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vishank said:How is the pivot working for you guys?
When I rotate mine, it doesnt go a full 90 degrees anymore... more like 80-85 degees.
I am contemplating of exchanging it but don't want to end up with one with a dead pixel....
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TheRapture said:You are using the same display? Or you mean the images here posted look the same...? I assume you have the display, and that yours has the banding at either refresh rate using a dvi cable....did you reboot after changing everything *just for grins* ?
whiteboy said:DVI refresh rates changed via Nvidia custom resolution display panel.
No noticable changed observed. I don't think we can confirm if the refresh rate override works yet.
kabttu said:Just bought this monitor today at BB, love it so far. Have read through most of this thread and have changed the refresh rate as recommended. The only issue I have and I'm not sure if it's because of something I did or if I may have a defective unit, is whenever I try and use the USB port on the monitor with my flash drive, I get a 'USB hub has exceeded it's power' error. Anyone else having this issue?
Lepy said:Also, interestingly enough, my PC has the same stats as OlIv0rIolI, except an x2 3800+ (though the 6800 gt agp is probably the important factor), and forcing the monitor into 75hz doesn't do a significant job if any of clearing up the banding (which isn't really that bad imo), however, my mouse response is much better.
I'm hooked up using the $12 Radioshack DVI cable, and I haven't got around to trying out the VGA cable since I'm lazy. However, I am extremely happy with the gateway, and I can't wait to get a new video card(s) and a next gen console to fully take advantage of it.
I was about to leave to take it back in a few hours because of the banding, checked the thread and now I'll just replace it for another and hopefully get a panel that doesn't tint /everything/ pink even when I set red to 0.OlIv0rIolI said:I feel kinda sorry for those who returned their monitor because of color banding problems, just shows that patience is the key especially with new products
OlIv0rIolI said:For those of u who solved the banding issue, what graphix card r u using?
Also where can I buy some dual link dvi-D cables, the ones at best buy cost $80 for 6ft!
TheRapture said:and perhaps the cable type does have something to do with it...I am using a dual link DVI-D cable...
I have one stuck white pixel on this new one, tried doing that but I haven't had any luck as of yet.Scunner said:Clearing stuck pixels is a piece of cake. I found one on my latest Gateway, downloaded UDPixel (find the link at widescreengamingforum.com), ran it with a 10ms cycle time over the pixel, and gently rubbed the monitor with a microfiber cloth (qtip would also work, I suppose). Within a few seconds, the pixel was unstuck, and responding to all colours.
TheRapture said:It does for some, did you see my pics above? There is a rather large difference in banding between the two settings, using the exact same cable....of course if your display has the issue, both would look the same....have you guys tried using the VGA connection to show how much better it gets over the stock DVI setup?
Scunner said:It doesn't. I've used a single-link and dual-link cable with no change in banding. I also added 75Hz and saw no improvement in banding with DVI. No problems with VGA, however. I added 75Hz as an available option under VGA, and it seems to be working fine.
Higher resolutions and refresh rates dictate which DVI cable you should use. The maximum clock frequency of a single-link cable is 165Mhz. The native resolution of the FPD2185W is 1680x1050 @ 60Hz which gives a clock frequency of 105Mhz. If you include 5% blanking, the frequency goes up to 111MHz. At 1680x1050 @ 75Hz the clock frequency is 132Mhz, or 138Mhz with 5% blanking. There is no need for a dual link DVI cable on this monitor.
I've also got a 7800GTX.
whiteboy said:So what would account for the monitor not detecting 75Hz correctly, and the banding disappearing on some and staying on others?
Scunner said:My guess is either a hardware problem on the DVI receiver (monitor) end, or the monitor's decoding software is doing a crap job of decoding the video stream.
I spent a while today reading the DVI specification, to see if it would provide any clues, but nothing jumped out.
It's not likely to be the actual LCD panel's fault (I think it's a Samsung?), because VGA renders grayscale gradients to a higher degree of accuracy. I'll keep digging. There's bound to be some information somewhere on likely causes of these problems.
The ideal brightness for normal use is 110cd/m^2 if I remember correctly. Considering 100 should be 300cd/m^2 or so, the 80+ to get rid of the buzzing probably isn't too good for the eyes.Andrmgic said:I think this monitor is wearing out my eyes much more quickly than my old one..
The brightness level required to stop the buzzing is killing my eyes.. this display is going to have to go back. Guess i'll have to spend more if I want features like this without the headaches.
This sound emanates from the backlight inverter and depends on the selected brightness value, but also on the vertical frequency.
