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(Reviewed) $400 2560x1440 IPS no-AG 90hz+ Achieva Shimian QH270 and Catleap Q270 - Page 398

Poll Results: Vote when your Achieva/Catleap monitor comes in.

 
  • 41% (232)
    Achieva QH270
  • 2% (12)
    Achieva QH270 (DOA / didn't recieve)
  • 8% (46)
    Achieva QH270 (Dead pixel(s) / flawed panel)
  • 40% (224)
    Catleap Q270
  • 1% (8)
    Catleap Q270 (DOA / didn't recieve)
  • 5% (33)
    Catleap Q270 (Dead pixel(s) / flawed panel)
555 Total Votes  
post #3971 of 4784
2x Achieva QH270 lite ordered & a 7950 cant wait
post #3972 of 4784
Quote:
Originally Posted by Koehler View Post

What do you mean "maps in perfectly"? I still prefer 1440p over 1080p. I didn't believe my eyes when I actually saw one of the Yamakasi monitors. 1440p is a huge difference from 1080p. I didn't know how many details I was missing out on.

It's not a real term, but 2560*1440 is exactly 4x720p images.
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post #3973 of 4784
Quote:
Originally Posted by phemark View Post

Hello,
I am currently looking for a cheap IPS monitor (for photo editing/movies/a bit of gaming/general stuff) to buy, and I had my eyes almost set on Dell 2412M. But then I saw Korean monitors. They look amazing on paper, and reviews are good too. So im really into getting one of those. But before i commit to buy it, i wanted to ask you couple of questions (I was thinking of getting CATLEAP Q270 MULTI, if HDMI is needed)
a) I have Asus G73 laptop (ATI Mobility 5870), and only HDMI. Would I be able to:
i) Get cheapest version of q270 and use Dual Dvi converter to HDMI?
or
ii) Do i need to get multi input version and use HDMI directly? Would I get full 1440p using HDMI?
b) Outscalling:
i) Would it upscale every movie to 1440p (full screen, not windowed), and would it upscale gaming in less than 1440p to full screen aswell?
ii) if i ever decide to connect anything else than a computer to this monitor, would it upscale it to 1440p or show it in windowed mode? (like console, camera, tv box if possible?)
c) Someone mentioned, that input lag is noticable when upscalling, is it true?
d) Would i be able to overclock (get a bit better refresh rate) on this monitor with my Mobility 5870?
So overall, I would like to know if i would always get 1440p with my mobility 5870 using HDMI, and if there would be any problems at all.
Thank you for all the answers!
phemark

So, does anyone know if I would be able to get 1440p via HDMI on my ATI Mobility 5870?
thanks
post #3974 of 4784
I don’t believe HDMI can be converted to DL DVI. Quick googleing seems to confirm that

HDMI can push 1440p provided your GFX chipset can support it, you would have to check in it, so the ADboard model "should" work that way

if you are playing media from your computer it will play at native res or you can expand the video to fit, this scaling would be done by your GFX card/software not the monitor itself, similar to playing a 720p movie on a 1080p monitor

Other connections would be upscaled or windowed, it depends on what you have set, I asked earlier and when upscaled i might not look very good (go back a page) windowed it should look OK but you lose a lot of space

not sure about the lag

doubt you would be able to OC, that was specific to a certain model which isn’t made anymore
Edited by Sibuna - 6/7/12 at 8:29am
post #3975 of 4784
Quote:
Originally Posted by exileut View Post

I just noticed this as well. The bezel sags and cuts off the top 4 rows of pixels in the center. I read the first 100 pages or so of the thread and I think I remember reading a fix for this somewhere.

I have the exact same problem?

Anyone have the solution?
post #3976 of 4784
Quote:
Originally Posted by Sibuna View Post

I don’t believe HDMI can be converted to DL DVI. Quick googleing seems to confirm that
HDMI can push 1440p provided your GFX chipset can support it, you would have to check in it, so the ADboard model "should" work that way
if you are playing media from your computer it will play at native res or you can expand the video to fit, this scaling would be done by your GFX card/software not the monitor itself, similar to playing a 720p movie on a 1080p monitor
Other connections would be upscaled or windowed, it depends on what you have set, I asked earlier and when upscaled i might not look very good (go back a page) windowed it should look OK but you lose a lot of space
not sure about the lag
doubt you would be able to OC, that was specific to a certain model which isn’t made anymore

Thanks a lot for the answer.

From AMD website, i get the following about my Mobility 5870:
Integrated dual-link DVI output with HDCP
Max resolution: 2560x1600
Integrated DisplayPort output
Max resolution: 2560x1600

Integrated HDMI 1.3 output with Deep Color, xvYCC wide gamut support, and high bit-rate audio
Max resolution: 1920x1200
Integrated VGA output
Max resolution: 2048x1536

So it seems that GPU can support that resolution, but as my G73 laptop only has HDMI and VGA, is there a way i can do it?
Would HMDI to Dual DVI give me 1440p?

(Seems that VGA would give 1440p at 4:3 ratio, but its not that i want...)

