for all your help!

User Contributed Tips in the Mac Pro Displays and the Mac Pro forum

*The following User Contributed Tips are located in the Mac Pro > Displays and the Mac Pro forum:*
None at this time.
*The following related tips are located in other areas of Apple Discussions:*
a brody - Using a second Mac as a display for a first
http://discussions.apple.com/thread.jspa?threadID=1587927
Publish date: July 7, 2008
See also User Tips Library

You can use the two graphics cards, but it's only useful if you have more than two displays. It won't give you higher speed.

Why no controls on My Mac Pro display for the 9/12 event?

Why no controls on My Mac Pro display for the 9/12 event? I thought it odd that I had no conrols for the event (later in the day) - Just something Apple was trying different. - It was frustrating that I could not pause it , and later, jump to the point where it crashed. (anybody else have that problem?) But later I had my wife look at it on her 24" iMac, and the controls were present and it worked fine. I thought it might be because I had turn off Java; I turned it on and tried it, still no fade in on mouse move controls. Anybody have an idea why? (Apple STILL needs to update the product list on this submit page This is ML 10.8)

After 3 more days, and a reboot, still no controls on THIS video. Everything else seems fine. Even the Apple movie trailers with the same type of "floating" controls work properly. Does anybody have a clue?

27" iMac as Mac Pro Display?

I currently use the 24" LED as a display for my Mac Pro, but give the increased pixels on the 27" iMac and it's MiniDisplay Port in capability, and given it's cheaper than the 30" cinema display, with a much better panel, on only slightly lower vertical display resolution, I've been giving serious thought to switching to the baseline 27" iMac as a display.
A couple things are holding me back. I'm guessing with MiniDP in, you only get the video, no audio like on the 24" LED (which uses USB). Since there's no USB, I'm also guessing there's no iSight pass-through. I could always add speakers and and a mic/cam combo, but that seems less elegant.
Has anyone tried the 27" iMac as a Mac Pro display? If so, please let me know how well it fits.

Peter Miller wrote:
... if there is a "target display mode", ...
Hello Pete.
Search your SnowLeopard Mac Finder > Help for "target display mode" (without the quotation marks) to find the instructions for this new feature.
Among those instructions are:
The external display computer works like any other external display. To change display settings, open System Preferences on the primary computer and click Display.
I looked for the web-based page, but I could not find it, so, at least for now, you will need to view it in your Mac's Help viewer.
EZ Jim
MacPro QuadCore(Early 2009) 2.93Ghz w/MacOSX (10.6.2) MacBookPro(13inch,Mid2009) 2.26GHz(10.6.2)
LED Cinema Display G4PowerBook1.67GHz(10.4.11) iBookSE366MHz(10.3.9) External iSight

Mac Pro display remains black after start up.

My 2008 Mac Pro display remains black after start up. It is plugged in properly and the light comes on, but the screen stays black. It first started doing this about a week ago, but after a manual restart or two, it would start up properly with the display working. Today the display has remained black every time I've tried to start up. Any suggestions for troubleshooting would be greatly appreciated! Thanks!

Safe Mode uses a very simple way of talking to the screen -- it does not even load the screen driver, and it uses a very common low resolution.
If it does not work that way, it simply does not work. You need a replacement graphics card.
User Tip: Mac Pro silver tower (2006-2012) Replacement Graphics cards

Newest Mac Pro: Displays How will 4K be displayed? : 4K 3840x2160 UHD 4096x2550 Where as: 27-inch Apple Thunderbolt Display=2660x1440

How will 4K be displayed? :
4K 3840x2160
UHD 4096x2550
Where as:
27-inch Apple Thunderbolt Display=2660x1440