Failure or not? This is something one can argue about and manufacturers react very differently to claims. Some exchange the monitor no questions asked, other refuse to repair since the sounds are within the specified range.
Next to the settings of vertical frequency and brightness, how good you can hear these sounds also depends on the acoustical shielding of the monitor, or in other words, how large the ventilation slots in the casing are.
The technical background is as follows:
The backlight inverter is the culprit here. It serves as power supply for the lamps. It generates the high frequency alternating voltage required for running the lamps. The frequency of this alternating voltage is way above the range of human audibility. But it is also used for changing the lamps' brightness and this works as follows: The brightness is changed by a so called pulse width modulation, which means that the lamps are rapidly turned on and off at a varying ratio of turn-on time and turn-off time. The longer the On time is compared to the Off time, the brighter it gets. The frequency used for this modulation lies within the human range of audibility however, namely at around 100 to 400 Hz. And that is exactly the problem.
This periodic "turning on and off" of the lamps causes a corresponding fluctuation of current, particularly in the transformer of the backlight inverter. This results in a mechanical resonation in the transformer which then, in turn, becomes audible. This effect corresponds to that of 50 Hz power transformers which are well known for their buzzing sound, too. These are usually encapsulated in order to reduce the mechanical resonation of the coil.
Unfortunately, all backlights inverter work according to this principle. How much one will hear the mechanical resonations depends on the design of the inverter and on how tightly the casing is sealed, of course.
Ankle said:The ideal brightness for normal use is 110cd/cm^2 if I remember correctly. Considering 100 should be 300cd/cm^2 or so, the 80+ to get rid of the buzzing probably isn't too good for the eyes.
I have mine at 35 and find it more than bright enough. Of the three of these monitors I've used, none experienced the buzzing from the power supply so you might want to try swapping for another one so you can turn the brightness down to a more comfortable/safe level. (Well there was buzzing, but only if I put my ear up to the back of the monitor and I have what I consider to be very good hearing.)
anasazi said:will this DVI cable work?
anasazi said:i'm going to buy one of these things from bestbuy when i get back into town.
the biggest advantage in my mind is that i can return this to bestbuy right down the street, rather than call up india and fight with someone who doesn't speak english for 3 hours.
Don't know, if they listed the minimum brightness I could figure it out. You can measure it using a spectroradiometer, I don't suppose anyone has one laying around? I would like to know what setting equals 110 as well.OlIv0rIolI said:I care about my eyes alot nowadays since I got glasses because of monitors. How do u figure out what brightness u should use for monitors given 300cd/cm^2
kabttu said:Just bought this monitor today at BB, love it so far. Have read through most of this thread and have changed the refresh rate as recommended. The only issue I have and I'm not sure if it's because of something I did or if I may have a defective unit, is whenever I try and use the USB port on the monitor with my flash drive, I get a 'USB hub has exceeded it's power' error. Anyone else having this issue?
Wolf355 said:I have a similar problem. My USB ports just won't work anymore. I bought this display yesterday and had plugged my Razer copperhead into the display. It was working ok and then it stopped. Now Windows say that it doesn't recognise the USB device (Hub).
So I gave Gateway online support a try...much good that was! ***sigh*** the idiot that answered the call was totally incompetent. He took over my comp for an hour and played around like someone using XP for the first time. Finally, he asked me to pop the EZtune disk in the CD drive and he proceeded to reinstall the software over the existing EZtune. He said this woukld fix the problem...and since we were in a direct chat session the connection got lost we HE restarted te computer through the ''support software'' remote desktop thingy....lol....what a dolt!
Needless to say that this did NOTHING to fix the problem. I am now thinking about bringing this display back to BB and getting a refund. This customer service experience really freaked me out. It'S too bad cause there are alot of things that I like about this display.
I think I'll just go with the 23'' L2335 from HP or with the Apple 23''.
What do you guys think about those displays? You think I'll still be able to play games if I turn the res down? For apps it must be cool to have so much desktop realestate though!!!
duker733 said:Ok I picked up this monitor a couple days ago and i really like it except I cannot for the life of me figure out how to force the refresh rate to 75hz from 60. I have an ati 9700pro card running the latest catalyst 5.12 drivers. I cannot get the refresh rate up to 75 hz.
Another thing I found is there are no drivers for this monitor. None on gateway's site at all. Yes there is ez tune software but no actual drivers because xp still see's this monitor as a plug n play monitor. Any suggestions?
duker733 said:Ok above is my first post. How the hell do I get my computer to force 75hz refresh rate on this thing? I really want to try it out.