Is collage mode the same as tiled mode? (operating the 4K display as two displays of 1920x2160 @60Hz, but for the OS it is presented as a single display) or the driver's mode of stitching two 1920x2160 @60Hz displays together?
I currently have a UP3214Q connected to an HD4400 card and in MST mode get two 1920x2160 @60Hz. The driver can stitch those together, but only one config (selecting the other hard crashes the system) and it's not quite the desired operation mode for a 4K display..
So it does what I think it does. Now the question is - when can we expect a properly working driver? The screen burnt a hole in my wallet, but isn't of much use as long as it can only be properly operated in SST mode (at an eye cancer causing 30Hz)
Q1) Has this driver issue been resolved?
I'm considering using an Intel DH87MC along with an Evga Nvidia 750 Ti GFX to power two Dell UP2414Q monitors.
Each monitor will need a displayport connection capable of delivering 3840x2160 @ 60hz @ 30bit color.
Q2) Is the DH87MC up to the task of delivering 3840x2160 @ 60Hz @ 30bit color?
I've already received a confirmation from eVGA that their 750 Ti cards should be capable of this.
this article reports some issues with the HD4600 graphics when doing 3840x2160 @ 60hz by means of the displayport in MST and Collage mode on an Asus Sabertooth Z87 motherboard.
Issue A) "display was extremely choppy....choppiness doesn't occur until you enabled Collage mode"
Q3) Can you confirm that this is an Intel driver issue and that is has been resolved?
Issue B) "using DisplayPort in MST mode, NVIDIA cards fail to POST about 50% of the time."
Q4) Can you confirm that I won't encounter this issue on my future setup?
Issue C) "NVIDIA and Intel displays in MST mode cannot see the BIOS or POST screens"
Q5) Can you confirm that I won't encounter this issue on my future setup?
I'm aware that one or more of the listed issues may be a flaw in Asus's product.
In any case, if you have the option to confirm that I won't encounter these issues with my listed setup what would be very helpful.
Gigabyte has confirmed that the GA-Z87X-UD3H motherboard with F9 bios supports 3840x2160 @ 60Hz @ 32bit by means of the onboard displayport.
However, BIOS & POST screen was not visible with the onboard displayport. The screen did not turn on until Windows was loaded.
I had Gigabyte test with an NVIDIA graphics card as well (GV-NTITANBLKD5-6GD-B) and this displayed the BIOS & POST screen alright.
Intel - can you confirm that the lack of BIOS & POST screen is a bug at your end?
Also, can you please reply to my previous post from 18/4.
Thanks for coming back to the community.
I still do not have any update from engineering about this issue been fixed. You can check list of fixes and known issues on the driver release notes. The latest driver available is 3946, see release documentation here:
Please understand that this lack of response is very frustrating.
Don't you have a test facility where you or someone else can verify if the issues in question have been resolved or not?
Sorry about the trouble.
I am still waiting for some news about this topic from engineering department. No ETA yet.
Hi Allan, checking in on this. I have an Intel NUC and a Surface Pro 3 and both continue to have issues driving my Asus PQ321 at 3840x2160 at 60hz.
- the newest (august 2014) version of the driver doesn’t work properly, limiting resolution to a strangely stretched 3840x1440. The May 2014 version of the driver offers the proper resolution.
- If the display goes to sleep, it often cannot be woken up simply by moving the mouse/keyboard. You have to power the display off and back on. Once you do so, and log back into windows, all the open applications are scrunched up into the top left corner as if the resolution was briefly dropped very low. This happens even if I have the display set not to turn off (if I lock the machine and walk away for a bit).
- About 1/3 of the time, in addition to the screen scrunching, there is a “ghost” taskbar that appears towards the upper middle of the screen (with active buttons and everything) and this doesn’t go away until I log off and back on.
I have heard that there are similar issues with the Dell displays. I was hoping the sleep issues would be addressed in the new august drivers, but unfortunately those seem broken and can't even offer full 3840x2160 resolution in collage mode for some strange reason.
Ahh... so we do have the second manufacturer of tiled screen also having the problem. That would then point to the drivers (with Dell you never know.. their QA was in deep hibernation when they released the screen).
I have a couple of questions regarding the issues you are seeing.
On the Surface Pro 3, are you using a single external display connected via the Mini DP ?
What model of Intel NUC are you using?
What version of Intel HD Graphics drivers are you using?
What OS are you using?
Additionally, according to the Surface Pro 3 Wiki, the maximum supported resolutions varies across laplet configurations according to a CPU model. The i3-model can drive up to two (1920x1200 at 60 Hz) displays, while the i5 and i7 models support up to two external monitors with maximum resolution of 2880x1800 at 60 Hz.The maximum resolution of a single external display is 2560x1600 at 60 Hz for the i3-based model and 3200x2000 at 60 Hz or 3840x2160 at 30 Hz for the i5 and i7-based models. See Microsoft Surface Pro 3 - Wikipedia, the free encyclopedia
Hi Robert, feel free to forget the SP3 (but its HD4400 works at 3840x2160 at 60hz). I only care about the NUC which has the HD5000.
I'm on win8.1 and you can see my full diag and specs here: https://communities.intel.com/message/250600#250600
All,, the tiling issue with some 4K displays has been resolved with a driver update. Please install on of the following drivers if you are experiencing the tiling issue.
32 bit Win 7,8,8.1 for Intel HD 2500/4000 (Ivybridge) Intel® Download Center
64 bit Win 7,8,8.1 for Intel HD 2500/4000 (Ivybridge) Intel® Download Center
32 bit Win7,8,8.1 for Intel Iris and HD Graphics (Haswell) Intel® Download Center
64 bit Win7,8,8.1 for Intel Iris and HD Graphics (Haswell) Intel® Download Center