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!

Similar Messages

I attempted to download X Yosemite to my Mac Pro. It timed out and would not finish. I cannot stop the website from believing it is still downloading. Help.

I attempted to download X Yosemite to my Mac Pro.
It timed out and would not finish.
I cannot stop the website from believing it is still downloading.
Help.

oatgeo wrote:
I checked the proxy and it should be OK. That's mean I have to try and try again until I get it from the slow servers.
Yes.

10.5.2, Mac Pro with AE Card, AEBS (not Gigabit) lost wireless connection

Since I upgraded to 10.5.2, I have been having issues with my wireless connection on my Mac Pro. Here's my setup - an 802.11n Airport Extreme Base Station (not gigabit one) with a 802.11g AEBS connected to it. the 802.11n is running on the 5GHz Spectrum only and does not share with 802.11a (so it's running 802.11n only). The 802.11g AEBS is set to run on the 2.4GHz Spectrum and is set to accept both 802.11g and 802.11b. The MacPro has an Airport Extreme Card running 802.11n. The 802.11n base station is almost next to the 2 base stations.
Every once in a while, my Mac Pro will get disconnect to the basestation, and when I go to the Airport Signal icon, I can see both my basestation. I just have to select it again as if all of a sudden, my Mac Pro forgot which basestation it is connected to and get totally confused. It is one thing if the signal to the basestation is gone (have experienced that a few times when I have the 802.11g base station), it's something else to just get disconnected for no reason. Of course, when I select my basestation again, everything works fine (not as if it has problem re-establishing connection). This is getting a bit annoying, especially when I am trying to backup my files only to have been disconnected from the basestation. This doesn't happen every time I backup my files. It happens in random and there can be a long time without having drop the connection and then it can drop the connection 3 times in 10 minutes.
Help!

I have read all the other post, but got no satisfying answer other than people saying Apple really screwed up with 10.5.2 and that doesn't really resolve the problem. Plus, it seems to me that most people's problem are with a 3rd party base station rather than an AEBS. My only other option maybe to down grade my Airport Card software, because I think the problem is with the Airport Card driver that's bundled with the Mac Pro, and frankly, I am not sure if Apple is ignoring the problem or working hard on it, but in either case, it's not fast enough in term of damage control.

Digital Audio In to Line Out Not working.

How do you route digital Audio in to Line out? I have a 2010 Mac Pro, running digital in and have validated it's a good signal. No sound through the line out.
In the interim, i've used Audio Hijack to route it through the line out with no issue. I'm confused as to why i must use this 3rd party product to route the audio. Any ideas, this can't possibly be a new problem.
Thanks!

I've had problems connecting my computer to my cable box as well. Comcast apparently disables some of the functions on its boxes. Call your cable company. It's most likely a problem with your box, not your computer.
Good luck and if you find the problem let me know.

Mid 2010 Mac Pro 10.6.4 Does Not Log In

This is both a MacPro question and an Avid ProTools question...first I need to get the Mac working again and then come up with a longer term ProTool solution....
I am at a new job where I am currently running ProTools 8 using a Digidesign 003 on a Mid 2010 Mac Pro running OS 10.6.4. There are two user accounts, and only one (the adminsitrator account) is marginally functional. It runs extremely slowly (five minutes to launch GarageBand) and the application icons in the dock do not display correctly. When attempting to log into the other account, after a few minutes a blue screen comes up and then it returns back to the log in screen.
I know that the computer would be compatabile with Mavericks OS 10.9, but I know that 10.9 is not reccomended for any Avid Product (even newer versions of ProTools).
How can I make the computer operational while still running OS 10.6? Do I need to upgrade to a newer OS and take on the expense of upgrading to a newer version of ProTools? What about compatability with the 003?

it shipped with an OEM DVD of special build of 10.6.4 but you really need 10.6.8+ at least, or 10.8.5. Depends on if your apps still rely on older PowerPC and Rosetta.
Software Update would have to be turned off it you are not already on 10.6.8 plus all the security updates and new Safari update and others.
I like to have a safety net, clone your system, take the clone off line, then make updates and changes. And have two such backup working clone systems handy. In some cases you can just partition one drive to do that.
Sounds like other issues. Invest in a 250GB or 500GB SSD for t he system. PCIe SSD card and SSD(s) for scratch and media libraries.
Make sure it has 24-48GB RAM.
ATI 5770 drivers really need 10.6.8.

