My G5 is booting up in 8 or 16 colours

Everything goes as normal on start up, until the last few seconds when the desktop loads, then it goes from millions of colours to 8 or 16.
- I have tried reseting the pram
- I have restored OSX
- I have just tried rotating the screen in the display settings and it goes back to millions of colours, but when I restart or shutdown the problem comes back.
Anybody had the same problem? and how did you sort it? or anything else I could try.

Open the Universal Access pane of System Preferences and check all of the settings under the Seeing tab; these settings are specific to each user account.
(19062)

Similar Messages

Not used my G5 Powermac (late 2004) for ages. Only boots in with Installation disk, but colour dots on white screen and message comes up to reboot machine. Nothing happens.

Not used my G5 Powermac (late 2004) for about 2 years. Was going to set it up for the lads to do school work.
However it only boots in with Installation disk, but colour dots on white screen and message comes up to reboot machine. However nothing happens apart from me keep trying. Also the numerous fans get louder and louder and louder.....
Any ideas folks

Can you please provide details on the exact model?
For a start, the PRAM battery is likely dead. PRAM tells the computer which drive to start with, other basic information. Still, you can usually get the computer to start, though bad PRAM is unpredictable and could be stopping that.
Some computer models use software to control cooling fans. If there's no software commands they automatically go into high speed to prevent overheating. Your software obviously isn't loading, so runaway fans.

5 year old mac pro. Does not boot up.

I've tried the usual online trouble shoot topics but none fit exactly. I push power button on case, fan whirs into life (occasionally a bit noisier than usual), the power light comes on as does the monitor power light, but thats it. No boot up and no image or colour on screen. I've unplugged everything and started again but to no avail. Any ideas anyone please?

pull out all yur drives and try again and you should get "?"
then put an OS X DVD, or find a known good OS X drive
The SMC button for yours is near drive bay #4 and pcie slot #4 which takes just short 6 second depress

E-Mac boots up in black & white ?

When e-mac boots up it appears in black & white with sound.
If re-booted holding shift - p-r keys colour appears but no sound.

peteww,
Welcome to the Apple Discussions!
Check System Preferences> Universal Access > Seeing tab > Display settings and make sure you don't have 'White on Black" selected (possiblly along with "use greyscale" checkbox selected).
The keyboard shortcut for restting PRAM in command-option-p-r. Shift key restarts in Safe Mode.

Strange colours on screen after upgrading memory.

Hi all.
I bought a 2nd hand eMac from eBay and have just received a 512MB SDRAM module to upgrade the memory from it's current 384MB to 768MB.
On the first install I removed my 128MB module and installed the 512 module - No Boot. (beeping on startup)
I thought I'd try the 512MB module on its own - No Boot (again beeps).
I then tried just my 256MB module - Booted fine.
I then tried the 512MB module on its own and it did boot but this time the display colours were very off (the apple logo in Tiger was pink for instance)
Last of all I took out all ram and reseated it all - Success finally.
Now my questions are:
Were the beeps a memory error warning (I assumed they were)?
Is the display issue possibly related to poorly seated memory?
I do have big hands and found it difficult getting the ram in the eMac, especially with the sharp(ish) mesh on the underside of the eMac.
I feel this may be related to me seating the memory poorly but that time it booted with the colours all screwed has me worried in case something more is wrong.
I'm currently testing the memory with Remember and all is fine so far (I'm up to the 256 block sequential test so far)
Thanks for reading and apologies for the long post!

Thanks for the suggestion srojtas.
The eMac has been running fine since posting this and completely passed the Remember memory test. I also tested it by filling the memory up by opening many apps and it didn't crash at all there either.
The eMac didn't come with a hardware CD sadly, so I can't test it that way!
I feel now it must have all been due to me not seating the memory correctly.

