Finally got everything to work at 60Hz. Had to remove the overclock on everything and update the chipset to the latest one on the asus website. I still get the black screen from time to time but it seems just like what other people were reporting here, it will flicker and then turn off for a moment then turn back on. However the longest black screen that I had did last for well over a minute. I'm gonna get a better quality cable like some have suggested before to see if this clears up the issue. If not then I may have return it despite how awesome things look in 4k.
** HERE COME ASUS WITH THEIR 4K 28" OFFERING!! **
- Thread starter Gibbo
- Start date
Running mine on 1.2 @30hz the issue isn't 1.2 in and of itself - at 60hz it looks like there's serious signal issues somewhere in the chain. My assumption is the cable shipped with is junk (sure looks it) though at 10:30pm it's kinda hard to get a replacement
That being said even uncalibrated it looks pretty nice even in Win 7 - the scaling issues aren't nearly as bad as I thought they'd be. Firefox seems to handle font scaling pretty well too.
I have just left the windows scaling at normal, I don't have issue with the small writing. The way windows 7 does the scaling doesn't seem quite right to me.
Alright so it seems like there is definitely an AMD-related issue, think I've narrowed it down to something with CVT-R timings. Certainly it isn't specifically a problem with bandwidth - higher bandwidth modes work over lower ones that don't.
Definitely not a coincidence.
Code:
timings mode name pixels pixel rate
X Y Hz MHz GBps
CEA-861 2160p30 3840 2160 30 297.00 7.13 <- works
CEA-861 1080p60 1920 1080 60 148.50 3.56 <- works
CVT-R 2.30MA-R 1920 1200 60 154.13 3.70 <- bugged
CVT-R WQUXGA 3840 2160 60 533.28 12.80 <- buggedDefinitely not a coincidence.
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Mine just arrived. My first impressions after an hour or so:
-Had to manually select DisplayPort1.2 in the OSD to get 60hz as others suggested
-No dead pixels as far as I can tell (although they're so small!)
-Colours look acceptable out of the box (perhaps a bit bright but it's very sunny today so probably making it seem less bright than it is) but I'll have a play around later
-Linux works great, I don't know if the font's are slightly larger than windows but I find the default scaling fine. I may bump it up to 110% as it's a tad on the small side but totally legible because of the excellent PPI
-Tried WoW at 4k, 2xAA and it runs between 40-75fps running around orgrimmar on my 750ti which is fine for me
-Haven't had any screen flickering issues yet, but it's only been an hour
-I think 4k would be a horrible experience without a high dpi mouse!
Overall, very impressed with this monitor, the 4k resolution is incredibly impressive.
-Had to manually select DisplayPort1.2 in the OSD to get 60hz as others suggested
-No dead pixels as far as I can tell (although they're so small!)
-Colours look acceptable out of the box (perhaps a bit bright but it's very sunny today so probably making it seem less bright than it is) but I'll have a play around later
-Linux works great, I don't know if the font's are slightly larger than windows but I find the default scaling fine. I may bump it up to 110% as it's a tad on the small side but totally legible because of the excellent PPI
-Tried WoW at 4k, 2xAA and it runs between 40-75fps running around orgrimmar on my 750ti which is fine for me
-Haven't had any screen flickering issues yet, but it's only been an hour
-I think 4k would be a horrible experience without a high dpi mouse!
Overall, very impressed with this monitor, the 4k resolution is incredibly impressive.
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I have found one rather annoying issue, I get no BIOS output on displayport. Once the GPU driver is loaded I get a display but it means I'm unable to access any bios settings or see the boot process. Annoyingly this means I cant see my boot loader to select which OS to boot.
what motherboard are you using?
I had same issue before because due bios settings I left UEFI compatibility off
I think it may be the same issue others are having with standby. If I reboot, I get no BIOS. If I shut down and turn on the PC I get a BIOS as expected. Strange!
Fastboot or something probably? On a reboot it won't take as long to get through the checks as a clean startup. Some bioses actually have options to slow it down but that's a bit silly.
Your options are mostly just either assume everything works unless it pauses for an error or if you need to change something mash the relevant button
I assume nobody with one of these and an AMD card has found a solution yet? I got another cable coming tomorrow and I might go out and get some ferrite beads for the power and DP cable see if it helps but I don't have much hope due to not actually thinking it's cable signal related explicitly but will report.
Your options are mostly just either assume everything works unless it pauses for an error or if you need to change something mash the relevant button
I assume nobody with one of these and an AMD card has found a solution yet? I got another cable coming tomorrow and I might go out and get some ferrite beads for the power and DP cable see if it helps but I don't have much hope due to not actually thinking it's cable signal related explicitly but will report.
DisplayPort 1.2 effective bandwidth to 17.28 Gbit/s
Could not see how it was a bandwidth problem, had to be a cable issue or GPU cards hardware.
max for me 1.5 days until lost screen tried everything s...
Missing my point - I was saying that higher bandwidth modes (2160p30) are working over lower bandwidth ones (1920x1200@60) on my setup. Which is not to say necessarily it can't be signal strength/qaulity related - a specific type of noise for example might potentially cause more issues with CVT-R or something.
Somebody at ASUS/AOC/etc needs to send AMD one of their 4k SST monitors is the problem here.
Just to bring you up to speed, had my screen replaced (Saturday) - same issues.
Asus are replacing this one tomorrow - hopefully 3rd time lucky
Hi that's not very good. I've got the Aoc 4k and no issues like I had with my Asus although it did make the speaker like pop sound which I resolved by uninstalling the nvidia audio software
Just to bring you up to speed, had my screen replaced (Saturday) - same issues.
Asus are replacing this one tomorrow - hopefully 3rd time lucky
Hi, dude how can be you get replacement I still not,
asus state not in stock???