MBP15 Desktop Colours Inverted???

Boss Man has been fighting this for about a week on his Mac Book Pro 15in
He uses a external 20 LCD Display as Primary monitor, and it has been working FIne foe 3 months... now in the last week when he starts the MBP and his desktop flashes up... it automatically get inverted ie the desktop colours and menurs and dosk are normal for 1/5 a second then flick to an inverted colour scheme!. When Boss man plugs in his External monitor, both wscreen flick as monitors are refreshed and Ext now is Primary, but desktops are still have inverted colours.
zapping the PRAM has no effect.
Loggin off gives the Login screen with normal colours but when loggin back in the desktop colours are inverted again...
So yesterday I did this fix... I created a new account and used that... well this works display colours do not invert :Yipie: but there is some time and pain involved when moving accounts due to the masses for files stored and permission that need to be set on folders etc.
So to me this seems like some corrupted Diplay settings.
My question is What display setting files do I trash to reset the Displays so If this happens agin It will be a 1 minute fix.

OK my boss came back from a conference and when I asked what how the display issue is he said it was not the Black on White as sugested...
Close but no Cigar...
In fact it is the Universal Access -> Display -> Enhance Contrast Slider
It seems tha Enhance Contrast Slider will not stay where you set it.
It always wants to be set to Maximum - and this gives us the Inverted display look. When setting the slider to anything else then you logout-login or reboot the screen is inverted and the slider is set to maximum again.
OK... so which Preference (.plist file) can I delete to clear this?

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Microsoft Lifecam VX-500 and...inverted desktop colours.

Today I got an MS Lifecam VX-500 webcam for my old laptop . As soon as I plugged it in, it was immediately recognized by the Arch kernel (2.6.30-ARCH ) and the appropriate driver was loaded.
dmesg:
uvcvideo: Found UVC 1.00 device Microsoft LifeCam (045e:074a)
input: Microsoft LifeCam as /devices/pci0000:00/0000:00:03.3/usb1/1-5/1-5.4/1-5.4:1.0/input/input13
When I tried to capture the camera input (by asking VLC player to display the video from the /dev/video0 device) , it refused to cooperate since apparently I was not a member of the user group "video". As soon as I added myself to the group, the camera image displayed perfectly but all the colours of my desktop were inverted. When I closed vlc they switched back to normal. Later on I disconnected the webcam and tried to run skype. Immediately desktop colours were inverted. Same with amarok. When I removed myself from the "video" user group everything came back to normal!
Any ideas?
Thanks for reading this
Dimitris

Szia!
My xorg version is 1.6.2
X.Org X Server 1.6.2
Release Date: 2009-7-7
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.30-ARCH i686
Current Operating System: Linux myhost 2.6.30-ARCH #1 SMP PREEMPT Mon Jul 20 11:20:32 UTC 2009 i686
Build Date: 18 July 2009 08:27:13PM
My desktop environment is KDEmod 3.5.10
When I run vlc, skype or amarok from the command line , no errors appear but the colours become inverted. Also, when I minimize the window, colours get temporarily back to normal .

