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[Official] The Qnix/X-Star 1440p Monitor Club - Page 138

post #1371 of 25888
Quote:
Originally Posted by Klouczech View Post

Ok, BCC, green-sum, hulustar and dream-seller are the most reliable sellers.
Which one is the best in your opinion?

X-Star should be the same like QNIX so its better to buy the cheaper one, right?
http://www.ebay.com/itm/New-X-STAR-DP2710LED-27-LED-2560x1440-QHD-Computer-Monitor-Matte-/111063766076?pt=Computer_Monitors&hash=item19dbea943c

http://www.ebay.com/itm/New-QNIX-QX2710-LED-Evolution-2-27-2560x1440-WQHD-Samsung-PLS-Monitor-Matte-/140966017556?pt=Computer_Monitors&hash=item20d23aba14
post #1372 of 25888
Hi guys,

I've been following this thread for a few weeks now but haven't really posted.

I recieved a Glossy Qnix about two weeks ago and had it running at 120hz with no problems using the cable that came with it.

Today, I started having issues where the screen (not the PC) would crash where it has gone all flickery and white/black after being on and working fine for a while (see attatched photo). I then have to manually restart the PC by holding down the power button. I noticed that it liked to crash on certain pages - I think one's that have Flash enabled perhaps or somewhere where there was some sort of visual thing going on. Not sure as it wouldn't crash on Youtube. Seems to be browser related anyway so far

Anyways I put it back down to 60hz for a few hours and seemed fine. I then went back to 120hz and it ran fine until it got to a certain page in the browser where it would again crash and spaz out. I put it back down to 60hz, then back to 120hz, went back to the same page (http://maps.google.com/help/maps/helloworld/desktop/preview/) and it crashed again. So now I know that it's an issue with some GPU related process in the web browser. However when it crashed this time, putting it back to 60hz, I saw that screen started having a sort of shimmer/flicker, which doesn't show up when at 96hz or 120hz. I have now reset CRU back to normal, unpatched my drivers and gone all back to stock which seems to have lessened the shimmer considerably. However if I put the brightness down to the lowest setting, or one click above from that, you can definitely see the backlight flickering.

I'm not too sure what to do at this stage. With the brightness 10 or so clicks up, the flickering of the backlight/edgelight isn't as noticeable but you can still just see it occurring out of the corner of you eye.

I purchased mine from dream-seller, and have 7970 graphics card, running it using the stock cable.

Any help would be appreciated.

post #1373 of 25888
>Flash crash
Try turn off video acceleration in Flash

>Backlight flickering at lowest brightness setting
Normal behaviour caused by on/off threshold of the LED lights.

>Flickering of the backlight occurring out of the corner of you eye
Normal behaviour caused by PWM brightness control of the LED light.

I did experience full screen noise on my screen, but not like what's in your photo.
Changing DVI cable did significantly reduce the scale of the noise.

Sometimes slight noise does return after prolonged power off.
Turning off&on the monitor will stop the noise for the session.
Edited by leo999 - 5/16/13 at 5:01am
post #1374 of 25888
Quote:
Originally Posted by defragger View Post

Hi guys,

I've been following this thread for a few weeks now but haven't really posted.

I recieved a Glossy Qnix about two weeks ago and had it running at 120hz with no problems using the cable that came with it.

Today, I started having issues where the screen (not the PC) would crash where it has gone all flickery and white/black after being on and working fine for a while (see attatched photo). I then have to manually restart the PC by holding down the power button. I noticed that it liked to crash on certain pages - I think one's that have Flash enabled perhaps or somewhere where there was some sort of visual thing going on. Not sure as it wouldn't crash on Youtube. Seems to be browser related anyway so far

Anyways I put it back down to 60hz for a few hours and seemed fine. I then went back to 120hz and it ran fine until it got to a certain page in the browser where it would again crash and spaz out. I put it back down to 60hz, then back to 120hz, went back to the same page (http://maps.google.com/help/maps/helloworld/desktop/preview/) and it crashed again. So now I know that it's an issue with some GPU related process in the web browser. However when it crashed this time, putting it back to 60hz, I saw that screen started having a sort of shimmer/flicker, which doesn't show up when at 96hz or 120hz. I have now reset CRU back to normal, unpatched my drivers and gone all back to stock which seems to have lessened the shimmer considerably. However if I put the brightness down to the lowest setting, or one click above from that, you can definitely see the backlight flickering.

I'm not too sure what to do at this stage. With the brightness 10 or so clicks up, the flickering of the backlight/edgelight isn't as noticeable but you can still just see it occurring out of the corner of you eye.

I purchased mine from dream-seller, and have 7970 graphics card, running it using the stock cable.

Any help would be appreciated.

