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3 monitor Alt-tab is really slow

post #1 of 8
Thread Starter 
Got an issue with my 3 monitors when I alt-tab into or out of a full screen game. I will alt-tab, first my center screen will go black (the primary) then 3-6 seconds later the left, then 3-6 seconds later the right screen, next 3-6 seconds I can see my cursor on the center screen, then it will go black again, then my left monitor will show the desktop, then my right and finally my middle monitor.

So it takes like 30 seconds to a minute to alt-tab. It doesn't do it all the time, but if i happens onces, from then on it will continue until I reboot.

Anyone have any suggestions?
 
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post #2 of 8
Does this happen in single card mode as well as crossfire?
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post #3 of 8
Thread Starter 
Yes. I found some info about the downclocking in 2d is to blame. Like it constantly downclocks and increasing the clock locking it up. So I made sure it would never downclock. I will update in a day or two to see if the problem is fixed.

Sucks having no effective way to reproduce the issue.
 
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post #4 of 8
You should also make sure that you have the Windows Power Settings set to Max Performance or whatever it is.
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post #5 of 8
That happens to me sometimes. Just a quick restart fixes it. It gets annoying when it happens.
    
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post #6 of 8
Thread Starter 
Figured I would update. The down clocking seems to be the issue.

To fix it, I enabled AMD Overdrive, and created a preset profile.

Then Navigated to C:\Users\\AppData\Local\ATI\ACE\Profiles

Open up the created profile with notepad.

Find







Change the Want_X properties to the highest value desired for 1, 2 and 3

Repeat for each core as needed.

Save and Apply the preset. You may need to apply the preset multiple times for it to stick. CCC has a weird issue about not applying all the settings in a profile correctly the first time.
 
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post #7 of 8
Subbed - I have had this problem af few times - but not enough so I really havn't thought of what it was.

So I'll sub this thread and learn from you.
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post #8 of 8
Subbed as well. This doesn't seem to be an issue for games that support borderless windowed mode (full screen) but its a pain for the rest that do not.

Edit: I saw the solution above, forcing your GPU to stick to default clocks but this means that it will run hotter on idle - there must be a better way.
Edited by subnet - 5/3/11 at 4:23am
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