No, these symptoms do not exist in regular mode. They surface only when I enable NVRotate.
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Slow/Choppy display with NVRotate
I got a second LCD monitor, and have set them up both rotated 90 degrees which gives a really impressive display, I'm in love with it. But there's a problem: Everything draws very slowly.
It's most obvious with pulldown menus and tabs. With the menus, as I move from one choice to another, I can see the new choice's background draw blue while the text remains a white background, then the text's background fills in blue. On tabs, as I hover the mouse past them, I can see the entire tab disappear and redraw in it's new color.
I used the tool built in to my Nvidia card's drivers "NVRotate" to rotate the display to remain upright when rotating the monitors. I can see other people have this problem: http://forums.nvidia.com/i
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Answers
I'm almost certain the issue is hardware acceleration not working when the screen is rotated. For one, I fail to see how a generic product could manage this when the video card maker's software didn't. But it's a moot point because that place won't send their email that lets me download the trial, so I can't find out if it would help anyway.
I have, mostly, resolved this situation. I can't guarantee which piece fixed it exactly so here's what happened:
This is a work machine, and I am required to log on as a non-privileged user. This may have been a mighty part of my confusion, as it's so hard to elevate privileges in windows, nonetheless...
Basically, I had a 71.xx version driver and decided to try an old version. I downloaded a 40 something 50 something and 60 something from nvidia ( ftp://download.nvidia.com/
After a little tweaking I got into the menu controlling hardware acceleration (Control Panel, Display, Settings, Advanced, Troubleshoot). Previously, the slider and checkbox here were both grayed out, the slider all the way to the right, the check box checked. Now they are enabled. Putting the slider down one notch helped quite a lot, which is a bit confusing, but seems to help.
Unfortunately, as I stepped through the above steps to verify, I noticed the same slowness, and had to set and re-set that slider and things appear to be better again. Might take a little extra effort.
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by: CallandorPosted on 2005-05-23 at 09:16:49ID: 14061497
Does this problem continue to exist with the monitors in landscape positions? If not, you can try different driver versions, but I think nVidia didn't optimize them for rotated views, because even the landscape views can be choppy, depending on what version you use. The only suggestion then is the same as mentioned in the forum: Pivot Pro (http://personalcomputing.