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LG 34UC88/34UC98/34UM88 Monitors Thread - Page 5

post #41 of 959
Hi! I just recieved my new LG 34UC98 and it works great except for one thing, when the monitor goes into stand-by when I for example turn my PC Off, the external power supply for the monitor is making a very high pitched noise that while not extremely loud, is definetly audible.

Is this behaviour normal? Have anyone else had the same experience with this or similar monitors?

So far the monitor has blacked out once, and there seems to be some random artifacting coming up on the monitor randomly on screen using my GTX 980 and the DP cable supplied with the monitor. This is also with 10bit color enabled.

[EDIT:] Now it seems the monitor is blacking out every 2 minutes and getting all kinds of artifacting while running 10bit color with the supplied cable.

[EDIT:] The blacking out part seems to have been resolved, or it atleast has not happened for the last hour or so, but more testing is still required. But the PSU of the monitor I have found now has a slight hum when on. The hum goes to a whine when the monitor is in standby and goes to a slightly higher pitches whine when monitor is completely Off.

Has anyone else here noticed there monitors PSU's making any noise?
Edited by Vizuka - 5/19/16 at 1:46pm
post #42 of 959
Thread Starter 
Quote:
Originally Posted by Vizuka View Post

Hi! I just recieved my new LG 34UC98 and it works great except for one thing, when the monitor goes into stand-by when I for example turn my PC Off, the external power supply for the monitor is making a very high pitched noise that while not extremely loud, is definetly audible.

Is this behaviour normal? Have anyone else had the same experience with this or similar monitors?

So far the monitor has blacked out once, and there seems to be some random artifacting coming up on the monitor randomly on screen using my GTX 980 and the DP cable supplied with the monitor. This is also with 10bit color enabled.

[EDIT:] Now it seems the monitor is blacking out every 2 minutes and getting all kinds of artifacting while running 10bit color with the supplied cable.

[EDIT:] The blacking out part seems to have been resolved, or it atleast has not happened for the last hour or so, but more testing is still required. But the PSU of the monitor I have found now has a slight hum when on. The hum goes to a whine when the monitor is in standby and goes to a slightly higher pitches whine when monitor is completely Off.

I had similar PSU behavior on Sasmung S34E790C, it was quiet while monitor was on but it was whining when it was on standby or off, but still connected to power. However on my 34UC98 this is non existent and didn't heard about someone having this issue.

10 bit is not working well for me either, I don't get any serious artifacts, only some white blinking stripes on the right side of the monitor, but I don't know if this is monitor or graphics driver issue. I just keep it on 8 bit, this monitor is not true 10 bit, only 8 bit + FRC, so I don't know if it even support 10 bit option in control panel, maybe it has to be kept at 8 bit, I don't know. Now after I upgraded to Win10 choosing 10 bit in Nvidia Control Panel causes my ICC profile to reset and back to default, to the point where I have to use 'Restore system' feature to make it work again, so this looks like software based issue.

As for this blacking out... I don't know, I never had any issue with this. Although one of customer reviews on Amazon say that guy got monitor with this issue, so maybe you got it also. Faulty units always happen at some degree, to every product in the world. All that you can do now is just using it and testing if you say that this problem dissapeared for now.
post #43 of 959
Quote:
Originally Posted by Krzych04650 View Post

I had similar PSU behavior on Sasmung S34E790C, it was quiet while monitor was on but it was whining when it was on standby or off, but still connected to power. However on my 34UC98 this is non existent and didn't heard about someone having this issue.

10 bit is not working well for me either, I don't get any serious artifacts, only some white blinking stripes on the right side of the monitor, but I don't know if this is monitor or graphics driver issue. I just keep it on 8 bit, this monitor is not true 10 bit, only 8 bit + FRC, so I don't know if it even support 10 bit option in control panel, maybe it has to be kept at 8 bit, I don't know. Now after I upgraded to Win10 choosing 10 bit in Nvidia Control Panel causes my ICC profile to reset and back to default, to the point where I have to use 'Restore system' feature to make it work again, so this looks like software based issue.

As for this blacking out... I don't know, I never had any issue with this. Although one of customer reviews on Amazon say that guy got monitor with this issue, so maybe you got it also. Faulty units always happen at some degree, to every product in the world. All that you can do now is just using it and testing if you say that this problem dissapeared for now.

Yeah, I am going to keep testing tomorrow, and have a chat with LG to see what they say. I am using a third party power cable from the PSU to the wall outlet since I live in Sweden and had to import the monitor from the UK. But maybe a power adapter would work better? Hmm, I'll have to ask LG I guess.. Maybe I can even get them to send a nordic cable to me ;P
post #44 of 959
Thread Starter 
Quote:
Originally Posted by Vizuka View Post

Yeah, I am going to keep testing tomorrow, and have a chat with LG to see what they say. I am using a third party power cable from the PSU to the wall outlet since I live in Sweden and had to import the monitor from the UK. But maybe a power adapter would work better? Hmm, I'll have to ask LG I guess.. Maybe I can even get them to send a nordic cable to me ;P

There may be some connection between this. Just investigate the issue and post the solution here later.
post #45 of 959
Ok, I have now realised LG customer support sucks. At least their "Live Chat" does. They took around 30min to answer my questions and they did not even provide an answer to the question I was asking..

