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LG 48CX

I just hooked up this tv to my 3090, it is only giving me 4k 60hz though.. what settings do I need on the tv in order to get 4k 120? I am using hdmi 4 and set it to PC mode.. and tv is in game mode.
 
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I just hooked up this tv to my 3090, it is only giving me 4k 60hz though.. what settings do I need on the tv in order to get 4k 120? I am using hdmi 4 and set it to PC mode.. and tv is in game mode.
Did you scroll down the resolution list in Windows and select the 3840x2160 under the “PC” heading?
 
Did you scroll down the resolution list in Windows and select the 3840x2160 under the “PC” heading?
Hmm, I will double check that.. I was just looking at the resolutions at the top of the list and max it went to was 60hz.

Yep, I'm dumb, that was it.. thanks! :)
 
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hey so I have increased the size of text, apps and other items to 200% for this display and have also changed some ease of use display settings like making text to 125 and increasing the size and changing the color of the cursor and mouse pointer. This is working out well when I'm viewing the screen from a distance but I have noticed that some apps don't respond when I click any fields in them. Media Monkey music player is one such app. I cannot even navigate to the settings menu in it to see about adjusting font size because nothing is responsive now in the app except the mouse scroll wheel. (The app isn't locking up, it simply doesn't respond to any mouse clicks.)

Is there a way to troubleshoot/fix such issues in apps? I am assuming it's caused by my recent change of the font size and cursor and mouse pointer in Windows 10.
 
I see on yt videos of people changing settings on the tv under picture and advanced or other settings menu (don't remember what its called exactly) It has gamma white balance etc options in there.. Mine are all greyed out.. ideas why that is? (latest firmware installed). I am in Game picture mode and hdmi input set for PC.
 
I see on yt videos of people changing settings on the tv under picture and advanced or other settings menu (don't remember what its called exactly) It has gamma white balance etc options in there.. Mine are all greyed out.. ideas why that is? (latest firmware installed). I am in Game picture mode and hdmi input set for PC.
PC mode will disable some settings.
 
I'm continuing to have some issues with maintaining a stable sync, primarily on power-up or resuming from sleep. Perhaps 50% of the time, when Windows boots to the desktop I either get no picture, occasional "invalid format" messages or various rates of blinking. Sometimes a reset of the PC fixes this. That said, unplugging the HDMI cable and re-inserting it *almost always* fixes the issue and gives me a Windows desktop. Still a possible cable issue? (I am using the Zeskit 2m cable; I have a 1m on order now.)

Running 4k / 120 / 8bpp. I have found some skittishness with signal at 10bpp. 12bpp is not showing up as an option for me.
 
Yes cable issue. I had the same problem and a different cable resolved it. FYI the Zeskit cables never worked for me and I ended up with some random cable from eBay.
 
So what are the thoughts now on burn-in on these screens using this for primary desktop display?
 
I got the CX at launch. Used 16 hours a day, everyday, at 120 nits on the desktop with automatic dimming and screen shift disabled. No sign of burn-in yet.

What is your daily routine, I mean do you browse internet for hours each day, using like Chrome with bookmarks bar on?
Do you often use Office software like Excel or Word so you have large white area on screen for longer period of times?
I'm guessing you keep taskbar hidden and no desktop icons.
 
What is your daily routine, I mean do you browse internet for hours each day, using like Chrome with bookmarks bar on?
Do you often use Office software like Excel or Word so you have large white area on screen for longer period of times?
I'm guessing you keep taskbar hidden and no desktop icons.
I do keep some static windows open most of the day assuredly, that is my concern.
 
So what are the thoughts now on burn-in on these screens using this for primary desktop display?
Mine is fairly new I’ve probably got 300 hours on it so far, used for gaming and office work (Excel, Outlook, Word, etc.) and I’ve got no signs of burn in. I’m not doing anything overly conservative to protect it, just turn it off if I know I’m going to step away from the computer for 20+ minutes.
 
I''ve got 384 hours on mine right now... honestly I'm surprised it's only that much so far. Just about a month of ownership now. So we'll find out in a year or so since I'll put 3500-4000 hours on it.
 
So what are the thoughts now on burn-in on these screens using this for primary desktop display?
6 months of 8+ hour desktop use and no burn-in. 120 nits brightness, dark mode in use wherever it is available and taskbar/topbar/dock hidden. Black background. I turn the display off when taking longer breaks.
 
7 months here and 10+ daily hours, 80 nits for SDR because the room is very dark. Same as above, dark mode when possible, auto-hide taskbar, black background and I turn it off with the remote when walking away for a few minutes or playing in VR (not a full power cycle though, I do those only when it's going to be several hours).
 
