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The AMD Driver Thread

shankly1985 said:
Soon to have two desktop monitors, I asked the other day in a thread not sure what one.. If I have two displays do they after be connected to the top GPU..

But I just came across this video that when running in extended mode what I will be running I can have each display connected to each GPU.

So GPU1 to display 1, GPU2 to display 2


https://www.youtube.com/watch?v=-fhSLiz079c#t=257


Can anyone confirm you can still do this? And what do you do to control each display?
Click to expand...

My understanding is that to use the ports on the second card, you need to disable Crossfire, but I haven't actually tried it since the 5870. I'll give it a shot in a few minutes once I've kicked my youngest off my PC.

I've found that running multiple screens at different resolutions causes high idle memory clocks, but with the 290s running screens with the same resolution gives standard, low idle clocks. I've tried:
1x 1920x1200 + 2x 1920x1080 = high idle memory clock
3 x 1920x1080 + 1x 1600x1200 = high idle memory clock
4 x 1920x1080 (3 Iiyama, 1 Packard Bell) = low idle memory clock

Are your two screens the same resolution/size/refresh rates? If not, using the second card might avoid higher idle clocks, and hence temperatures, if it works.
 
Confused Stu said:
Just got onto the PC, and it's as expected - if I connect a monitor up to the second GPU, it only becomes active & available when I disable Crossfire. With crossfire enabled, I can only use the monitors attached to the primary card.
Click to expand...

That makes sense, since I've always had both cards in crossfire and only looked up info about running multiple displays with crossfire it would explain why I was under the impression that all displays had to be connected to the primary card.
 
Confused Stu said:
Just got onto the PC, and it's as expected - if I connect a monitor up to the second GPU, it only becomes active & available when I disable Crossfire. With crossfire enabled, I can only use the monitors attached to the primary card.
Click to expand...

CrossFire turns multiple GPU's into one, thats how you get 2x the performance.

You can either have multiple GPU's working as one, or not. thats why you only get a display out put from one with CF enabled.
 
Confused Stu said:
My understanding is that to use the ports on the second card, you need to disable Crossfire, but I haven't actually tried it since the 5870. I'll give it a shot in a few minutes once I've kicked my youngest off my PC.

I've found that running multiple screens at different resolutions causes high idle memory clocks, but with the 290s running screens with the same resolution gives standard, low idle clocks. I've tried:
1x 1920x1200 + 2x 1920x1080 = high idle memory clock
3 x 1920x1080 + 1x 1600x1200 = high idle memory clock
4 x 1920x1080 (3 Iiyama, 1 Packard Bell) = low idle memory clock

Are your two screens the same resolution/size/refresh rates? If not, using the second card might avoid higher idle clocks, and hence temperatures, if it works.
Click to expand...

Not got the second display yet.. Be buying the new BenQ what is 1440p 144hz vs 1080p 120hz..

I think if I was to run a game across the two then I would need to have them connected to top GPU.. But because I going to use Extended mode this isn't the case and hopefully crossfire will still work..
 
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Guys question.

If you have two display's one running a game and the other with say chrome open. If they a hotkey you can press to start having control over the second monitor with chrome running without coming out of the game on first display??
 
shankly1985 said:
I think if I was to run a game across the two then I would need to have them connected to top GPU.. But because I going to use Extended mode this isn't the case and hopefully crossfire will still work..
Click to expand...

Afraid not dude, tested this morning in Extended and Eyefinity setups. It's definitely use the second GPU's ports OR use Crossfire. Doesn't matter if you're running Extended/Eyefinity, it's definitely Crossfire that's disabling the second GPU's ports.
 
TonyTurbo78 said:
Any ideas on a new driver Matt? Feels like it's been a long time since last one.

Quite keen on a driver that stops flickering in dragon age inquisition with multi gpus
Click to expand...

You can try a user config on Mantle(doesn't flicker but this improves mgpu performance)/DX(flickers):

PerfOverlay.DrawFps 1
PerfOverlay.DrawGraph 0
PerfOverlay.Enable 1
Render.DrawScreenInfo 1
RenderDevice.FramePacingMethod 0
RenderDevice.TripleBufferingEnable 1
GameTime.MaxVariableFps 500

-GameTime.MaxSimFps 60 -GameTime.ForceSimRate 60+.

Yellow is the part you need, red gives you 60fps cut scenes.

Or if you don't know how to make your own, here's mine, just delete the rest if you don't want any OSD:

https://www.oboom.com/7XTWYOV9/User.cfg


TonyTurbo78 said:
and of course proper crossfire optimusation for far cry 4.
Click to expand...

FC4 force AFR, but you'll get a persistent slightly transparent static screen from the map after so long, but yeah we need the proper enabled profile for FC4 Matt, ubi fixed AMD mgpu performance on the 1.6 patch-surprisingly, it runs quite well apart from the odd bit of stutter.



