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 Post subject: eyefinity aspect scaling
PostPosted: 19 May 2010, 12:43 
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Joined: 19 May 2010, 12:39
Posts: 10
I'm running two 26" 16:9 monitors and one 24" 16:10 monitor. My 5870 arrives tomorrow.

Question: Will ATI's drivers scale the 24" monitors image to fill the screen? Nvidia's always did when using one of the 26" and the 24". Just curious as to whether or not I will get horizontal bars on the one screen. Really crossing my fingers. :)


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PostPosted: 19 May 2010, 13:29 
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Joined: 22 Feb 2010, 09:04
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Well.. Your two 26" will get the screen resolution of the 24" in an Eyefinity group.
Eyefinity will take the lowest resolution available and then projects that on all three screens..

This only applys to groups.. My advice for gaming: get one more 26"!

But probably no black bars then.. :D


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PostPosted: 19 May 2010, 15:01 
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Joined: 19 May 2010, 12:39
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well.. the two 26" are actually lcd tv's, that will run at 1360*768. I had one 1920*1200 24" monitor and an extra 26" lcd tv from a bedroom. i could only get away with one new purchase per the wife. :) i opted to get another 26" tv (BB gift card and reward zone pts made it 200.00). Had I gone with another 24", the two monitors would be running at the lower rez of the tv, which i figured would look worse.


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PostPosted: 19 May 2010, 15:03 
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Joined: 19 May 2010, 12:39
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i realize all three monitors will run at the 1360*768. i'm just curious if ati drivers will make the 24" scale the image vertically to fill it out. if you just set it to that rez without scaling, it won't take of the whole screen due to it's different aspect ratio.


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PostPosted: 20 May 2010, 13:51 
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Joined: 22 Feb 2010, 09:04
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i realize all three monitors will run at the 1360*768. i'm just curious if ati drivers will make the 24" scale the image vertically to fill it out. if you just set it to that rez without scaling, it won't take of the whole screen due to it's different aspect ratio.


I guess this depends on your monitor: it has to support the resolution.. Otherwise the monitor will not display at all. Otherwise it jus scales fullscreen!

Let us now what happens!


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PostPosted: 21 May 2010, 00:29 
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Joined: 19 May 2010, 12:39
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i had to dig for a few minutes to find the option, but it did have one to fill out the monitor. eyefinity is amazing!!!


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PostPosted: 21 May 2010, 08:21 
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Joined: 22 Feb 2010, 09:04
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i had to dig for a few minutes to find the option, but it did have one to fill out the monitor. eyefinity is amazing!!!


Congrats! Enjoy it!


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PostPosted: 24 Jul 2010, 01:58 
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Joined: 24 Jul 2010, 01:27
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I just finished setting up my eyefinity today, and I have the opposite problem. Here is my setup

- 1x24" 16:10 1920x1200 in the center, connected with DVI.
- 2x24" 16:9 1920x1080 on the sides, connected through DP->VGA and DVI->VGA adapters respectively.

When I create an eyefinity group, the center monitor lowers its resolution to 1920x1080, but it scales the image to fill the whole screen. This produces aspect ratio distortion and ugly "continuity" between the monitors, and I would prefer to keep the aspect ratio with black bars in the upper and lower sides of my 16:10 screen.

There are supposedly two ways of doing this:
- In my monitor settings, I can set "keep aspect ratio" option, but it is disabled for 1080p resolution. It works ok for lower 4:3 resolutions.
- In CCC->Image scaling->Enable GPU scaling->Keep aspect ratio. But it refuses to stay like that in Eyefinity mode, resetting inmediately to "Scale to panel size".

Anyone knows if what I want is just not possible and why?

Thank you!


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PostPosted: 30 Jul 2010, 05:11 
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Joined: 30 Jul 2010, 04:56
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I have the exact same problem as you Morgg.

The picture get stretched from 1080 to fit the 1920x1200 resolution on my 16:10 main screen.

I use BenQ G2400W 1920x1200 as main screen, and 2 BenQ G2420HD 1920x1080 on each side.
Connected with 2x DVI and 1 active DP to DVI adapter, on a XFX 5870 card.


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PostPosted: 24 Aug 2010, 07:31 
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Joined: 24 Jul 2010, 01:27
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I have the exact same problem as you Morgg.

The picture get stretched from 1080 to fit the 1920x1200 resolution on my 16:10 main screen.

I use BenQ G2400W 1920x1200 as main screen, and 2 BenQ G2420HD 1920x1080 on each side.
Connected with 2x DVI and 1 active DP to DVI adapter, on a XFX 5870 card.


I found some kind of workaround for my monitor (BenQ G2400W too :) ), and that is using an HDMI cable instead of DVI. Disabling aspect ratio correction in Catalyst Control Center, I was able to set the monitor to keep aspect ratio with its own ARC feature.

It has some minor disadvantages though:
- The monitor stays in blue instead of switching itself off when there is no signal present.
- The pixel size in the middle monitor is smaller, so now the image in 16:9 monitors is a little taller. Better than having vertically stretched picture in the middle, though.

Only bezel compensation left for my eyefinity setup to be acceptable. I hope ATI will fix it in future drivers. However, there are games that already support it in the game engine itself, like Live For Speed and iRacing. Maybe others will follow this trend.

Regards,


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