R9 290 Crossfire with U2868PQU, No 60Hz at 4K
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Last response: in Graphics & Displays
tomsmithy666
June 10, 2014 9:25:08 AM
Hi, it seems that my r9 290 will not work as diplay port 1.2 in 4k (60hz) even though it says it supports this feature. I have the catalyst 14.6 beta driver installed on windows 8.1 64 bit. Im using the new AOC U2868PQU monitor and have made sure that the monitor is in DP 1.2 mode. it works fine in 30Hz mode other than it being yahno, 30Hz.
Any help you can offer is greatly appreciated.
Any help you can offer is greatly appreciated.
More about : 290 crossfire u2868pqu 60hz
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tomsmithy666
June 10, 2014 9:38:12 AM
tomsmithy666
June 10, 2014 9:42:32 AM
tomsmithy666
June 10, 2014 9:53:15 AM
yeah, no joy in single gpu either, although testing onboard gpu may be pointless as im not sure if z77 supports dp1.2 anyways
EDIT: just checked, HD 4000 is only DP 1.1, so no point in testing it
I also dont seem to be the only AMD user to experience this issue on the new 60Hz 4K monitors which leads me to believe its AMDs poor drivers or BIOS atm
EDIT: just checked, HD 4000 is only DP 1.1, so no point in testing it
I also dont seem to be the only AMD user to experience this issue on the new 60Hz 4K monitors which leads me to believe its AMDs poor drivers or BIOS atm
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tomsmithy666
June 10, 2014 10:13:42 AM
tomsmithy666
June 10, 2014 10:24:57 AM
tomsmithy666
June 10, 2014 10:35:24 AM
tomsmithy666
June 10, 2014 10:42:47 AM
Bit of a long shot here but have you tried launching a game or watching youtube (flash!!) when at 60Hz? I noticed my old 5770 couldn't keep a stable image at 144Hz 1080p (flickering, blinking and tearing) when idling but did just fine as soon as the clocks went higher... 120Hz was fine even when idling.
edit is the monitor a single headed one? most 60Hz 4k monitors so far have been dual headed so they appear as 2 monitors in windows and use MST to hit that 60Hz...
edit is the monitor a single headed one? most 60Hz 4k monitors so far have been dual headed so they appear as 2 monitors in windows and use MST to hit that 60Hz...
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Reply to Kari
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tomsmithy666
June 10, 2014 11:42:44 AM
tomsmithy666
June 10, 2014 11:42:47 AM
ive ordered a DP 1.2 cable just in case (only cost me £10 so no biggie) we'll see when it arrives on thursday, until then im going to continue asking xfx support if they know of any issues with their dp1.2 compatability on their cards, as i havent seen any nvidia users or reviewers reporting this problem
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tomsmithy666
June 10, 2014 11:48:08 AM
tomsmithy666
June 10, 2014 11:59:50 AM
http://pcmonitors.info/aoc/aoc-u2868pqu-another-uhd-4k-...
....
An early June arrival is expected in the UK with the screen priced at around £500 including VAT.
ok, that's neat
Quote:
The monitor fully supports 60Hz (rather than being limited to 30Hz) at its native UHD resolution using DisplayPort. It will use SST (Single-Stream Transport) rather than MST (Multi-Stream Transport) to achieve this. In other words the operating system sees it as one monitor which is more straightforward in terms of applications displaying things properly.....
An early June arrival is expected in the UK with the screen priced at around £500 including VAT.
ok, that's neat
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tomsmithy666
June 10, 2014 12:37:38 PM
ncdom
June 11, 2014 3:52:57 AM
17seconds said:
All but a few 4k monitors run at 30 Hz effectively. It has something to do with the fact that they are actually two screens stitched together. Sorry for the crappy explanation, but you should Google it. That's likely your problem.Yes, I have a Samsung 4k monitor as of a few days ago, this is the correct explanation. I cannot word it much better. very few actually do go to 60Hz, even though it may list it and may say it does in settings, it's really not.
I have this monitor (Samsung calls it RT panel but it is really a TN panel)
http://www.newegg.com/Product/Product.aspx?Item=9SIA2RY...
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tomsmithy666
June 11, 2014 4:56:46 AM
tomsmithy666
June 12, 2014 3:08:43 AM
tomsmithy666 said:
so are you running your samsung at 30hz or 60hz? because the likes of kitguru, hexus and linustechtips had no problem getting them to run at 60hz via DP1.2Says 30Hz effective mode, 60Hz capable which can be reached, but they are actually 30Hz.