Satellite M30: coloured lines run up and down on display

Hi there
Ive got a problem with the display on my Satelite M30. I can boot into windows fine etc but coloured lines run up and down my display as well as general artifacts. I cant even install nvidia drivers without a blue screen.
The strange thing is that if i apply pressure to the left side of my touch pad i can instal the drivers and everything is fine! Release the pressure and the computer crashes. Ive opened the laptop up and can find nothing that could be causing this.
Any insight here?
Maki43

Hi
You could check if the problem is related to the LCD monitor or to the graphic card.
Try to connect the external monitor and check if the lines appear on the second display.
If the lines does not appear then the graphic card should be ok.
Did you try to install the graphic driver from the Nvidia website??? Such drivers are not designed for the usage on the Toshiba notebook. You have to use the own Toshiba graphic drivers because the drivers supports an overheating protection.
If the temperature increases to the higher, critical level the Toshiba drivers will decreases the graphic card performance.
The other graphic drivers dont support such function and therefore the graphic chip can overheat!
Anyway, I think also the technician should check the notebook

Apple Studio Display 21inch - calibration fails

G'day all, I've reviewed the topics on this display and none seem to fit my problem. Further, I'm convinced that it's not a display problem but an OS Tiger 10.4.11 problem but I reckon that this is the forum that will be best suited to answer.
In essence, the problem is that a get an overly white screen with very bold colours - as if the contrast and brightness is on steroids and I cannot get past the first page of the ColorSync Assistant. This condition occurred as a result of allowing a service technician to use my Mac to set up a satellite modem - you'd hope that technicians would be more responsible . . . . .
Anyhow, as I said, I'm convinced that the problem has more to do with OS 10.4.11 than the display as this works perfectly with another user. Specifically, the technician was logged in as PowerMacUser (isn't that original?) and that is the user which gets a problem display. If I log in as another user (i.e. PowerCenterUser - yes! there's one of these on the network) then the screen is normal and I can calibrate the display. So ColorSynch and the Studio Display are working.
But when I log in again as PowerMacUser nothing has changed. I did make sure that the color profiles in the Computer/Library/ColorSync/Profiles/Display were the same as those used for PowerCenterUser even though they are global, but that didn't make any difference. And I have tried to find out where user-specific data is used to modify display profiles but without success.
I have a suspicion that it may have something to do with a file named <boot> but I won't pursue this unless I have a prod to so do.

This is an update. I'm a bit impatient so I got up at 02:30 and did some more research.
I found that the file boot.efi was still in my trash (OldUsers . .System>Library>CoreServicesboot.efi) and followed BDAqua's excellent advice in regard to this (see http://discussions.apple.com/thread.jspa?messageID=11661635&#11661635).
Thus I verified both discs in the PowerMac,did a Safe boot - which failed to correct the colour problem. I then reinstalled Mac OS 10.4 - which failed to correct the colour problem and I'm now in the process of bringing this up to OS 10.4.11.
The only approach that I can think of now is to create a new user since users other than PowerMacUser (see previous post) do not experience the colour problem.
Any, more creative, ideas would be welcome.

[Repost] DisplayPort HDMI Colour Problems

This is a repost from the MacBook Pro forums - hoping someone here might be able to help
I've got a late 2011 MacBook Pro (with the Radeon 6770M card). When certain conditions are met:
1. The machine is booted with the lid closed (it sits in a BookArc stand);
2. It is connected to an external display via the DisplayPort connector to an HDMI display;
3. It is booted into Windows under Boot Camp; and
4. The laptop lid is opened after boot.
...then the colour goes all... screwy. Here's what I mean. First picture is what the display colour should look like (as shown on the external monitor). Second picture is what it looks like on the MBP's inbuilt screen.
This is driving me bananas. I've tried a couple of different things:
1. Boot Camp 4.0 drivers;
2. Boot Camp 4.1 drivers;
2a. Boot Camp 5.0 drivers;
3. A different monitor cable;
4. A different external monitor;
5. A complete rebuild of OS X and Windows;
6. AMD native beta drivers (13.5).
Nothing's fixed it. I used to have a similar MBP, but with the 6750M card and that worked fine with the same connectors/stand/monitor/etc. The workaround is to boot it with the lid open, which is kind of a pain (in a first-world-problems kind of way).
I'm guessing there's a magic setting inside either Boot Camp control panel or drivers or even Windows itself that controls how it behaves with external monitors and colour settings and stuff like that, but I can't work it out.
Help?