4k is the generic term for resolutions that have a horizontal number of pixels around 4000. The two most common resolutions are Ultra Hi-Def (UHD) and Cinema 4K (C4K). The first is 3840x2160 and is exactly four times the resolution of "Full HD", or 1080p. The second is 4096x2160 and is one of the "standard" resolutions used in digital cinema projection.
The HDMI 1.4 standard supports both of these, but only at certain refresh rates. UHD, being the consumer version, is supported at 24Hz, 25Hz, and 30Hz; C4K is only defined for 24Hz since most of the material is going to be film-sourced. (This implies that 25/30Hz will include TV material at half their original rates of 50/60Hz.) Over HDMI, all four of these timing formats run at the same clock rate (297MHz, ignoring the fractional versions). This is the highest clock used in this version of HDMI, although the standard allows up to 340MHz. (There may be PC timing formats between 297-340...)
Using generic terms, we call these modes "UHD30" to imply resolution and refresh rate, and if a TV supports UHD30 it will always support UHD24 (although it is not a rule, merely a reflection of reality). A TV can only support C4K24 in 1.4, but it doesn't have to. There are many TVs that will support UHD24 or UHD24-30, but not C4K at all. So the practical limit of HDMI 1.4 is "up to 4k30."
HDMI 2.0, which the Mac Pro does not have [yet], provides dot clocks up to 600MHz (although above 340MHz, they are all divided by 4) and allows "up to 4k60" for pixel encodings of RGB444, YCC444, and YCC422. The new standard also allows 4k50/60 to use YCC420, which sacrifices some color information (known as 'uses chroma subsampling') but allows the data to be transferred at the same rate as 4k30. While "fine" for video--since it was probably delivered over BD/DVD or streaming at YCC420 to begin with--it is not fine for you computer's output.
I just got a 4k TV because I was tired of my dual 1920x1200 DisplayPort monitors after coming from the original 30" Cinema display of 2560x1600. Specifically, I used to enjoy >1080 pixels tall. But here's the problem with the 4k TV: while it has HDMI 2.0 inputs, the MacPro has only HDMI 1.4 so the output is limited to "up to 4k30". Moving the mouse is laggy and not smooth as it would be if the display were 60Hz. Furthermore, the MacPro is not offering me a choice between UHD or C4K--both of which the TV supports--and is instead defaulting to the largest resolution of C4K. This means the refresh is only 24Hz. And that's why I'm in the forums today--to see if there's a way to get my output to be UHD, but at 30Hz.
In a couple months, several companies will be selling DP-to-HDMI2 dongles that will support 4k60. So I am holding my breath until then.
Now, to specifically and accurately answer your question: Out the current MacPro's HDMI 1.4 port, you will get the highest resolution your TV (called the Sink) will support. If your TV has C4K24, then that is what will show up. If your TV does NOT have that, but has UHD24-30, you SHOULD get UHD30. If your TV ONLY has UHD24, then that's what you will get. If you get a TV, the chances are really, really good that the panel will have 3840 pixels across and 2160 lines down. In this case, you want the Mac to output that resolution and put the TV into pixel-for-pixel mode so every input datum is mapped to a single display element. Since most displays overscan, the Full mode will expand the incoming data from 2-5% which can eliminated the crispness (and also cut off the extremes of the Desktop). Also, if you are outputting C4K (like I am) AND you have switched to P4P mode, the horizontal dimension is shrunk by 6.6%.
If any of this is unclear, just reply. But I will say that this 40" TV is really useful, and once it is running at 60Hz...bellisima!

Mac Pro 2.66 Line Out not functioning.

One of our Mac Pros on display here has a set of Altec Lansing speakers attached to it, but the line out on the back of the Mac no longer works (it did at one time). I've double-checked the settings and there is no audio coming out of the ports. However, I switch the cable to the headphone jack on the front, and boom, instant sound. Dunno why.

This should fix your problem.
1.1. Trash file com.apple.BezelServices.plist in your Home > Library > Preferences folder.
1.2. Empty the Trash.
1.3. Either Log out then log in, or restrt your Mac.
1.4. Check the volume keys' functions a few times in the hours after performing the steps above.
2. More than likely, an errant Startup or Login Item maybe the cause. Perhaps some third-party utility you may have
installed to control iTunes?
My "Troubleshooting Startup and Login Items" FAQ can help you pin that down if such an item is causing the problem.
3. If none of the above sorts it out, after the problem occurs, immediately check these Console logs for additional clues.
Good luck!

Mac Pro Display Issue HELP!

Hello Everyone,
Lately i just bought a new mac pro. recently i have been doing some video projects in final cut pro 7 (i know its outdated lol) in the video preview it seems that the video has some distortion to it, meaning the the video has a skewed effect to it of some sort. I upgraded from a 2009 iMac which i have never noticed this issue before! I don't think that it would be a hardware issue.. heres my specs:
3.33GHz 6-core
12 gigs of ram
ATI radeon 5770 1gb ram
Monitor: Samsung SyncMaster SA300
I think that it may be the monitor.. as i soon plan on upgrading to a cinema display.
If anyone has and idea what may be causing this unusual issue that would be greatly appreciated!
Thanks in advance!

I cleaned out my mac with compressed air, it was dusty, but the display flickering happened again.
So I followed your advice and installed:
Temperature Monitor
http://www.bresink.de/osx/TemperatureMonitor.html
Which showed that my memory module 1B and 2B were 70 - 75'C(160 -167'F). There was no reading for the graphic card so I couldn't tell if that was over heating.
Then I installed:
smc fan controller
http://www.macupdate.com/app/mac/23049/smcfancontrol
and increased the memory_cpu fan speed which lowered the temperature of the ram to 60'C (143'F).
I even changed this ram's placement and put it in different slots.This ram was the same temperature in the new placements.
Also this is the kingston 2gb ram without heatsinks. Ive used it for 1.5 yrs, and this is the first time its giving me these problems.
Do you know how I can check if the graphic card is over heating? or is the problem just with the ram?
Thank you for all your help!