7 months here and 10+ daily hours, 80 nits for SDR because the room is very dark. Same as above, dark mode when possible, auto-hide taskbar, black background and I turn it off with the remote when walking away for a few minutes or playing in VR (not a full power cycle though, I do those only when it's going to be several hours).
How do you do a full power cycle? The remote does not turn it off?

This reminds me, I have 3 lg tvs on this setup, the cx 48" and 2 nano 85 49" screens.. but the remote works on all 3, is there a way to change it so they are individual. There is an ID setting in the menu, I changed that but does not do anything it seems.
 
How do you do a full power cycle? The remote does not turn it off?

This reminds me, I have 3 lg tvs on this setup, the cx 48" and 2 nano 85 49" screens.. but the remote works on all 3, is there a way to change it so they are individual. There is an ID setting in the menu, I changed that but does not do anything it seems.

If you find out let me know. I have my CX at my desk but my B7 is the living room TV and sometimes my wife turns it on and it turns off my CX mid game :(. Only the power buttons are shared between them, everything else works independently.
 
What is your daily routine, I mean do you browse internet for hours each day, using like Chrome with bookmarks bar on?
Do you often use Office software like Excel or Word so you have large white area on screen for longer period of times?
I'm guessing you keep taskbar hidden and no desktop icons.
2831 hours on the TV. HDR is permanently enabled on the desktop with SDR content at 120 nits. 90% of the time the browser is maximized with the icons, address bar, and scrollbar statically in place. I've hidden just the Taskbar but am considering unhiding it as it's buggy. I'm fine with junking the TV in 2 years, as a comparable monitor like PG32UQX / Predator X32 would cost $4000.
 
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Update.. I did get Emby to work launching an external player - in my case currently mpc-hc + mad VR passing through the HDR metadata - but it should work with any since it's just pointing to the file location like a shortcut.

I set up the external player's options so that once it's launched, the ext. player's (mpc-hc) settings then automatically play in full screen on the LG CX monitor # , as I have three monitors. It's nice that it can streamline all of that right from the emby index/thumbnail launch now. It's also great because the external player supports HDR where plex and emby do not.

It works very well but just so you know you have to set up the external player option in the Emby theater app (rather than using the emby server as a player) and it won't work unless you have the Emby premier license / serial number installed in the Emby server itself.

............


How do you do a full power cycle? The remote does not turn it off?

This reminds me, I have 3 lg tvs on this setup, the cx 48" and 2 nano 85 49" screens.. but the remote works on all 3, is there a way to change it so they are individual. There is an ID setting in the menu, I changed that but does not do anything it seems.
With IR remotes it's easy to shield the receptor on the tv or to use a repeater receiver near you and the transmitter pointed directly at the tv's receptor on the other end.. but RF remotes aren't so easy. You can use your phone or a tablet to control the TV remotely over WiFi though so that might end up being a better option if you keep having issues.

https://www.lg.com/us/experience-tvs/remote-apps

What is your daily routine, I mean do you browse internet for hours each day, using like Chrome with bookmarks bar on?
Do you often use Office software like Excel or Word so you have large white area on screen for longer period of times?
I'm guessing you keep taskbar hidden and no desktop icons.

I didn't get mine that long ago and with the holidays I haven't used it as much. I keep a 43" 4k on the side(s) for desktop/app use and mostly use the CX for fullscreen videos (setting my player to auto launch full screen on it) , and full screen games. Black background, no taskbar. I dragged the taskbar manually to my side monitor on the top edge and locked it there, actually locked away with taskbar hider via hotkey to show/hide toggle.
 
How do you do a full power cycle? The remote does not turn it off?

This reminds me, I have 3 lg tvs on this setup, the cx 48" and 2 nano 85 49" screens.. but the remote works on all 3, is there a way to change it so they are individual. There is an ID setting in the menu, I changed that but does not do anything it seems.

If you disable the Quickstart option (which I did because it's buggy) turning it off with the remote does a full power cycle (keep the TV connected to power and it still won't prevent the automatic pixel refresher), you can notice because there's a noticeable delay when turning the TV back on (and also a little "click" sound from inside the TV). That's what I mean.

If you have handshaking issues though (haven't had them myself for over a month now) then you will most likely trigger them almost every time by doing that so may need to restart the TV more than once to get it working right. That's what I suffered from until recently.
 
OK, mine is on the way. Going to give it a shot.
Brother I think you will love it. You think the JS9000 was good? This is better in every way. Input lag, 120Hz, VRR, ridiculous image quality. Just try to vary your content from time to time and you should be fine. I've used OLEDs for over 3 years now as my daily drivers and haven't had any issues. The CX is a stunning display!
 
Brother I think you will love it. You think the JS9000 was good? This is better in every way. Input lag, 120Hz, VRR, ridiculous image quality. Just try to vary your content from time to time and you should be fine. I've used OLEDs for over 3 years now as my daily drivers and haven't had any issues. The CX is a stunning display!
Yeah, I have been waiting for a jump-off point from this JS9000 and like what you say above, it seems to be the time.
 