Mac Pro USB ports and bluetooth not working

I have a Mac Pro (early 2008) Quad-Core Intel Xeon, 2.8 GHz, 4GB ram, Airport card, Magic Mouse. Suddenly the keyboard and wired/bluetooth Mouse are unavailable, so it is not possible to control the computer. The only way I can use it is by using Screen Sharing from my MacBook Pro - which is obviously pretty useless except for diagnostics! All the USB ports (front and back, as well as those on the Cinema Display - when connected) are dead. System profiler shows no problem with them, but also shows nothing connected. Bluetooth in menu bar shows as "Bluetooth: not available", and in system profiler shows as "No information found".
I've tried all the usual remedies. Powering off overnight with power cord disconnected, all peripherals disconnected, then booting up again. Holding in the power button for ten seconds when the power cord is disconnected. Obviously I can't reset the pRAM (because the keyboard is not recognised, even before the OS loads). The first couple of times I tried this process, it did bring back the USB ports, even the bluetooth became temporarily available, but soon disappeared again. USB ports died next time I rebooted.
However, in the last couple of days, the process produces no results. No matter how long I leave it disconnected, USB ports are not working and bluetooth is just not there...
I've checked for other threads on this topic, but most other people seem to have issues with either front or back USB ports, or even just one or more individual ports. My problems have only been with all ports or none.
Does anyone have any suggestions to get my MacPro up and running again properly?

Just waking this thread up again in case anyone has had any other ideas.
Since last posting, usb became functional again, (came back on a couple of hours after a restart) and as long as I kept the machine alive, usb would stay alive. Bluetooth came back on briefly, but for most of the time was unavailable. System profiler shows no problems and Console does not report any usb related errors as far as I can see.
After a recent restart, usb disappeared again, and despite numerous restarts and being left on for a couple of days (and subsequently left off for several days) it has not come back. When usb is not working, examining the system profiler (through screen sharing from my macbook) usb shows no errors, but also shows no connected devices. I can charge my ipod nano with any of the usb ports (front or back), so power does not seem to be the issue.
I can't reset pRAM (because the keyboard is not available at boot), but have reset SMC numerous times. Have tried other keyboards, and mice. No joy.
I seem to have run out of ideas. Any suggestions?

Mac Pro to Samsung HDTV - "Mode not supported"???

Alright, so I have just received my new Mac Pro in the mail yesterday and wanted to hook it up to my television - a 1080p Samsung (Samsung LN-T4671F) HDTV. I am using a DVI-to-VGA cable. I feel I should probably explain the entire situation so that it's all clear.
The first time I started the computer after plugging it into the TV, the Apple logo with the Loading, spinning thing (not the multicolored wheel) showed in beautiful 1920x1080. After loading, the screen jumped to a lower resolution for a second and then went black, finally giving me a "Mode not supported" error. Thinking it was just a little hiccup, I restarted the computer and after the Apple logo screen, it showed me a screen on how to put batteries in my mouse (or something along those lines, I didn't really look), and then it had me set up my wireless keyboard. After this, it showed me the WELCOME video and allowed me to log on to my computer and start using it.
After about 15 minutes, I was going through the system prefs and came across display. Thinking maybe I should lower the resolution to better see text, I clicked on a lower resolution around 1600xsomething. The screen went black and gave me the "Mode not supported" error again. I thought I could just wait a few seconds and if I didn't confirm the resolution, it would go back...but it never did. After trying to restart my computer a number of times and receiving the error message each time, I booted in Safe Mode, which I am in right now.
I went into the sys prefs and made sure the resolution was set to 1920x1080, which it already was, and restarted the computer. Error again. I went into the settings of my TV and went to PC and had it auto correct the resolution to the input. Error again. I have been running in Safe Boot since - no sound is annoying - and enjoying the display in full 1920x1080 (1080p)...so the set obviously supports it (and the manual says it does too).
My video card is an NVIDIA GeForce 8800 GT. What's most annoying is that it's pretty obvious that the display supports this resolution and yet won't allow it to work outside of Safe Boot mode.
Please help

Had the same problem with an AOC 1080p TV, trying to connect to it using VGA cable.
Ivan's earlier post clued me in to solution:
- Plug in the TV, get the "Mode not supported" message on the TV
- Open the Display Preferences, you should see the display preferences for the laptop "Color LCD" monitor. Click the "Gather Displays" button - this should bring the display preferences for the TV behind the laptop preferences window. Switch to the TV's display preferences window.
- In the TV's display preferences window, switch refresh rate down to 59.9 Hertz (your TV may need different refresh rate, but on mine I only get options for 59.9 or 60).
That did it for me!