I have also tried Boot Camp 5 (5.0.2) drivers, no dice.
And spent hours mucking about with the Catalyst Control Centre for things like pixel colour format, and assigning different profiles using Windows Colour Management.
I'm getting the strong feeling this is something quite specific to how the card is initialised in certain states, and at a level low enough to be hidden from the user.

Windows no longer boots up, paging file error

I just reinstalled windows on my mac last week because until now I had been running the old beta version of boot camp.
Just a few days ago I started getting blue screens every so often and it happened again (twice to be exact) yesterday, however one of the times it booted up and informed me I might want to change my paging file size. Not quite sure what this was I went and found the paging file option in settings and found it was clicked on a set size...so I figured I'd set it on the option that lets windows decide for me hoping this would fix the blue screen problem.
I shut down my computer later that night and now windows won't get to the desktop.
When I start it up normally it runs the system check (which I cannot skip for some reason) which gets to 84% and then says \windows\Dump3865.tmp is cross-linked on allocation unit 1731772
Above it it mentions there is an invalid size for my page file.
I tried booting it up the in safe mode multiple times and every time it generates a list in dos and stops on windows\system32\Drivers\mup.sys
I really don't want to have to reload windows again. Is there anyway to skip the system check (it says press anykey, but that has never worked for me) or any other way to get my paging files back to the way they were?
Thank you.
Oh I'm running leopard with windows XP professional on a macbook pro (last years model) if that helps in anyway.
Message was edited by: Tommmmm

A. run chkdsk
B. What happens if you boot from XP CD and Repair System
C. system file checker - from command "sfc /scannow"
http://www.informationweek.com/news/windows/showArticle.jhtml?articleID=18530125 1
http://windowshelp.microsoft.com/Windows/en-US/Help/f768809f-ed90-415f-a83f-89b4 2108b3551033.mspx

Cannot install windows 8.1 on imac 5k - apple support says "Correct, that machine can't install windows" Boot camp fail

I have a brand new imac 5k, with 4ghz i7, 295x GPU, 3.1TB fusion drive. Bought the machine so I could dual boot - I need windows for VR Dev work.
I've spent the last week and a half on tech support calls with Apple Senior Tech agents, and Microsoft agents as well, and today have been told that indeed this machine cannot run windows 8.1. Apparently Apple engineering knows about the issue, but says the problem is microsoft's. Ugh.
The latest iteration of the issue comes when installing 8.1 onto an external thunderbolt SSD (without even using boot camp) - I go through the EFI installer, convert the drive to GPT, format it as ntfs, but when I select the partition to install onto, the installer says it can't find the partition it just created. Smuh?
I've also tried the install through boot camp. This installation actually worked twice, but the install was unstable. After booting back into osX, then returning to Windows, the windows install went corrupt and couldn't be repaired. Subsequent attempts to install windows yielded a flurry of different errors, including "windows doesn't support GPT in this mode" or "the disk is locked, please unlock the disk" or "MBR must be converted to GPT" (where once I converted to GPT, the drive could no longer be found, despite the operation completing successfully.)
At any rate, it's a huge mess. I'd happily return the machine for a different config, but the company I bought it from will only swap it for a similar model -- so I've spent a pile on a machine that does not function as advertised; apple says "too bad, talk to Microsoft." Microsoft says "too bad, we've never seen this, this is an apple issue."
Has anyone out there gotten windows up and running on an iMac5k with fusion drive? If so, did you have to go through a crazy maze to make it work?
Any help is appreciated.
Thanks,
MC

Michael Conelly wrote:
After much gnashing of teeth, and a half dozen support calls, I'd all but given up. I finally seem to have solved this though - sort of - by installing windows 8.1 on boot camp on an older iMac, then cloning the bootcamp disk to an external thunderbolt drive via Winclone. That worked seamlessly, sticking to winclone's instructions, and I can boot via EFI to Windows 8.1 on the new iMac. So far so good.
I usually install W8.1 via EFI by using DU and a Free Space partition. The 3TB Fusion is first split into the underlying SSD/HDD physicals. OSX and Windows OSes are installed on SSD via EFI (no BCA). The OSX part and half the HDD are then used to create a new CS volume. The other HDD half becomes NTFS for non-Windows OS files. The Hybrid MBR method is completely unsatisfactory with the 3TB Fusion drive.
How is the TB/Winclone image for performance of the OS (since pagefile.sys is also on the TB)?