[*IMG ALT=""]http://www.overclock.net/content/type/61/id/1463179/width/350/height/700[/IMG]

Just to note, my only-several-days-old panel has backlight dimming/brighter flicker at the lowest setting too, as well as one to two clicks above that. Once I go to a few or higher clicks the flicker goes away. EDIT: Read leo999's post above mine.

@leo999, yeah, my Monoprice cable is definitely better at 120hz than my stock one... perfect image other than color uniformity for me (which isn't too bad for a panel).
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post #1375 of 25888
Ah okay thanks for the input. I guess the flickering out of the corner of the eye was always there, but I never noticed it until all these problems occurred. Maybe I am being a bit paranoid now and also my eyes hurt from staring at the monitor for so long.

However the flickering at 60hz before turning unpatching my drivers, resetting CRU was definitely very noticeable, the same level of flickering that occurs at the lowest brightness. Got me quite scared.

The monitor crash was definitely weird. I did try disable hardware acceleration by going into the Flash menu in the browser, but the option was not there. I think this crash is definitely to do with some sort of driver/software issue than hardware so I am confident it can be fixed with some tinkering and trail-and-error methods.

Guess I will leave it for a couple of days and try to the start the overclocking process again. Perhaps get a new DVI cable too.
post #1376 of 25888
Quote:
Originally Posted by bhardy1185 View Post

Yes, the green light on the brick is green. The flash I saw was a white-ish color. I would compare it to the bleed color in some of these photos. It is a white/yellow tint. Flashes the entire screen then turns black.

I am coming from the 25" screens. I actually have on still connected along with the Qnix. Strange thing is, the computer sees the screen, it just will not power on. I will attempt the squeezing of the prongs, but with it powering the brick, I wouldn't think that would be the cause.

One simple and common possibility is the wrong type of DVI cable or DVI port.

Make sure you got dual link DVI cable:
http://en.wikipedia.org/wiki/Digital_Visual_Interface

The cable that came with my monitor was single link DVI.
The monitor still got detected by Windows becasue the DCC channel on the wrong DVI cable was still functional.

BTW what video card are you using?
If your video card got another DVI port, try it as well, since not every DVI port is dual link inside.
If you want to run the monitor from onboard Intel HD graphics, you need to use DTD Calculator to add a 40hz DTD registry entry.
Edited by leo999 - 5/16/13 at 5:31am
post #1377 of 25888
Quote:
Originally Posted by leo999 View Post

One simple and common possibility is the wrong type of DVI cable or DVI port.

Make sure you got dual link DVI cable:
http://en.wikipedia.org/wiki/Digital_Visual_Interface

The cable that came with my monitor was single link DVI.
The monitor still got detected by Windows becasue the DCC channel on the wrong DVI cable was still functional.

BTW what video card are you using?
If your video card got another DVI port, try it as well, since not every DVI port is dual link inside.
If you want to run the monitor from onboard Intel HD graphics, you need to use DTD Calculator to add a 40hz DTD registry entry.

Thanks. I think this might be what is wrong. I am using the cable that they provided because it said it came with a dual link DVI cable... Here are the steps that the seller has given me to test. I have done all but replace the cable with no success. Next step is to buy a new cable and test it out. As for the vc, it is below in my sig. Sapph 7970. Here is what they said:

Well received your photos.
As you think, I also do not think it damaged monitor.

Your problem is now "black screen"
Monitor is powered on, but you can not see windows screen.

In this case, 2 possibility is there.

1. screen resolution rate is not matched.
2. DVI-dual link cable.

First of all,

#1
Connect your 25" monitor.
Only one.

#2
and then, set the resolution rate as 1024*768 or less

#3
Turn off the computer

#4
connect QNIX QX2710 monitor only

#5
Check out your DVI-D cable pins are not bent at both side.

#6.
Turn on the computer.
Then you can see 27" screen.

FYI,
Monitor LED is off, that means your monitor does not get the signal from graphic card.
In most case, resolution rate setting failure.
Try to 2~3 time like above method, if you failed.

Good luck.

Best regard from Korea
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post #1378 of 25888
Yeah, again, mine stopped displaying any image recently until I screwed the cable in super tight on both top and bottom. It really needs a proper connection.
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post #1379 of 25888
I have connected and disconnected that cable about 10 times, screwed in as much as I can both at the monitor and card. Very well could be a bad cable. I really don't feel like searching for the link in past past. Can someone please link the most commonly purchased dual link DVI cable? Thanks.
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post #1380 of 25888
Quote:
Originally Posted by mspamed View Post




Yeah I have taken a pic of the specs from the manual . The X-star also have a 6ms response time.

Cool. Thanks to all your info. I purchased the x-star today from hulustar. I'm not sure why they have it listed as a 8ms panel but they are probably just using standard product pictures. Got free expedited shipping with a 0-2 pixel defect. Am getting a squaretrade warranty when it arrives as well. It just seems easier dealing with a company over here then the guys over in Korea. Plus no one knows how long these monitors will last. So a 3 year seems like the best bet.
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