Is this creative suite or leopard causing my mac pro to freeze, quit and not sleep?

I hav recently bought a high end mac pro and leopard and I am lucky if I get 30 minutes before the whole system freezes. Tried re-installing in a different hard drive on the pro - same problem. If I put the computer to sleep, 80% of the time when I return, it has shut down. Actions in CS3 are deleted. Everything is a bit random and I can not work it out. Running disk utility, from the computer and disk produces this:
ACL found but not expected on Applications/Utlities
""""""""""""""""""""""""""""""""""""" on Applications
""""""""""""""""""""""""""""""""""""" on Library
Permissions repair complete
All software is up to date. I do have some plug-ins that are supposed to be cool with this system.
Can anyone help or do I have to return this computer?

On 3/9/08 2:16 PM, in article [email protected], "[email protected]" <[email protected]> wrote: > Permissions repair complete > > All software is up to date. I do have some plug-ins that are supposed to be > cool with this system. > > Can anyone help or do I have to return this computer? Sounds like the logic board is malfunctioning, reading and writing in the wrong places to the HD. Try a Safeboot [hold down shift key] and see if the problem persists. If not, then you have a plugin problem most likely. Also, do this first: boot holding down cmd-S keys. When you drop into Unix, at the prompt, type fsck -fy keep the space between the commands. Let it run and see what happens, but because it happens on both drives, it sounds more like the logic board or wiring in the system is on the blink. If it is new, should be under warranty... Jeff ~~~~~~~~~~~~ Jefferis Peterson, Pres. Web Design and Marketing http://www.PetersonSales.com

Mac Pro 2009 - To keep or not to keep? Only running windows

Well, with values of older Mac Pro's going down, i'm now unsure what I should do.
In total I have 3 Mac Pro's. 1 for work at my father's house (2009, 2.26 8 core), 1 there for Testing and Guests (2006 2GHz dual core).
My third one, however, I keep here for gaming. It is fully loaded, SLIpatched. It currently uses a 5970, 2 SSD (1 for windows boot, 1 for steam games). It has 4GB of the original ECC ram and 16GB of Kingston HyperX. It is unable to run OS X at the moment, but only due to the OS X hard drive being removed and the 5970.
So my dilemma is this. I only use it for gaming pretty much, and I only use it under windows 7. It is NEVER used for tasks such as Video Editing, Servers, or any other things like that. It rocks... But because I enjoy upgrading its video setup a lot, its somewhat cramped PCIE spaces dont' allow for much for me.
So... I'm wondering if it's really worth keeping, or if I should just try and sell it, and then proceed to build a PC that does well enough for my needs. I understand Mac Pros are particularly good for work based things... And this one is used for none of that, so am I sort of just wasting it by only using it for gaming? OR should I just trade my Processor palette from my current mac pro in for a Single processor palette, and install a W3690?
What I'm thinking of building is an EVGA 4 way SLI X58 based PC. Dunno if i'd take the effort to hackintosh it though, so much trouble.
So what should I do?
Should I try and sell it before it loses more value, while also adding thigns to it to up the value, and build a PC? If so, what sorts of things should I consider adding to it to try and sell it for a better value despite its age? What value do you think I could potentially get for it?
Should I just trade in for a Single CPU board, and put in a W3690? (I already upgraded the firmware with the utility to the 2010)
Remember though, I currently have 2 other mac pro's I do use for work stuff.
Thanks all

