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#62701 13-Jun-2010 02:54
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Occasionally I am finding that all the windows on the computer start endlessly redrawing. Text in the active window flickers, firefox starts to lag to hell.

Last time it was volume control causing it, before that it was computer management, Before that something to do with one of the firefox profiles.

I am still seeing occasional total redraws happen when just using the computer. I think this is the source of the firefox not responding problems since it seems hardest hit (well it and outlook) when they have to redraw.

So is there any way to find what is causing the redraws, or even better is there a way to eliminate them altogether.

Not running aero since I cant really spare the gig and a bit that it ends up making dwm take, and have tried killing off dwm.exe as suggested in other places, but still see things redrawing every 10 seconds or so, not the constant that it was before but still enough to make the machine pretty close to unusable.

As expected with more windows open it makes the effect worse so I am trying to miminize apps, but even with just about 9 windows not minimized there is a noticiable 2-3 keystroke lag when it happens.

I am assuming that there is someway to find the source of the redraw messages, or better still just a way to block them totally.


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BDFL - Memuneh
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  #341122 13-Jun-2010 09:28
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Should we assume you have installed the latest and greatest video driver for your video card?



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  #341125 13-Jun-2010 09:43
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Sounds like you're running and old or dodgy video driver. What video, video driver/version are you running?


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  #341151 13-Jun-2010 11:24
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Involuntary autocorrect in operation on mobile device. Apologies in advance.

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  #341271 13-Jun-2010 17:48
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Could be that the explorer process is crashing and restarting ?

Anything in the event logs ?

Also found that a dodgy codec (video perhaps - from codec packs if you are trying to decode weird video formats) can have the same effect.

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  #341274 13-Jun-2010 17:59
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how's your ram usage? is your hard drive rattling away all of the time?


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  #341301 13-Jun-2010 20:49
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Only 4 gigs in here at the moment means it does swap a lot, but the screen redraws happen even if I close a few ram whoring things like the firefox processes and tweetdeck it will keep doing it.

About 2 months since the last update of the ATI drivers - its only a radeon 2400 PCI-e but as I dont use the 3d at all it is fine for driving the pair of screens at only 1600x1200.

Rebooting solves it but then it starts to happen again. I found that it seems to happen the most if I leave the volume control open (some braniac at microsoft left off a minimize button on it in windows 7)

So ending that solves it if indeed it was the problem, but last time I had to close all my explorer windows before it stopped, the time before that I had to close system management which I had device manager open on.

I will dig out the nvidia card and try putting that back in next time it happens, had issues with the video quality on it since it has a goofy big plug which I have a Y cable from to 2 DVI's that I then have to put a DVI-VGA adapter into, so it had quite a bit of distortion compared to just plugging straight into the ATI card.


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