I tried to install latest OS update. Recd error installing. IT tried to load the upgrade in Safe Mode. Now system will not boot up. IT says I have to do a clean install which loses all data.

After receiving an error when I try to install the latest update of OS-X, I took my laptop to oour schools IT dept. They tried to run the update in safe mode and then they got an error saying the system could not find the hard drive. Now they want to run a clean install which loses 1000's of docs and pictures. I have Block I exams in med school next Monday and all of my notes and slides are on that hard drive.
The IT dept took the hard drive out and tried to back it up and they said they other computer could not connect or find my hard drive.
Major panic....
I have Norton antivirus and have never found any viruses on the system. I also have a program called ExamSoft which some other students here have noted they had similar crashes. Not sure if that is the issue...

Several take home messages here:
always back up before you update.
always back up anything you don't want to lose. Kind of like flossing. Only floss the teeth you don't want to lose.
Norton is very, very bad software, and you should get rid of it.
You don't need antivirus software on your mac. Antivirus software on macs causes more trouble than it is worth.
Your hard drive may be failing and thus may not be salvageable.
You could try booting into the recovery partition and seeing if you can repair your hard drive.
If that doesn't work, then there is a small chance that a third party utility (like Disk Warrior or TechTool) might be able to fix your drive (if it is not failing).
If that doesn't work, you may be able to send your drive and a lot of cash to a drive recovery service and see if they can get your files off it.
In the mean time, get notes and slides from a (smart) friend.

Running Dual boot windows 8 and win 7 pro with xp mode installed!! I love it!!

It took over 2 days to figure out how to adjust the bios to get my win 7 pro DVD to boot and install dual boot on this GREAT MACHINE!!
Step 1: using diskmgmt.msc you have to shring the C partition. I shrunk it so I had 80GB remaining as unallocated space.
Step 2: You have to enter the machine Bios adn set the BIOS to Both and UEFI as first
Step 3: Connect your usb dvd
Step 4: Put your win 7 pro dvd in the usb dvd drive
Step 5: Reboot your machine and when it starts press F12 to get the boot menu and select the usb dvd drive then press enter
The machine restarts
Message on screen says press a key to boot from cd/dvd
Press space and it boots up the win 7 pro DVD
After files copy and load the setup screen asks to accept the agreement and where to install win 7
BE SURE TO SELECT THE 80GB location
Then follow thru the win 7 prompts to load it.
When the machine restarts you will see a dual boot screen with Windows 7 on top as first selection and Windows 8 below it as 2nd selection.
Make sure to hit enter with windows 7 selected
The win 7 installation completes.
You will see many items with drivers not installed dont fret.
You can load most of the drivers by highlighting the device in control panel/device manager and pick update driver then select BROWSE for DRIVER and be sure to put in drive D:\ which is now the windows 8 drive and hit search.
Many of the windows 8 drivers installed with no issue.
The Realtek driver was an exception .. goto to the lenovo site and pick the x100e tablet and download the LAN driver from there about (4MB). Copy it to flash drive and install it in win 7 from the .exe file. The driver for LAN will install sucessfully. The version of the driver is 7.46 something the 7.11 versions do not workl.
I have only 3 drivers that I could not find - 2 list as unknown and are related to ACPI or power management and 1 lists as USB controller but all the USB stuff works without it.
Be sure to either shutdown the system or sign out of win 8 when your done so you get the dual boot menu. If you shutdown while logged into win 8 the next time you start up it will go right to win 8 until you signout and restart.
Just to let you know an easy way to shutdown is go to the desktop and press ALT + FN + F4 and a shutdown menu comes up on the desktop.
Once win 7 pro is installed you can download the XP mode free from Microsoft and install it.
This is of course AFTER you have ACTIVATED WINDOWS 7 ONLINE with YOUR ACTIVATION KEY(you supply).
ENJOY! This is the BEST machine I ever had!

