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Portrait mode -> decreased image quality

post #1 of 10
Thread Starter 
I've just installed a Dell 24" IPS monitor as my secondary display and rotated it to portrait mode (it's primarily going to be my reading / working monitor). Problem is, as soon as I rotate it to portrait (and set to "portrait" mode in Windows for second display), image quality goes way down. It's grainer, colors are worse, and text is not sharp but as if everything is separated into shifted layers of colors (like a yellow halo around the text and other objects). It's not extremely obvious at a quick glance, but very obvious once I actually look at the monitor and read web pages and such. I'm waiting on a dual-link DVI cable to arrive in the mail from monoprice (as my extra died last night) and currently using a cheapo single-link DVI cable -- so maybe that's a problem. But still - everything is perfect in landscape mode, why should it get so messed up in portrait?

System details: I've got a GTX 670 and Intel HD 4000 graphics on. Main monitor is running off the discrete graphics card, and the secondary monitor is connected to the iGPU through the motherboard. I tried connecting to the discrete graphics card - same thing.

How do I fix this! Unless it really is some odd bug with my single-link DVI cable, though the number of pixels' worth of information remains the same...
Edited by ElevenEleven - 10/2/12 at 6:45pm
   
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post #2 of 10
Have you tried the auto-configuration setting available on the monitor?
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post #3 of 10
Thread Starter 
Would that help? I have all the colors tweaked, don't want to mess it up just to try it. All I can tell for sure is that it looks good in landscape mode. As soon as I tell Windows to set it to Portrait mode, quality goes down.

P.S.: AutoAdjust is grayed out as an option. Probably because it's connected via DVI.
Edited by ElevenEleven - 10/2/12 at 7:02pm
   
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post #4 of 10
Thread Starter 
Okay, my new dual-link DVI cable is here. While quality improved somewhat, as expected, the lack of clarity and color separation is still there when in portrait mode. It looks like on white backgrounds, black text is faintly outlined in yellow, for example, and the text itself is not as sharply defined as it is in landscape mode.

I have tried plugging my secondary monitor (Dell 24" IPS) to the computer via the integrated graphics port on my motherboard and to my nVidia GPU directly. I have tried rotating to Portrait mode via Windows monitor settings and via nVidia control panel. I have selected and unselected various options in the nVidia control panel (related to scaling and what not) without any success.

Basically, the image looks clear and sharp in landscape mode. It looks significantly deteriorated in portrait mode. Still cannot find any solution to this frown.gif
Edited by ElevenEleven - 10/4/12 at 3:20pm
   
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post #5 of 10
If it's mainly text that is the issue, it's because ClearType relies on the subpixel orientation. Turn the pixels sideways and it no longer works. If the whole image has gone wonky, then I've got no idea. So in portrait mode you will need to disable ClearType.
Edited by zinfinion - 10/4/12 at 3:25pm
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post #6 of 10
Thread Starter 
Hrmmm... That's a thought... So ClearType doesn't work well with monitors in Portrait mode? That seems wrong, since lots of people use monitors in Portrait mode, for work and what not. Never thought that would be the case. Anything I can do? I would say the whole picture is not quite as good though. Like some yellow discoloration faintly throughout. It's like some bad scaling... except that I tried rotating via nVidia control panel and disabling scaling - no luck.

--
Just tried turning off ClearType - looks even worse.
Edited by ElevenEleven - 10/4/12 at 3:28pm
   
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post #7 of 10
Well text looks pretty atrocious with ClearType off regardless of orientation, so it's not really a good solution. But Microsoft explicitly states that it's not to be used in portrait orientation (very last bullet point at the bottom).

As for the other aspects not being quite right, I really have no clue.

This might be worth trying though:

If you leave the desktop orientation set to landscape and then pivot the monitor to portrait does the image quality change? If so it would seem that it is the display itself looking odd when rotated (color shifts, what have you).

If you leave the monitor in landscape and set the desktop to portrait does the image quality change? If so, then it is something to do with drivers, Windows, etc and not the display.
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post #8 of 10
Thread Starter 
The monitor is mounted in portrait mode, so it's always that way now. When using the default "Landscape" mode via software, it looks very good. When switching to "Portrait" mode via software - image quality deteriorates. So it's nothing to do with viewing angles - it's purely software-based.
   
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post #9 of 10
I didn't figure it would be the display, but at least you've narrowed it down to the card/drivers/Windows. Which frankly stumps me. I doubt there's any difference between my MSI 670 and your ASUS 670, and presuming you are using 300 series drivers there should be no issue. When I switch to portrait the text gets a tad fuzzy (because of the whole ClearType issue) but everything else looks identical in quality to landscape. I wish I could help further but I really have no idea what could be causing this. Sorry I couldn't be of more help and I hope you figure out how to resolve this.
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Fireball
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post #10 of 10
Thread Starter 
Well, thank you for trying!!
   
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Crucial m4 Hitachi TravelStar 2.5" SATA III Intel 330  BitFenix Recon fan controller 
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Corsair H100i Scythe Gentle Typhoon AP-14 x 4 (radiator front... Phanteks 140mm fan (exhaust) Fractal Design R2 Silent 140mm fan (bottom intake) 
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Windows 7 Professional 64-bit Windows 8 Professional 64-bit (trying it out) Linux Mint Achieva ShiMian 27" IPSB (tempered glass) 
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Dell U2412M 24" LZ-GH aluminum/steel TKL keyboard Seasonic G-550 80+ Gold Fractal Design Define R4 
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Logitech MX518 Monoprice dual-surface aluminum IKEA Dioder light-changing LED strip on the roof Monoprice 10 x 6.25" drawing tablet 
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Intel i5 2400 3.8GHz turbo boost Gigabyte z68x-ud3h-b3 Sapphire Dual-X 7970 OC Samsung 30nm ULP  
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Corsair Force 3 LG DVD-RW Zalman CNPS9900MAX-B Noctua NF-S12B ULN 
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Scythe Gentle Typhoon AP-14 Fractal Design R2 Silent 140mm fan Bitfenix Spectre 200mm fan Windows 7 Professional 64-bit 
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Achieva ShiMian 27" IPSB (tempered glass) Ducky Shine II MX Clears Corsair AX750 BitFenix Survivor in White 
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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 
MouseMouse PadOtherOther
Logitech MX518 Ikea circle! NZXT Hue Lamptron FC-9 
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