I have a R9 290X for reference as GPU.
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tomsmithy666
June 12, 2014 7:55:47 AM
ncdom
June 12, 2014 12:11:11 PM
tomsmithy666 - I also have a 780 arriving tomorrow as a replacement for the R920x... but in the meantime, my old 660 GTX is running 60Hz perfectly on the same monitor. It obviously can't game at particularly useful refresh rates, but same system, same cable, same monitor, all running fine. It's definitely an AMD issue.
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tomsmithy666
June 12, 2014 1:10:05 PM
tomsmithy666
June 13, 2014 2:56:48 AM
oldguyguru
June 13, 2014 9:51:01 AM
there is an issue with the R9 290, loads of videos of flickering or black screen on You Tube at 4K 60Hz with different monitors, Samsung included, definitely an AMD driver issue. Other thing from AOC, there is a DP capability setting in the menu OSD setup on page 27 of the manual, not sure if that makes any difference. The AOC cable is DP1.2 or the NVidia card wont work. I'm working with a Titan Black, works perfectly at 60hz.
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tomsmithy666
June 13, 2014 5:47:21 PM
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famich
June 14, 2014 2:26:59 AM
Hi,
I have explicitly checked DP 1.2 option at OSD menu, still flickering in 2D mode in W7. AC Black Flag however runs 60Hz no problem !!
3D Mark on the contrary flickers like crazy. Guys with Nvidia do not report this problem, so it is /sadly / an AMD issue.
I got here one 780Ti , but , honestly, AMD is the way to go ATM, as 3Gb are really not enough at 4K / see the reviews of Watch Dogs etc / Titan Black SLi would be ideal, but ..2x290 600€ 2x Titan Black sums up at 1800+€ ....
I have explicitly checked DP 1.2 option at OSD menu, still flickering in 2D mode in W7. AC Black Flag however runs 60Hz no problem !!
3D Mark on the contrary flickers like crazy. Guys with Nvidia do not report this problem, so it is /sadly / an AMD issue.
I got here one 780Ti , but , honestly, AMD is the way to go ATM, as 3Gb are really not enough at 4K / see the reviews of Watch Dogs etc / Titan Black SLi would be ideal, but ..2x290 600€ 2x Titan Black sums up at 1800+€ ....
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tomsmithy666
June 14, 2014 5:29:34 AM
famich
June 14, 2014 6:53:12 AM
Silent_Scone
June 15, 2014 12:27:52 AM
I am getting the same with the AOC monitor. 60hz on the 290X on any driver results in severe flickering over DP1.2. It has to be a driver issue. I have tweeted AMD and Thracks (Robert Hallock) about this issue and they're looking into it.
I used the panel without issues on my 780tis. Although as you've stated above, the cravat is that 3Gb is certainly not enough for 4K.
I used the panel without issues on my 780tis. Although as you've stated above, the cravat is that 3Gb is certainly not enough for 4K.
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famich
June 15, 2014 2:47:07 AM
Silent_Scone said:
I am getting the same with the AOC monitor. 60hz on the 290X on any driver results in severe flickering over DP1.2. It has to be a driver issue. I have tweeted AMD and Thracks (Robert Hallock) about this issue and they're looking into it.I used the panel without issues on my 780tis. Although as you've stated above, the cravat is that 3Gb is certainly not enough for 4K.
Thank you very much for your reply as it confirms pretty much what other guys here and elsewhere reported .. I got the same dilemma here : one TI here, but only 3Gb and Titan Black is 950 € .
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17seconds said:
unknownofprob said:
glad to know it is 60Hz for you, the next driver by AMD is projected to fix this issue.For AMD fans, that's called doing the "AMD Shuffle". Its a dance they do with their drivers.... a fix is always right around the corner.
Somewhat True, according to their 14.7 Beta I read, I saw the heading 4k issues. Not much more then that, but that could mean a true 60Hz.
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famich
June 15, 2014 8:09:05 AM
tomsmithy666
June 15, 2014 3:43:06 PM
you see, although you guys say 3GB isnt enough for 4K, but im having no dramas in any game with these 780s, no dropping and chopping frames, smooth 60fps, no tearing, its brilliant. besides, us $K users are pretty much going to need to upgarde next generation as we will need to the core power for 2015s titles, in 4K i think we you should be more worried about horsepower as opposed to VRAM, as the 4K tests on the 780 6GB seriously didnt yield a reasonable performance boost over the 3GB, infact it was nigh on negligable.
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famich
June 15, 2014 10:54:08 PM
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