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Old 10-05-2010, 01:54 PM   #1
jnostern
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Screen fades to Black and white with Ubuntu10.04


I have 10.04 installed in a dual boot system with windows 7 pro on 1 desktops and one laptop. Also dual boot on a desktop with windows xp and Ubuntu 10.04. The two desktops run AMD processors and the laptop uses an
Intel processor. On the two desktops after booting the screen will fade to black and white and then back to color. While in the black and white the computer is frozen. This happens using Firefox mainly and other programs. It never happens using my laptop with the intel processor. Does Ubuntu 10.04 have a problem with AMD processors? It does it so much it is hard to do anything with the and desktop computers, but I have never seen it happen on my intel laptop. Thanks for any help.

Last edited by jnostern; 10-06-2010 at 08:02 AM.
 
Old 10-05-2010, 02:27 PM   #2
malekmustaq
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Quote:
I have 10.04 installed with windows 7 pro on 2 desktops and one laptop.
Do you mean you run ubuntu with/above windows 7 through an emulator?

Quote:
The two desktops run amd processors and the laptop uses and intel processor. On the two desktops after booting the screen will fade to black and white and then back to color. While in the black and white the computer is frozen. This happens using Firefox and other programs. It never happens using my intel laptop. Does Ubuntu 10.04 have a problem with amd processors?
No.

Quote:
It does it so much it is hard to do anything with the and desktop computers, but I have never seen it happen on my intel laptop. Thanks for any help
What architecture is the desktop, 64 or i386? At what stage do desktops turn black and white and freeze?

Please state the problem clearly as it is not easy to help when you don't help us understand the problem.
 
Old 10-05-2010, 02:28 PM   #3
malekmustaq
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Quote:
I have 10.04 installed with windows 7 pro on 2 desktops and one laptop.
Do you mean you run ubuntu with/above windows 7 through an emulator?

Quote:
The two desktops run amd processors and the laptop uses and intel processor. On the two desktops after booting the screen will fade to black and white and then back to color. While in the black and white the computer is frozen. This happens using Firefox and other programs. It never happens using my intel laptop. Does Ubuntu 10.04 have a problem with amd processors?
No.

Quote:
It does it so much it is hard to do anything with the and desktop computers, but I have never seen it happen on my intel laptop. Thanks for any help
What architecture is the desktop, 64 or i386? At what stage do desktops turn black and white and freeze?

Please state the problem clearly as it is not easy to help when you don't help us understand the problem.
 
Old 10-06-2010, 02:08 AM   #4
jnostern
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I run the computers as a dual boot system. One of the desktops is a 64-bit and the other is 32-bit. I cannot think of any propretary software that I have on either system. the fade to black and white starts almost emediately after the system is fully booted. I use Firefox the most so that is where I notice it. I can't really use it now as it happens most of the time. While faded to black and white I can do nothing with the computer. I am running 32-bit Ubuntu 10.04 on both all 3 computers. The only difference I can find between them is the AMD processor which has the fade to black problems and the Intel processor which has no problems at all.
 
Old 10-10-2010, 03:53 AM   #5
martinbc
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Hi

My laptop sometimes fades a window down to very subdued colour, almost looking black and white.
This happens when the processor is so busy it has insufficient resources to process the screen, when the overload has finished the colour returns.
The other cause I've seen for this fading is when the screen cannot be processed because the program has locked up in which case the colour never returns.

Martin
 
Old 10-15-2010, 11:35 AM   #6
jnostern
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laptop fades to black and white

What type of processor does your laptop have in it? Intel or AMD?
 
Old 10-16-2010, 04:35 AM   #7
martinbc
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Hi

My laptop has an AMD Turion 64 X2 Mobile Technology TL-58 running at upto 1.9GHz, I run the 32 bit version of Ubuntu

Martin
 
Old 10-18-2010, 05:45 AM   #8
jnostern
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So everything I've seen points to the AMD chip.
 
Old 10-19-2010, 02:17 AM   #9
martinbc
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Hi

I'm not sure that what I've seen is a display problem to be fixed, I had just assumed that the fading effect was an indicator of the state of a program behind the window.
It seems to well controlled to be a fault.

Martin
 
Old 10-19-2010, 11:33 AM   #10
tommcd
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Quote:
Originally Posted by jnostern View Post
So everything I've seen points to the AMD chip.
The fact that you have an AMD CPU is not the problem. My desktop has an AMD Athlon64 3200 CPU and I have never had this problem.
How did you install Ubuntu? Is it a hard drive install? Or did you install using Wubi?
What graphics card do you have? If it nvidia or ATI, have you installed the proper drivers?
If you have desktop effects and or compiz enabled, try turning them off and see if it helps. Also disable the screen saver.

Last edited by tommcd; 10-19-2010 at 05:59 PM. Reason: correct a typo
 
Old 10-19-2010, 03:00 PM   #11
martinbc
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Hi

I hadn't seen the greying screen for some months so I decided to force it.
I ran Stellarium for lots of screen access; three virtual computers with Fedora, Haiku and ReactOS to load the processor; Thunderbird; half a dozen instances of web browsers and a disk intensive Perl program I wrote. Then I flipped between the windows.
The result was that different windows greyed at different times as they stopped being able to communicate with the programs they were linked to. Left alone the windows came back to life one by one as each managed to re-establish contact.
Conclusion, the greying just shows the state of communication with the underlying programs.

Different computers will be able to cope with differing loads.
What speeds are the processors in your desktop and laptop and how much ram have they?

Martin
 
  


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