Can only work with your work email if they enable IMAP support (most companies won't).
However, you can browse to Web Access via the browser and have full web support.
As for cases, there are hundreds out there. One of my fav manf. is here
http://www.vajacases.com/home/home_en.html?Prod=mobile-apple-iphone&ini=cap30ei& c=6&it=1&s=1
As for if you should keep it, well depends on what you want to use it for. It is not quite ready to replace a true Business phone, but great as a phone with constant internet access and WiFi support and iPod all in one. And in time (Feb 3rd party developers can make programs for it) more apps will come out that could make it better for Business.
As for returning it...well there is a restocking fee on the phone. Forget the terms of it though.
Message was edited by: DaVBMan

Mac Pro EFI Firmware 1.5 NOT installing (Yes, I RTFM)

Starting a new topic as the other one was marked 'SOLVED'.
MacPro5,1 2.8 Quad.
Firmware 1.5 does install before shutdown, but the progress bar doesn't appear when holding the power button. After the loud firmware beep, the chime follows immediately and the machine boots up. Software Update keeps prompting to do the update again.
Have been on the phone with Applecare for over an hour, who have no idea why this thing doesn't work...
Troubleshooting done so far:
-Zapped PRAM, Reset SMC
-Downloaded standalone installer instead of Software Update
-Freshly installed 10.6.4 on FW800 disk and tried installing from that install
-Disconnected all peripherals including 27" LED Cinema Display
-Downloaded standalone installer on another network
There is no progress bar appearing and the bootrom stays on version MP51.007F.B01.
Strange: in the Utilities folder there is a Mac Pro EFI Firmware updater app that displays a "file may be incomplete or damaged" error when trying to start it.
Applecare had no idea, second line support puzzled as well...
Any ideas ?

When you click OK for install, it'll do the little updater window, tell you it's optimizing, then shut down your computer.
You're in front of a shut-down MP 2010. You need to click *AND HOLD* the power button for a few seconds. It'll flash a few times, make a different tone and then you'll see the updater bar.
You cannot just power it up, you must click and hold until the little white power indicator light flashes.
Welcome to MP51.007F.B03
p.s., Why it drops the file Mac Pro EFI Firmware.app which is "damaged" etc, into /Apps/Util/ I dunno. It does that for me too, but firmware is updated. You should be able to hit Software Update now and not keep seeing the EFI update show up.
If you're clicking AND holding the power button AND see the white light flash multiple times (it takes a few seconds, keep holding down the power button), and it still doesn't work... then I dunno.

Creative inspire t6300 5.1 surround on mac pro 1.1, optical out to 5.1 audio gear (digital sound decoder).

Hi there,
Been searching and trying a lot but no luck so far. I have a surroundset Creative Inspire t6300
to be able to add some more fun to movies and a few games on my mac.
I own an upgraded Mac Pro 1.1 under Snow leopard, 2.33 gHz, dual processor, 8 core, 8 gb memory.
Even though it`s a piece for the museum, it works very well for designwork I do for work. No real need
to update for me, so....
As I understand, the optical out is standard 5.1. (By the way, the only other ports are the basic sound ports out
and in on the Mac). So after some research I found and got the 5.1 audio gear decoder. I connected this with
an opticle cable and used the 3,5 jackets from the surroundset to connect to (from left to right) cen/sw, (yellow
jacket) fl/fr (green jacket), sl/sr (black jacket) on the decoder. All perfectly understandable and it seemed to work well.
But when I tested with some of the testfile you find when googling on that, I think there is something wrong,
the typical surround effect is not there, it rather sounds more like stereo or even 5 mono`s.
I`ve tried Soundflower and JackPilot, but couldn`t get it right. With Soundflower I was able to choose 5.1 setting
(was not possible before) but testing it didn`t work.
There is an extensive test of the decoder on the net by someone who really is deep into the technics of it all but
no luck there either.
Back to basics: is it right that the optical out is truely 5.1 on the mac? With several tests the unit SFE does not react.
But when I play some music with iTunes, it works (loud and clearly :-)). Maybe I need a visit to the audiologist ;-) ?
Anyone?
tested with: http://www.youtube.com/watch?v=eL9-sIZRDHg&channel=alexnosenko
http://www.youtube.com/watch?v=sMh_zvCw6us
https://www2.iis.fraunhofer.de/AAC/multichannel.html