@Matt,

I'm looking for some METAL GEAR SOLID V: GROUND ZEROES mgpu support too matt, any eta, it needs mgpu for max vsr.:)



@Shankly,

mgpu mode, all displays need connected on the top gpu, you can hit the win key on some and it will give you control on the chrome screen, otherwise 'alt' and 'tab' flicks you through all open windows to work on without closing the game.
 
tommybhoy said:
You can try a user config on Mantle(doesn't flicker but this improves mgpu performance)/DX(flickers):

PerfOverlay.DrawFps 1
PerfOverlay.DrawGraph 0
PerfOverlay.Enable 1
Render.DrawScreenInfo 1
RenderDevice.FramePacingMethod 0
RenderDevice.TripleBufferingEnable 1
GameTime.MaxVariableFps 500

-GameTime.MaxSimFps 60 -GameTime.ForceSimRate 60+.

Yellow is the part you need, red gives you 60fps cut scenes.

Or if you don't know how to make your own, here's mine, just delete the rest if you don't want any OSD:

https://www.oboom.com/7XTWYOV9/User.cfg




FC4 force AFR, but you'll get a persistent slightly transparent static screen from the map after so long, but yeah we need the proper enabled profile for FC4 Matt, ubi fixed AMD mgpu performance on the 1.6 patch-surprisingly, it runs quite well apart from the odd bit of stutter.



@matt,

I'm looking for some METAL GEAR SOLID V: GROUND ZEROES mgpu support too matt, any eta, it needs mgpu for max vsr.:)



@Shankly,

mgpu mode, all displays need connected on the top gpu, you can hit the win key on some and it will give you control on the chrome screen, otherwise 'alt' and 'tab' flicks you through all open windows to work on without closing the game.
Click to expand...

In CF mode, all displays need to be connected on the Primary GPU which does not have to be the top, it can be any of the GPUs in the system.

The primary GPU is the GPU with which the primary display is currently selected, so if i had let say 8 displays, 4 montors on the top GPU and 4 on the bottom or middle GPU for CF i can then disable CF select a monitor on one of the other GPUs as primary then re-enable CF that card will now become the Primary GPU card.
 
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thx for the info tommy.

My problem with Far Cry 4 is, whenever I run the game with AFR enabled, I get a previous frame shadow, almost like a froze frame inbedded on the screen as a very faint silhouette. It's the same when I run AFR with Ryse Son Of Rome, get the same frame oultine in the background of my game when it runs. If you not sure what I mean, I'll take a screenshot. I've tried with turning frame pacing off as well, but no different.
 
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Final8y said:
In CF mode, all displays need to be connected on the Primary GPU which does not have to be the top, it can be any of the GPUs in the system.

The primary GPU is the GPU with which the primary display is currently selected, so if i had let say 8 displays, 4 montors on the top GPU and 4 on the bottom or middle GPU for CF i can then disable CF select a monitor on one of the other GPUs as primary then re-enable CF that card will now become the Primary GPU card.
Click to expand...

I know, used to run my 6970's that way, and disable CrossFire via CCC taskbar and run the TV through the second gpu as they ran much higher clocks on twin displays but my 7950's or 70/50 CrossFireX would never output via bottom gpu, they would only output via the top card and never tried the 290's, now I just 'win'+'p' to swap displays.:)

TonyTurbo78 said:
thx for the info tommy.

My problem with Far Cry 4 is, whenever I run the game with AFR enabled, I get a previous frame shadow, almost like a froze frame inbedded on the screen as a very faint silhouette. It's the same when I run AFR with Ryse Son Of Rome, get the same frame oultine in the background of my game when it runs. If you not sure what I mean, I'll take a screenshot. I've tried with turning frame pacing off as well, but no different.
Click to expand...

That's what I was talking about, for me it happens after taking a stare at the map, you can get rid of it by changing res, but it comes back, exact same thing when I played Ryse too.

Hoping matt can give us an update as it sounded like AMD had a working profile on their end waiting, but ubi being ubi, I wouldn't be surprised if AMD had to start again tbph, which is a shame as it has really caught my attention and making me want to actually play a title instead of my usual 'next...'.:)
 
Tommy Farcry 4 is having a new patch shortly and as such, we've been unable to test if Crossfire is safe to be officially enabled yet in this title. Once we've tested and confirmed all is ok, it will be added to the next driver. As soon as i can tell you when that will be, you'll hear about it from me.

As for Metal Gear Solid i will have to investigate. :)
 
Odd aliasing going on in Alien Isolation, Tested the game at 1080P on a GTX 780 Ti and the aliasing was there but not bad, Tested again with the same settings on the 295X2 and the aliasing is huge.

This a driver issue or game issue ?
 
Dicehunter said:
Odd aliasing going on in Alien Isolation, Tested the game at 1080P on a GTX 780 Ti and the aliasing was there but not bad, Tested again with the same settings on the 295X2 and the aliasing is huge.

This a driver issue or game issue ?
Click to expand...

Single gpu can select SMAAx2 but multi gpu (from either vendor) can only select SMAAx1, this could be the reason.
 
AMDMatt said:
Single gpu can select SMAAx2 but multi gpu (from either vendor) can only select SMAAx1, this could be the reason.
Click to expand...

Well I tried disabling Crossfire-X but sadly SMAAx2 is still not showing and even at 4K the pixel crawling on certain edges is really annoying me :(

Here's a shot in 4K max settings with SMAAx1, Also tried FXAA and it did nothing.

If you look at the stairs over to the left, The edges are quite aliased and when moving it's VERY noticeable with horrendous pixel crawling, Also look at the fluorescent light stands to the left and right, Jaggy heaven.

Just 1 example -

IWbqxUi.png
 
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