R9 series
http://www.amd.com/us/products/desktop/graphics/r9/pages/amd-radeon-hd-r9-series.aspx#5
if you are using the 3 dvi/hdmi ports you would need an active adapter for DP
I have updated the registry fix and all versions of the HG281D should now sleep correctly with NVidia drivers. Tested with the latest version 190.62 drivers released on 8/21 by NVidia.
The updated fix is available here.
Tom
hmm. in your nvidia control panel, does it still display HDTV options for the monitor? if it does, google "monitor asset manager" and run that, and see what the first four bytes of the 2nd line of the EDID info are and let me know if it isn't 22,64,F3,1C or 22,64,F4,1C
I HAVE SINCE UPDATED THIS FIX. DOWNLOAD THE UPDATED VERSION FROM http://www.tombeauchamp.com/2009/08/fix-for-hanns-g-28-monitor-and-nvidia-gpu-sleep-mode-problem/.
I've got sleep mode working now on my HG281D and 8800GT. Just save the registry file, double click on it, and reboot. Tested to...