You will look at the very top quality LCD monitors and TVs and be like oO From now on.

I do have a second 47" LCD TV as monitor #2 that I toss stuff on that will stay static for hours. As cheap as big screens are now, it's no big deal for this kind of use.

I would strongly recommend a dual monitor setup for this reason. It's what makes dealing with the OLED easy. If I had to constantly think about whether I CAN leave something up all day, vs just tossing it on monitor #2... yeah that would be really annoying.
 
You will look at the very top quality LCD monitors and TVs and be like oO From now on.

I do have a second 47" LCD TV as monitor #2 that I toss stuff on that will stay static for hours. As cheap as big screens are now, it's no big deal for this kind of use.

I would strongly recommend a dual monitor setup for this reason. It's what makes dealing with the OLED easy. If I had to constantly think about whether I CAN leave something up all day, vs just tossing it on monitor #2... yeah that would be really annoying.
Well, a $2000 JS9000 a few years ago says this ain't my first 48" 4K rodeo. ;) Just like a good jumping off point for spending money and this one seems to be it. My desk setup does not facilitate a 48" and a secondary display so that has been what is holding me back. We will see.
 
Any changelog on fw 03.21.09 compare to previous version? I just had it popup to update today but I decided not to, since I haven't had any issue. (Though I don't have a 3080 yet, so I don't have VRR or raised gamma issues. lol)
 
Any changelog on fw 03.21.09 compare to previous version? I just had it popup to update today but I decided not to, since I haven't had any issue. (Though I don't have a 3080 yet, so I don't have VRR or raised gamma issues. lol)
It supposedly fixes the raised blacks while using HDR/Dolby Vision
 
Randomly I will lose signal to my monitor. The image just freezes for a split second and then the screen goes blank and say "No signal" for then to imidiately go back to a signal where it will say the usual "Game mode". I see that Windows Night mode/light does not work after this. So I have to disable and enable it. This happens in idle just browsing the internet.

Is this my screen, GPU or Windows that is causing this? I cannot believe its the cable as I have tried to different with no change. My setup is of cause the 48" CX and then a RTX 3070 TUF OC from ASUS.
Check the event viewer to see if the nvidia display driver stopped responding, if so, updating your bios and setting the gpu mode to performance in the nvidia panel may fix it (it fixed the issue here).

If that's not the issue look at the tv's hdmi diagnostic menu, if too many errors show up, you may have to change your hdmi cable (preferably to a hdmi 2.1 certified cable).
 
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Can someone explain how to disable auto brightness that dims the screen when the background is predominately white? I didn't see that in the various settings. Thanks.

Loving this TV for computer use. I was using 2 30" HP IPS monitors since 2005 or so, so this is a massive upgrade. 4K nature documentaries as suggested by a [H] forum member do look fantastic, as does scifi like Blade Runner, Serenity, and The Expanse.
 
Can someone explain how to disable auto brightness that dims the screen when the background is predominately white? I didn't see that in the various settings. Thanks.

Loving this TV for computer use. I was using 2 30" HP IPS monitors since 2005 or so, so this is a massive upgrade. 4K nature documentaries as suggested by a [H] forum member do look fantastic, as does scifi like Blade Runner, Serenity, and The Expanse.
It can’t be completely disabled unless you use the service menu (so I’ve read, haven’t actually done). Also there are a bunch of YouTube 4K HDR videos of people walking through city streets at night (Tokyo, etc) that look fantastic on this TV.
 
Can someone explain how to disable auto brightness that dims the screen when the background is predominately white? I didn't see that in the various settings. Thanks.

Loving this TV for computer use. I was using 2 30" HP IPS monitors since 2005 or so, so this is a massive upgrade. 4K nature documentaries as suggested by a [H] forum member do look fantastic, as does scifi like Blade Runner, Serenity, and The Expanse.
I think I have it detailed somewhere in this thread, search for ASBL. Requires service remote or suitable Android phone and app.
 
I think I have it detailed somewhere in this thread, search for ASBL. Requires service remote or suitable Android phone and app.
If it's 'under the hood' non-authorized tweaking I'll probably leave it as is. It's a very minor annoyance.
 
It’s a major annoyance for trying to calibrate this thing. For some unknown reason they left ASBL on even for the internal pattern generator, making the autocal routine very tricky to complete. The Calman software has a pattern insertion feature that tries to trick it but it doesn’t really work well. I gave up on it for now, service remote coming tomorrow. I might turn it back on but likely not, I’m careful enough with it as it is and that feature really has no place in a PC monitor — reduced service life or not.
 
FINALLY scored an RTX 3090! Time to unleash the full potential of my CX after 6 months of 120Hz 4:2:0

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