Hello John, I figured it was a signal issue. All the speakers fire and the sound is great. I was running the speakers thru a Dell PC with a Creative X-Fi Elite Pro, THX Certified, 7.1 soundcard using a fiber optic from the Mac Pro to the Z906's, it worked great until the Dell died!!! When I bought the soundcard from Creative I also bought the GigaWorks S750, THX Certified, 700 watt, 7.1 speaker system, used the speakers for 11 years and then the woofer/amp said "I QUIT" Creative quit making the speaker system and the sound card. The satellite speakers from the Creative GigaWorks speaker system still sound great (rated at 78 watt each) and are a little better speaker than the one's that came with the Z906 and the wattage from the 906 is sufficient to drive the satellites without any distortion. Thank you for addressing my issue, you confirmed what I suspected all along, just needed to hear it from someone with the same setup.
One last question, I purchased a Diamond Multimedia USB Soundcard, can't use the fiber optic(not supported by Mac) but the green, tan and black RCA's plug in and produces adequetly. When you plug your 906's into the Mac Pro using the fiber optic how do you set your speaker configuration? When I plug into the mac pro with fiber optic the 'Audio Midi Setup' does not seem to see the 5.1 configuration. Any thoughts there?
Carl

Mac Pro w/ Quadro FX 4500 not sending 1080p signal

Hi,
I've got a Mac Pro with an nVidia Quadro FX 4500 video card and I'm having a lot of difficulty getting OS X to send a 1080p signal to my high-end Sanyo PLV-HD10 projector via DVI. When I say 1080p, I mean 1920x1080 in progressive (non-interlaced) mode.
The trouble is OS X detects the projector as "LCD Monitor" and under "Displays" in System Preferences i'm given a maximum resolution of 1920x1080 INTERLACED, which is very close to, but not exactly what I want. I need this thing to send a non-interlaced signal to the projector, and I just can't figure out how to make OS X do that. I've tried using 3rd party hacks like "SwitchresX" and "DisplayConfigX" - with no success. BTW, I am fully up to date on "Software Update" and this is a clean install of OS X 10.4.8 (just got the machine a week ago).
I called Sanyo for support and they couldn't help me, because they don't make any software/drivers for their devices. They asked me to take the matter up with Apple.
The funny thing is, I've got Boot Camp running on this Mac Pro, and Windows XP Pro (SP2) is able to detect the Sanyo projector AND send a full 1080p signal to it. This tells me the hardware is fully capable of doing what I need it to do... The problem is OS X isn't detecting the projector correctly, and so it's not letting me push the correct resolution to it.
I'm not at all against hacks, via Terminal or otherwise, to get this working. ANY help is greatly appreciated. Thanks in advance.
--ashwini
Mac Pro Mac OS X (10.4.8)

You could mention that Nvidia is coming out with an FX 4800, along with GTX 285.
http://www.nvidia.com/object/productquadro_fx_4800_for_macus.html
The GTX 285 seems to still be under wraps but expected to come out in June. And nothing happens exactly when it's suppose to let alone on time.
Barefeats has most of the test comparisions but even the FX4800 hasn't seen the light of day. A) needs more work and new drivers and OS revision? is really being aimed at something for OpenCL to exploit perhaps.
G5 = Open Fimrware, Mac is now EFI

Mac Pro won't boot up, not even in safe mode.

Problem: Mac Pro having severe lag issues. Added more ram, removed Kona3, etc., nothing. Tried repairing with disc warrior but unable to repair startup disc unless booted from disc warrior disc. Won't boot up from disc warrior disc so set startup disc to the disc warrior disc. Now comp won't boot up, not even from safe mode. Any suggestions?

Boot from your OS X install DVD.
You always need to have a 2nd backup you can boot from, or an emergency (only) boot drive.
Disk Warrior does not have 10.5.2+.
If you can't do anything, zap pram, see if that helps. Or pull your drives and boot from your DVD. Setup OS X on a FW drive.
And of course, always always have at least two backup sets of your system; and sets of your data - so one set at least is always off line.
http://www.geocities.com/texas_macman/pram.html
http://docs.info.apple.com/article.html?artnum=2238
http://www.apple.com/support/macpro/
http://www.thexlab.com/faqs/datacorruption.html
Issues with OS X and with Installing
http://support.apple.com/kb/TS1541
http://support.apple.com/kb/TS1388

Mac PRO Desktop blank DVD will not eject keeps freezing. "LION"

Hi, my Mac pro will not eject the blank disc i inserted into the drive, I am running lion and it keeps trying to read the disc and makes everything freeze.
you cannot reset or shut down the machine properly unless you hold down the power button.
is their a Physical emergancy eject on the mac pro desktop or a way to get the diwc out?
Yes I have tried ejecting uning terminal and disk utility will not open becouse of the DVD drive.