It's been many, many years since I don't do dual boot anymore. Don't find the reason to do it, either. Different kinds of virtualization should be enough. Anyway...
dfw1417 wrote:
It took over 2 days to figure out how to adjust the bios to get my win 7 pro DVD to boot and install dual boot on this GREAT MACHINE!!
ENJOY! This is the BEST machine I ever had!
WHICH machine?
Cheers.
If I helped you, please give me some kudos! ^^

When I boot up it hangs on the login screen for awhile, why?

I have a mid 2011 Macbook Air 13". It came with Lion but I recently updated to Mountain Lion. When I wake the laptop from sleep everything is fine. If it's been awhile since it slept (a couple of hours), the login screen hangs. What happens is that it boots like normal and looks like everything is correct, but it won't let me type in my password. After 10 seconds or so I can see a cursor come up but it won't let me type (but anything I do type at this point will later fill in the field after another 2-3 seconds or so). One other thing that's weird is that when the screen first comes up it shows the battery percentage from when I put it back on the charger, then after everything catches up, it changes to show 100%.
I hope I explained the problem well enough. Basicly a "wake from sleep" is fine if it hasn't been long since the laptop slept, but if it's been awhile it takes about 15-20 seconds to boot up.
Ideas?

Here are some suggestions based on my recent issue with unable to get Mavericks up after upgrade - The Apple geniuses just simply couldnt figure this one out...despite it being in their shop for 3 days (They probably did not look at it...and asked if they can just wipe out everything and install fresh...i had said NO):
Restart computer and hold Cmd+V when you hear chime. This will start the computer in Verbose mode.
See the messages and see where the system boot fails. In my case, it was some backtrace IOStorageFamily issue with com.paragon-software.
Google may be able to solve your Apple issues - just type the error message in and see if you get any useful suggestions. in most cases - this would be some faulty 3rd party drivers.....
In my case, it was something stupid i had probably installed....I had to boot to safe mode (Hold Shift at boot chime) - open Terminal, delete the folder com.paragon-software.kext from System/Library/Extensions....that fixed the problem. Mavericks is working great now....
Let me know if your debugging thing works...

Apple Mini-DVI to VGA Adapter Problems in Boot Camp / Windows

I currently run Windows XP SP2 on my MacBook and recently purchased the Mini-DVI to VGA adapter so I could hook up the MacBook to an external projector, monitor, or TV to display what's on my Windows screen on the external device. However, when I connect it to any external device, it just goes nuts and sporadically continues to make the hardware connect and hardware disconnect sounds and doesn't allow for external output of the screen. Any suggestions...? Thanks!
Marc

I think I solved this problem.
It was in issue for me. My second monitor would only display the Windows XP screen when it was loading, then it would black out. I couldn't even move my mouse arrow to the other side. Then I fixed it, here's how (running Windows XP SP3):
1. Start > Control Panel > Appearance and Themes
2. Display
3. Go to tab "settings"
4. Double click the blue image with the "2" inside it. This is the second monitor, adjacent to your first, or primary, monitor. The blue box may be a desaturated, greyish blue, meaning that the monitor is disabled. Click it and it a box will pop up asking if you want to enable the monitor. Click OK, and then like magic, your monitor is resurected in it's Windows Glory! From there, adjust the resolution, and it should work perfectly.
This isn't a Boot Camp compatability issue, it's just a problem with the lack of familiarity that users of OS X have with using XP.
Have a nice day!
Message was edited by: BlakeTron
Message was edited by: BlakeTron

DVI To Video Adapter on XP using Boot Camp

I bought a DVI To Video Adapter for my MacBook pro. Though is works fine on the Mac OsX, when I tried to use it on Windows XP (using Boot Camp) all I got was a black-flickering image on my TV. Anyone… anything…? Thanx
MacBook Pro Mac OS X (10.4.6)
MacBook Pro Mac OS X (10.4.6)

I'm having the same problem.
It's gotta be some driver problem on the XP side.
I don't know if it's something created by boot camp when it creates drivers for the Mac.
The help i've found for the ATI Mobility Radeon X1600 doesn't describe the options and dialogs I'm working with very accurately.
Called Apple-- they can't support the issue. Turned me back to searching on my own. Boot Camp message boards/ ATI... bummer.
Someone needs to "Hero" us out.

My G5 is booting up in 8 or 16 colours

Similar Messages

Maybe you are looking for