h a l f b a k e r yIt might be better to just get another gerbil.
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OK, so this isn't a hugely Earth-shattering idea, but it's basically that when the monitor goes into standby or is turned off, it sends a signal to the graphics hardware to save the display as a PNG to RAM or backing storage (security problem there), which then completely turns off subject to not overheating.
When the monitor comes back off standby, it reloads the image.
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Except that on Windows XP at least, when you wake up the computer again you see the logon screen. Not what the old screenshot shows. Making the screenshot useless. |
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//Except that on Windows XP at least, when you wake up the computer again you see the logon screen. Not what the old screenshot shows. Making the screenshot useless.//
That depends on your settings. |
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Indeed. I've never had a PC set up that way. |
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The image in the video ram is only of use to the DSP that refreshes the monitor. Software apps use their own buffers. |
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//The image in the video ram is only of use to the DSP that refreshes the monitor//
I thought that in most architectures, it was the DSP (or graphics processor) that wrote into the video RAM, and a fairly simple address-generator and state machine that reads it out to refresh the monitor. |
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It does mean, though, that instead of bothering to do that you could just turn the hardware off completely after it got cool enough. Is that done already as well? |
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OK, thanks. I got the following: |
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S0 -> D0
S1 -> D1
S2 -> Unspecified
S3 -> Unspecified
S4 -> D3
S5 -> D3 |
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As a certain relative once said, "This means nothing to me". I have no idea what to make of that. It's an ATI Radeon 9700 if that helps. |
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[copro], yeah that's what I meant, although that technically is still a type of DSP. |
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