I have a very specific problem. It is repeatable (for me) and would be interested to know if there is anyone else out there for who it is working.
I cannot get a 144Hz display refresh rate to work with multi-GPU. The PC blue-screens in the ati driver module.
I can reproduce this problem with two separate PCs. Unfortunately I only have the one monitor capable of 144Hz.
There is no problem with single GPU (CrossFireX disabled or non-fullscreen) and no problem at 120Hz.
For me it is specific to 144Hz with dual-GPU. Please can someone else tell me whether this is a known problem or whether it should work! Thanks!
The technical details:
Asus VG275HR connected via dual-link DVI-D running native res (1080p)
Asus Radeon HD7990-6GD5, i7-4770k, Asus Z87-Deluxe, OCZ ZX1250
Win7-64 Pro SP1, 13.6Beta2 (tried 13.4 too)
Asus Radeon HD7970-3GD5 twin, i7-3930k, Asus P9X79-Pro, OCZ ZX1250
Win7-64 Pro SP1, 13.4
To reproduce - start any OpenGL or DirectX app fullscreen (1920x1080) at 144Hz refresh rate. Even the 'SimpleSample' app from the D3D9 SDK shows the problem. CrossFireX must be enabled.
Somebody out there must be running similar setups!