You have added too much junk:
com.senstic.driver.PocketAudioDevice          1.1
com.logmein.driver.LogMeInSoundDriver          1.0.0
com.digidesign.iokit.DigiIO          7.4.1d0
com.digidesign.iokit.DigiDal          7.4.1d0
com.avid.driver.Avid_SCSI          1.2.0
com.SiliconImage.driver.Si3132          1.2.5
If you want Apple to address your problems, the first requirement is to reproduce the problem with no third-party kernel extensions present.
Most users find that when the eliminate the third-party kernel extensions, they eliminate the kernel panics.
The black screens could also be caused by your graphics card beginning to go.

2006 Mac Pro + NEC 3090 - grey screen not displayed during boot

I have a September '06 Mac Pro 1,1 (Woodcrest variant) hooked up to an NEC 3090 30" LCD monitor, running OS X 10.5.7. Previously, I was using an Eizo S2110W 21" LCD; turning the monitor and computer on would cause the following to be displayed (in order):
1. Light grey background with dark grey Apple logo with spinning thing.
2. Solid blue background.
3. Leopard wallpaper.
4. Log-in dialogue.
Since using the NEC, the grey screen is not displayed at all: the display stays blank until the blue screen is displayed, and then the Leopard wallpaper and so on. This is using the 2560x1600 native resolution of the display, and has occurred using both 10.5.6 and 10.5.7.
If I change the resolution to 1280x960 and boot, the grey screen is displayed. If I change it to 1600x1200, I get weird corruption on-screen during the period when the grey screen should be displayed; for some reason, this includes part of the desktop wallpaper I was using before I rebooted.
Resetting the non-volatile RAM using Command-Option-P-R works for the very first time I boot the computer, though the grey screen is displayed at very low resolution. If I reboot from the log-in dialogue immediately afterwards, normal behaviour occurs - i.e. the blank screen.
The upshot of all of the above is that if I want to boot into Windows, or install OS X (e.g. when Snow Leopard comes out), I have to remember to boot into my existing OS X installation, change resolution, reboot whilst remembering also to hold down the ALT/Option key. It would be much easier if I could do away with having to change resolution.
I have tried connecting the monitor to a PPC Mac mini at 1600x1200 (it won't go any higher), using Tiger 10.4.11 (not sure of exact version - the latest). At this resolution, the grey screen is displayed.
Using a '08 MacBook Air (first generation) and the supplied DVI adapter, also at 1600x1200, nothing is displayed on the NEC until I get to the log-in screen. This occurs if the NEC is set to be the primary display or the secondary one - the only difference is where the log-in dialogue is displayed. I am not familiar with dual-screen behaviour, so I can't say whether anything is supposed to be displayed or not (i.e. does the grey appear on both displays?).
I have been in touch with NEC Europe support on this issue, who suggested it might have something to do with the 10.5.7 release. I know this not to be the case, as it was occurring prior to 10.5.7 being released.
Any ideas?

Put more of your hardware listed in your profile.
I looked and don't see you list your graphics card anywhere.
Graphic card it came with was either X1900 (watch for heat and dust bunnies and clogged vent);
OEM 7300GT (seems unlikely).
You could have replaced either with 8800GT or ATI 3870.
Require 10.5.2+ ideally 10.5.6+.
Some problems cropped up with 10.5.7. 10.5.7 doesn't work on some (many) 3rd party displays and stay with 10.5.6 if necessary until it is fixed or resolved.
But you say it happens with 10.5.6 also, and was doing so before 10.5.7? which makes your problem somewhat different or unique.
Zapping PRAM or NVRAM reset obviously shouldn't be needed repeatedly. And your graphics card probably needs to be replaced, or test with another card to rule it out.

Mac Pro 2.66 Line Out not functioning.

Similar Messages

Maybe you are looking for