Mac Pro Display Issues

I am trying to use three monitors with a Mac Pro with a default Radeon 5770 graphics card, but I am coming across many issues. First, I had to find out that you needed two dual-link DVI adapters if you want to add three monitors. After purchasing one adapter from StarTech for a 30" Dell monitor however, the display is having many issues.
When I first turn the computer on, the display shows "snow". I have to turn the display on and off, but sometimes even this does not get rid of it. Also, the screen will not wake up when the computer wakes up from sleep, although the other DVI monitor attached works perfectly. Finally, the screen will often go into periods of complete black. I can still move the mouse on the other screen, but it jumps around and skips when I move it.
If I want to resolve this issue, should I:
1) Go with Apple's dual-link adapter instead of the StarTech one I am currently using
2) Upgrade the Mac Pro graphics to either the dual 5770 or the single 5870
3) Replace the large dell monitor with an Apple Cinema Display
Or, would none of these solutions even help if this is an unsolvable problem.
Any advice would be greatly appreciated.
Thanks!

That is not quite right. Strictly speaking, it is not three dual-Link adapters that are required, but all adapters must be ACTIVE, POWERED Adapters.
Apple's solution requires their Daul-Link adapters because those are the ones with a USB lead to pick up even more power.
Your initail query tlaks of wanting to connect three monitors, but you have only provided connection details for two.

Mac Pro display 1080P on HDTV

Hey there, I just got a new Bravia 46" HDTV that can display 1080P, I connect it to my Mac Pro via DVI to HDMI, and The highest resolution is 1080i (interlaced), and the picture is really clean while static. But it looks cruddy when windows, objects, or video moves around. I then plugged in the HDTV via VGA at 1080 (Doesn't specify if it's interlaced or not), and the picture was incredibly smoother. My question is can you get native 1080P From DVI to HDMI on a mac pro?
Thanks

doesnt seem like it. are you using the Ati X1900xt video card? even the nVidia 7300 card doesnt seem to support that natively..especially on high-def monitors, excluding the Apple Cinema Displays (23" and 30"), i got odd scan lines using HDMI>DVI cabling but with VGA its sharp, clear and (better) and im not using a hdtv, its 1080p 28" monitor. but im to assume its similar to a hdtv.
HOWEVER though, when i hooked up the screen to my macbook pro using the hdmi-dvi cable and plugged it into the dvi port, no scan lines at all (theyre not very visible except on dark grey backgrounds - think in preview when you maximize the window and that dark grey background)
perhaps its a ati card issue (though in Windows i dont experience any of that, so i have no idea honestly)
iam going to assum at this point its a OSX thing, and its a profiling issue within OSX?
but depending on the system configuration it seems that mainly the labtops and mini's have had better luck with High-def 1080p monitors.
id like to know more if you find out more helpful information too.
goodluck =D

New Mac Pro display issues with Thunderbolt display

When connected to a 27inch Thunderbolt display after a while I get vertical blue lines on the display. If I plug my Macbook Air into the screen, after a while the blue lines clear. How do I find out if it's the Mac Pro or the Display?

Thanks Turbostar, that's exactly right, it takes about 30 minutes having the Air plugged in and the stripes disappear.

My Mac Pro display setup for photography

I am a photographer and a recent refugee from Windows. I’m using my new Mac Pro to manage and process about 100K images and other digital assets. I’m especially pleased with my system’s display configuration. Here is what I’ve got:
I’m driving my displays with the NVIDIA GT 120. My main image viewing display is a 21” Eizo Color Edge LCD (CE210W). It has a wide color gamut and is more than adequate for my needs. I wanted a second display but was leery of the Apple Cinema units – a lot of comments on this forum and other places seemed to indicate a lack of quality control. Nevertheless, I got the 24” Apple Cinema Display and it is working perfectly.
I calibrated both units with the i1 Display 2 monitor calibration hardware. I ran the i1 Match software for calibrating the Apple display and the Eizo-supplied software for calibrating the Eizo (it stores calibration settings in the monitor’s hardware).
Opinions about monitor calibration settings are like belly buttons – everybody has one. Here are mine:
white point – 6500 K; gamma – 2.2; luminance – 120 CD sq. m.
With both monitors calibrated using these settings, my standard reference image looks practically identical on both units. That is reassuring.
I do not doubt that some people are having problems with the Apple Cinema display. But mine is working perfectly… so far. It is an essential component of a very nice system.
BTW, if you want to hook a 24” Cinema Display to a Mac Pro then you will probably need a display cable extension (Apple picked a curious way to cut costs). I got my cable extension at MonoPrice.com for $6.

Make a "Genius" appointment at an Apple Store to have the machine tested. Back up all data before you go.

Mac pro display shows lines

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