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1. Re: Intel DH87RL and 4K/60Hz over Display Port
allan_intel May 26, 2014 10:13 AM (in response to Weilburger)Thanks for joining the graphics community.
I understand you are looking for 4K screen resolution specifications.
This type of resolution is supported on 4th generation Intel® Core™ processor family (Intel® Iris™ Pro Graphics 5200 / Intel® Iris™ Graphics 5100, Intel® HD Graphics 5000 / 4600 / 4400 / 4200)
See the following supported screen resolutions through DP 1.2
DisplayPort* 1.2 / eDP*
H-Processors: 3840 x 2160@60Hz
U-Processors: 3200 x 2000 @60 Hz, 3840x2160@30Hz
*Embedded display port.
Please check additional information about graphics controller here:
https://software.intel.com/en-us/articles/quick-reference-guide-to-intel-processor-graphics
Allan.
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2. Re: Intel DH87RL and 4K/60Hz over Display Port
Weilburger May 26, 2014 12:44 PM (in response to allan_intel)Hello Allan,
thanks for the answer, but now there are more new questions than you answered :-)
You wrote about H- and U-Processors - I think those are BGA Chips for "All-in-On" Systems (soldered on the board). See: Haswell (microarchitecture) - Wikipedia, the free encyclopedia
I am talking about an Intel Desktop Mainboard: DH87RL with Socket 1150 to use with Core i3, i5 and i7 CPUs. There was an article in the German Computer Magazin c´t, that these CPUs are supporting 3840x2160 @ 60Hz but the driver is still missing (April 2014). The driver must support "High-Bitrate 2 (HBR2) over SST (Single-Stream-Transport)" for 60 Hz over Display Port 1.2 or at least Multi-Stream-Transport (originally designed for connecting two daisy-chained Displays with 30Hz each).
I checked it today with my new Samsung U28D590p Display and I was not able to select more than 30Hz. (This Monitor is working with 3840x2160@60Hz on an external GeForce card)
Is Intel working on a driver update to support 60Hz over Display Port?
Greetings from Germany,
H. Nagi
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3. Re: Intel DH87RL and 4K/60Hz over Display Port
allan_intel May 27, 2014 7:20 AM (in response to Weilburger)Thanks for coming back to the communities.
The Intel engineering department is aware of this matter and they are currently working to get this issue resolved. I still do not have an estimate time of resolution but you can keep check the following post for more details:
https://communities.intel.com/thread/46375
Allan.