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Re: My system has Flashbacks?



On Wednesday 14 January 2004 8:22 pm, Christian Schnobrich wrote:

> What I don't understand is how the picture manages to come back. Or
> rather, in which forgotten deeps of my video ram it manages to
> survive. Isn't the video hardware being initialized first by the
> chipset, and later when X comes up to show me the gdm login? Not to
> mention the fact that there are lots of different stuff being
> displayed before this 'ghost picture' makes it's reappearence.

The contents of video ram aren't initialized by the hardware. They just 
come up in a random state are and just going to be overwritten--why 
would the video card both to zero it out? In this case, the contents of 
video ram just happens to be the "ghost picture" you are describing 
until it gets overwritten. The image in the video ram will persist 
through a reboot because there is nothing actively destroying it's 
contents.

-- 
Wesley J. Landaker - wjl@icecavern.net
OpenPGP FP: 4135 2A3B 4726 ACC5 9094  0097 F0A9 8A4C 4CD6 E3D2

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