Screen colours inverted, also flickers back to normal

Model: HP15-N096EA
When the laptop is turned on the screen colurs are inverted i.e. blue becomes orange, white becomes black etc. at times it flickers back to normal colours i.e blue shows as blue etc.
I have checked magnifers invert colours isn't turned on but when I do turn it on the inverted colours switch to normal colours obviously. There is also a vertical shimmer like every other vertical line is missing or phases in and out.
I have booted into safe mode to see if its a driver issue but the colours are still inverted, I've booted into the BIOS and again the colours are inverted and just to cover all bases I booted a live DVD of Mint Linux 17.1 and the legendary green of the mint distro was a lovely lilac. I've also tried high contrast i.e. Left ALt + left Shift + Print Screen.
My feeling is its the graphic chip or the monitor and I'm hedging more towards the monitor. Tomorrow I'll do a screengrab to see how that comes out and will also connect to an external monitor to see if the flicker and shimmer is still present.
Considering this is literally a month and 6 days out of guarantee it pretty bad, I would have expected a bit longer from a laptop before it started failing.
Update from Yesterday: I did a screengrab from the HP using the snipping tool in windows 7, this showed the colours inverted i.e. negative, I saved that screengrab to a USB stick and opened it up on my Mac, the image showed correctly i.e. not as a negative.
This is the image that is displayed on the laptop, there is no colour inversion, none of the graphics settings appear incorrectly set, I did actually set all settings back to defaults.
This is the screengrab from the laptop as it displays from another computer, which, in my case was my Mac. The screen appears to be displaying correctly, hence the screengrab image below but for some reason it is displaying an inverted image - Its like there is an overlay on the screen.
Could the inverter be faulty?
This question was solved.
View Solution.

Hi @chubby_ninja ,
Thank you for visiting the HP Support Forums and Welcome. I have looked into your issue about your HP Pavilion 15-n096ea Notebook and issues with the graphics. If it shows while connected to a different monitor then it is not the graphic card, it is the LCD screen or the cable.
I would replace this as it is the least expensive. Display panel cable 732066-001 Page 97 of your manual. Or you could take the Notebook to a shop so they could test each of the cable and LCD screen.
You could call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link to get the support number for your region. They will be happy to assist you immediately.
Thanks.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

System Colours Inverted, what the heck?

I have a very weird problem. My computer (G4 400, OS10.3.9) is showing me all the colours inverted, a perfect negative. This is happening at a system level, it affects all the apps except watching a DVD. I tried opening an image in Photoshop and Inverting it, and that made the colour perfect (for just that picture.) I restarted the machine, and shut it down cold and started it up again. It starts up normally and then inverts the colours just after loading the OS. The machine boots up normally in OS 9.
The last thing the machine was used for before this happened was watching a DVD (that has played no prob before) . Did my kids hit some undocumented keyboard shortcut? Is it a virus? I hunted through any preference controls I could think of, and see nothing like Invert Colour. Help!

Even better, its a documented keyboard shortcut, for the Universal Access control switch to white on black.

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My LCD monitor is displaying EVERYTHING in inverted colours (desktop, websites, photos etc.) It just started doing this earlier today when I moved the laptop from my desk to the couch. Can someone tell me how I can fix this, or if there is a utility (for Windows XP) that enables my PC to invert colours (for the whole computer, not just for images).
I have adjusted display properties and checked High Contrast in Accessibility options. I have also tried PowerStrip and different magnifiers, and I have checked that my video and adapter drivers are up to date. I believe that this is a problem with the LCD screen and not with my settings. If it is a physical problem with the monitor then my warranty has run out so I would appreciate it if you can recommend the correct parts to buy to fix this or possibly a tutorial to show me how to open the monitor and fix it myself.
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Welcome to the forum, [b]prohyster[/b]
Try downloading one of so called "LiveCD"-s, for example [url=http://www.hiren.info/pages/bootcd ]hiren's[/url] , or PartedMagic or another program that can use 32-bit colour in non-windows enviroment (Linux is acceptable also as non-windows enviroment ) and check whether the problem persists. If colours are normal, the problem is in drivers or registry tweak, thus haven't hear about such thing ever.
Another (simpliest) way is to take screenshot and e-mail it to someone that owns a normal-colour-displaying comp. If the screenshot is clear (colours are ok), then problem is in your LCD and you'll have to have a pleasant date with service-centre =)
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Yeah, inverter cable sounds right. I don't think its the video card or logic board, for two reasons: (1) when the problem started, it was caused by moving the screen (it is now permanent) and (2) an external display is fine. To me it seems the likely fix is a cable replacement... with a screen replacement a possibility I suppose. We will see. Its terrible to have something like this when you've owned a machine 3 weeks, but hey, it happens.
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MBP15 Desktop Colours Inverted???

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