Thanks again for response!
post #3977 of 4784
Quote:
Originally Posted by phemark View Post

Thanks a lot for the answer.
From AMD website, i get the following about my Mobility 5870:
Integrated dual-link DVI output with HDCP
Max resolution: 2560x1600
Integrated DisplayPort output
Max resolution: 2560x1600

Integrated HDMI 1.3 output with Deep Color, xvYCC wide gamut support, and high bit-rate audio
Max resolution: 1920x1200
Integrated VGA output
Max resolution: 2048x1536
So it seems that GPU can support that resolution, but as my G73 laptop only has HDMI and VGA, is there a way i can do it?
Would HMDI to Dual DVI give me 1440p?
(Seems that VGA would give 1440p at 4:3 ratio, but its not that i want...)
Thanks again for response!

Unlikely. Although HDMI may be able to drive 2560x1440, a HDMI single link 1440p signal is not the same as a DL-DVI 1440p signal. Adapters may not do the conversion properly. You need an adapter that is specifically rated at 2560x1600, and I don't think those exist.
post #3978 of 4784
Isn't "maximum" resolution simply maximum resolution? If it can do 2560x1600, it should be able to do 1440p.
   
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CPUMotherboardGraphicsRAM
i7 3770 @ 4.3 GHz ASRock Z77E-ITX GTX 660 Ti + Accelero Mono Plus, 1.875V G.Skill Ripjaws X 16GB at 2133MHz 9-10-11-28-1T... 
Hard DriveHard DriveHard DriveCooling
Crucial m4 Hitachi TravelStar 2.5" SATA III Intel 330  BitFenix Recon fan controller 
CoolingCoolingCoolingCooling
Corsair H100i Scythe Gentle Typhoon AP-14 x 4 (radiator front... Phanteks 140mm fan (exhaust) Fractal Design R2 Silent 140mm fan (bottom intake) 
OSOSOSMonitor
Windows 7 Professional 64-bit Windows 8 Professional 64-bit (trying it out) Linux Mint Achieva ShiMian 27" IPSB (tempered glass) 
MonitorKeyboardPowerCase
Dell U2412M 24" LZ-GH aluminum/steel TKL keyboard Seasonic G-550 80+ Gold Fractal Design Define R4 
MouseMouse PadOtherOther
Logitech MX518 Monoprice dual-surface aluminum IKEA Dioder light-changing LED strip on the roof Monoprice 10 x 6.25" drawing tablet 
CPUMotherboardGraphicsRAM
Intel i5 2400 3.8GHz turbo boost Gigabyte z68x-ud3h-b3 Sapphire Dual-X 7970 OC Samsung 30nm ULP  
Hard DriveOptical DriveCoolingCooling
Corsair Force 3 LG DVD-RW Zalman CNPS9900MAX-B Noctua NF-S12B ULN 
CoolingCoolingCoolingOS
Scythe Gentle Typhoon AP-14 Fractal Design R2 Silent 140mm fan Bitfenix Spectre 200mm fan Windows 7 Professional 64-bit 
MonitorKeyboardPowerCase
Achieva ShiMian 27" IPSB (tempered glass) Ducky Shine II MX Clears Corsair AX750 BitFenix Survivor in White 
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Logitech MX518 Ikea circle! NZXT Hue Lamptron FC-9 
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post #3979 of 4784
Quote:
Originally Posted by ElevenEleven View Post

Isn't "maximum" resolution simply maximum resolution? If it can do 2560x1600, it should be able to do 1440p.

The issue isn't the HDMI port or what the card can output on the HDMI side. The issue is the signal conversion from HDMI -> DVI.

Single link HDMI signals are identical to single link DVI signals, and this is true up to 165 mhz pixel clock. HDMI and DVI are fully interchangeable to this point.

However, beyond 165 mhz pixel clock, the DVI spec requires the use of a dual link DVI signal, and there is a little peculiarity of how it splits the signal between the two links; it is divided in two, but assymetrically split where the least significant bits of the signal are transmitted on link 2. Thus, although the HDMI signal itself is capable of handling the >165 mhz pixel clock, the conversion is much more complex. Theoretically, a monitor could accept a single link DVI signal at > 165mhz pixel clock, but again that's out of spec and not necessarily what the monitor is designed to handle.

So, for you to run a 1440p monitor through DL-DVI using HDMI, you need a hypothetical "active" HDMI -> DL-DVI adapter that does an deinterlacing of the HDMI signal into two composite SL-DVI signals to emulate the way DL-DVI handles 1440p image data. You cannot use a passive HDMI -> "Dual Link" DVI adapter, which simply maps the HDMI plug to a single link DVI plug.
post #3980 of 4784
Hi folks!

My Shimia QH270-Lite came in yesterday and today I got the power adapter I needed. I've been lurking around this thread because I've having a bit of a problem and it seems to be similar to those of others:

When I turn it on the LED goes blue; the screen does not light up.
After a few seconds the screen flickers, then the LED goes red; the screen itself is still off. It stays here and does this as many times as I care to try, even if nothing is connected.
  • Catalyst recognized the monitor but couldn't really assign anything to it. Win7 > Screen resolution doesn't recognize anything.
  • Tried another non-dual DVI cable and no change.
  • Probably doesn't make a different but I'm using the 5870 2gb Eyefinity edition with 6 display ports. It comes with a dual dvi adapter. Tried running just that monitor; nothing worked.

Others have suggested that the problem lies in a loose connection inside the monitor. I'm willing to test that theory, as I am NOT excited about having to pay to FedEx a monitor back to Korea. Not sure how to get it open though... Saw one video linked which seems to be getting a top layer of glass off. Seems to be a bezel in front of that though. If there are more detailed disassembly instructions I'd love to see them.
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