Well anyways, it seems not the monitor is losing signal for a couple of seconds every once in a while, I am also seeing some weird artifacting while using the monitors sometimes.. It is hard to explain, it is like some gray lines popping up for a split second in random parts of the monitor. Don't know what to do now. The place I bought it from does not have any more of these is stock so if I return it, that would mean being out of a monitor for maybe another month. (I have no back-up monitor.)
post #46 of 959
Quote:
Originally Posted by Vizuka View Post

After speaking to an LG rep, it seems this monitor will take a long while if it even ever comes to Sweden, so I was thinking about importing it from the UK. The thing is, UK uses a different power cable standard, so I would like to know exactly what cables are included in the package. If anyone here who have bought it could tell me what power cables and adapters are included, that would be great! Especially if said person is from the UK smile.gif

The type of cable that plugs into the wall that I would need, would be a type F/E+F standard cable, like this one: https://upload.wikimedia.org/wikipedia/commons/5/5d/CEE_7-7.jpg

I was trying to look for photos of the monitors powerbrick and the like to try to see what kind of cable it uses that plugs into the powerbrick and then into the wall, but I was unable to find one, if you could tell me what kind it is or even better take a picture of it, that would be great!

And another question, do you think it would be worth to import it? Or should I wait, the thing is, I spoke with some of the bigger computer/tech stores here and they said it could take up to a couple of months before the monitors arrive, they just have no clue right now, and I currently have no monitor I could use while waiting, so this is really a pain in the ass and I would really like this monitor.
Quote:
Originally Posted by Vizuka View Post

Ok, I have now realised LG customer support sucks. At least their "Live Chat" does. They took around 30min to answer my questions and they did not even provide an answer to the question I was asking..

Well anyways, it seems not the monitor is losing signal for a couple of seconds every once in a while, I am also seeing some weird artifacting while using the monitors sometimes.. It is hard to explain, it is like some gray lines popping up for a split second in random parts of the monitor. Don't know what to do now. The place I bought it from does not have any more of these is stock so if I return it, that would mean being out of a monitor for maybe another month. (I have no back-up monitor.)
Rule out everything else before u returm it.
Cable issue (not connected properly), GPU not in the PCIE slot proper etc.
post #47 of 959
Thread Starter 
Quote:
Originally Posted by Vizuka View Post

Ok, I have now realised LG customer support sucks. At least their "Live Chat" does. They took around 30min to answer my questions and they did not even provide an answer to the question I was asking..

Well anyways, it seems not the monitor is losing signal for a couple of seconds every once in a while, I am also seeing some weird artifacting while using the monitors sometimes.. It is hard to explain, it is like some gray lines popping up for a split second in random parts of the monitor. Don't know what to do now. The place I bought it from does not have any more of these is stock so if I return it, that would mean being out of a monitor for maybe another month. (I have no back-up monitor.)

Yea LG customer support is just amazing, they are just posting copy-paste answers that are not referring to anything one is asking them about biggrin.gif

Like I said, artifacts are on 10bit setting. I asked about it on TFT Central and they say that I need Quadro GPU for proper 10bpc support, GeForce doesn't support it properly. Nvidia claims that this is supported since GeForce 200 series are just not true, this is true ONLY for fullscreen DirectX appliations. Leave it on 8bpc.
Edited by Krzych04650 - 5/20/16 at 7:44am
post #48 of 959
Quote:
Originally Posted by MuscleBound View Post


Rule out everything else before u returm it.
Cable issue (not connected properly), GPU not in the PCIE slot proper etc.
Everything is connected properly, trust me. But I am now going to try re-installing my GPU drivers just to make sure it is not that. But the whining from the power brick will however still be there, and it is quite annoying, at least when the monitor is in "Stand-By".

And I am also going to try having another live-chat with LG. I have also sent them an e-mail.
Quote:
Originally Posted by Krzych04650 View Post

Yea LG customer support is just amazing, they are just posting copy-paste answers that are not referring to anything one is asking them about biggrin.gif

Like I said, artifacts are on 10bit setting. I asked about it on TFT Central and they say that I need Quadro GPU for proper 10bpc support, GeForce doesn't support it properly. Nvidia claims that this is supported since GeForce 200 series are just not true. Leave it on 8bpc.
Well, why are so many other people able to use 10-bit without issue? And could you link me the thread where you ask that, or a screenshot of the conversation? smile.gif
Edited by Vizuka - 5/20/16 at 7:41am
post #49 of 959
Quote:
Originally Posted by Vizuka View Post

Everything is connected properly, trust me. But I am now going to try re-installing my GPU drivers just to make sure it is not that. But the whining from the power brick will however still be there, and it is quite annoying, at least when the monitor is in "Stand-By".

And I am also going to try having another live-chat with LG. I have also sent them an e-mail.
Well, why are so many other people able to use 10-bit without issue? And could you link me the thread where you ask that, or a screenshot of the conversation? smile.gif
Does it happen with HDMI connection? Try a different DP cable.
post #50 of 959
Quote:
Originally Posted by MuscleBound View Post

Does it happen with HDMI connection? Try a different DP cable.
Does the supplied HDMI cable support 10-bit color? And, well, the only other DP cable I own is DP 1.1 and it does not support 10-bit since you need to enable DP 1.2 on the monitor for 10-bit color :/

And as for the power brick making a whining noise on stand-by, have anyone else experienced this? If you're not sure, try putting your monitor in stand-by and then putting your ear pretty close to the power brick to see if you can hear it. It would be greatly appreciated! smile.gif
Edited by Vizuka - 5/20/16 at 7:46am
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