Official Fulqrum Publishing forum - Possible cause for concern for AMD/ATI Crossfire users.

Official Fulqrum Publishing forum (http://forum.fulqrumpublishing.com/index.php)

- IL-2 Sturmovik: Cliffs of Dover (http://forum.fulqrumpublishing.com/forumdisplay.php?f=189)

- - Possible cause for concern for AMD/ATI Crossfire users. (http://forum.fulqrumpublishing.com/showthread.php?t=22245)

I get amazing scaling in the latest beta by forcing AFRfriendly d3d in radeon pro but have massive flickering problems.

The graphics scrolling and rendering is really really smooth though and I get 90 to 130FPS on black death track. There's lots of potential now for great crossfire scaling but the latest beta is unplayable for me as I have a 5970 and 2 x 5870s (quad GPU) and it stutters along at 10fps totally unplayable. If I force AFR with radeonpro I get an amazing smooth high frame rate but then I have flickering and missing textures which is just as unplayable! Back to the last formal patch release for me as the previous beta1 was crap too.

i7 950 @ 4.6Ghz
6GB Ram @ 2000Mhz
4 x 5870 @ 1000/1300
Win 7 ult 64bit
1920x1080 res

Hi Kankkis,

What Radeonpro lets you do is use CrossfireX Profiles made by AMD for other games that suffered from similar problems and try them on Cliffs of Dover.

So you could try a profile that solved Negative Crossfire Scaling for another game and try it for CoD. I will not say this helps but you never know, it seems to do the trick in other cases where they used profiles originally designed by AMD to resolve issues with a different game and manage to solve bad Crossfire performance in their game that way.

(Someone in another thread suggested using the Lost Planet DX10 Crossfire profile for instance but there are many different ones)

@Phat

Disabling Catalyst A.I. seems to have solved the flickering problem for some. You could try it out and just turn it back on should it not work.

• Disable CATALYST A.I - You must follow instructions below to disable Cat A.I. The slider settings are for enabled only, they've made it harder to disable it but here is how with latest drivers:

* Close down CCC.exe and MOM.exe via Taskmanager
* Navigate to <username> \AppData\Local\ATI\ACE\Profiles
* Open Profiles.xml with Notepad
* Alt + F and search for "Catalyst"
* Change Value Enable to Disable for Catalyst A.I
* Save
* Restart

Ive tried just about every profile combination possible in radeonpro including scissors, tiling and AFR and none of them fixed the crossfire problem totally.

The best result was with the generic AFRfriendly D3D gaining a massive 130FPS and silky smooth Black death, but then it has flickering textures and some black/missing textures too.

I updated from 11.4 w/Cap5 11.3 to Cap1 11.4 profile too with zero improvement.

We need a new AMD CAP and possibly some more optimisations from 1C to fix the crossfire stuttering.

Quote:

Originally Posted by Psycho_Ch!cken (Post 274922)

This is fixed with the switch to true fullscreen. That only applies to the game itself though, menus are still borderless window mode, so they will still underclock. But who cares about the menus eh? The actual gameplay works now with full speed.

EDIT: Just tried it myself. Jesus that's broken. On a slightly positive note, there is a tiny possibility that the input lag that's been plaguing things had vanished, but it was a bit hard to tell with things running that badly.

Not on my system sadly, even with 11.4 drivers. Still clocking at 400, not 850. :(

Quote:

Originally Posted by Orpheus (Post 275212)

Not on my system sadly, even with 11.4 drivers. Still clocking at 400, not 850. :(

Why you dont overclock your card memory and core clocks 1MHz