Windows on LG CX - signal dropping

[OverC1ockeD]

This has been driving me bonkers for the longest time. I'm in Windows with HDR turned on. RTX 3080. It keeps popping "HDR - instant game response" over and over and over and over again and won't stop and it'll do it quite randomly. How do I get this to quit?

Yes it's in PC mode, yes I'm using an hdmi 2.1, yes everything is configured correctly in nvidia control panel for gsync on pc resolution & gsync enabled - any ideas or thoughts would be greatly appreciated, thank you! To note it does this in the OS as well as when gaming./watching movies, anything and anytime just hits randomly and drops the signal then immediately reconnects the display. I don't get it.

[BetteBalterZen]

Assuming your TV has firmware updates available, and you're using latest GPU drivers, I suspect the HDMI 2.1 cable may be defect somehow or too long. I also own a LG CX and mines works fine, and I'm running latest Windows 11 updates, Nvidia drivers and TV firmware, and are using a 3 meter long HDMI 2.1 cables.

[porina]

Cable is my first thought too. I have the older B9 and had problems until I got new cables with a higher certification. I forget what the marketing name for it is now.

[Alex Atkin UK]

40 minutes ago, porina said:

Cable is my first thought too. I have the older B9 and had problems until I got new cables with a higher certification. I forget what the marketing name for it is now.

I eliminated all problems by moving to optical cables, even for short runs.

[porina]

49 minutes ago, Alex Atkin UK said:

I eliminated all problems by moving to optical cables, even for short runs.

Can't say I ever looked at optical. My old HDMI cables were only rated for whatever standard supported 4k60. Replaced them with ones rated for 4k120 and it was fine.

[OverC1ockeD]

10 hours ago, porina said:

Cable is my first thought too. I have the older B9 and had problems until I got new cables with a higher certification. I forget what the marketing name for it is now.

It's the certifiation by HDMI, and yeah I'm using monoprice hdmi certified cables, ultra certified. I've tried changing cables...but I'm at my wits' end. Seriously. Okay, I am going to change the cables one more time out of the chance that I ended up with a bad cable twice. I guess ya never know. It's definitely a failing signal, I narrowed it down to that by testing use with instant game response turned off. So, that is the only thing that makes sense is a failing signal/bad cable.

[OverC1ockeD]

12 hours ago, BetteBalterZen said:

Assuming your TV has firmware updates available, and you're using latest GPU drivers, I suspect the HDMI 2.1 cable may be defect somehow or too long. I also own a LG CX and mines works fine, and I'm running latest Windows 11 updates, Nvidia drivers and TV firmware, and are using a 3 meter long HDMI 2.1 cables.

Tried different cable and didn't work, same thing, so updating tv firmware. I skipped the last a bit ago due to issues they had with it. We'll see if this works.

[OverC1ockeD]

On 11/9/2023 at 8:19 AM, Alex Atkin UK said:

I eliminated all problems by moving to optical cables, even for short runs.

Okay so I tried two different cables. Monoprice HDMI certified and Monster blue, both rated the same. Same results. At this point what cable will do rgb 4:4:4 at 4K@120hz? I turned off instant game response entirely and problem persists. I’m assuming cable, but I also toned it down to 1440p same result (but went from around 50-90fps in the game I’m playing currently).

[seanondemand]

from rtings' review of the LG CX https://www.rtings.com/tv/reviews/lg/cx-oled#test_206

[OverC1ockeD]

3 hours ago, seanondemand said:

from rtings' review of the LG CX https://www.rtings.com/tv/reviews/lg/cx-oled#test_206

Well this is interesting. Mine display it but drops signal. So like…idk what to think it’s going on 4am for me lol but I’ve beaten my head against on a wall on this one. Glad I’m not the only one I guess. 

[OverC1ockeD]

On 11/9/2023 at 6:20 AM, BetteBalterZen said:

Assuming your TV has firmware updates available, and you're using latest GPU drivers, I suspect the HDMI 2.1 cable may be defect somehow or too long. I also own a LG CX and mines works fine, and I'm running latest Windows 11 updates, Nvidia drivers and TV firmware, and are using a 3 meter long HDMI 2.1 cables.

Yeah that's what I've tested it and came to the conclusion of. Problem is I need ten feet. Looks like LTT did hdmi cable tests and at ten feet that's where there are issues. Any you could recommend? Thanks!

[BetteBalterZen]

13 hours ago, OverC1ockeD said:

Yeah that's what I've tested it and came to the conclusion of. Problem is I need ten feet. Looks like LTT did hdmi cable tests and at ten feet that's where there are issues. Any you could recommend? Thanks!

No sorry, don't know any specific good cables manufacturers. 

[OverC1ockeD]

On 11/9/2023 at 6:20 AM, BetteBalterZen said:

Assuming your TV has firmware updates available, and you're using latest GPU drivers, I suspect the HDMI 2.1 cable may be defect somehow or too long. I also own a LG CX and mines works fine, and I'm running latest Windows 11 updates, Nvidia drivers and TV firmware, and are using a 3 meter long HDMI 2.1 cables.

Ordered several cables. Highwings is working so far. The fails were monoprice braided and certified and monster blue cobalt braided not certified. All 10ft/hdmi 2.1/48gbps, etc. No drops on the highwings, quality of all seems about the same but I like how they indicate the end of the cable with a simple stamp of 8K on it. Packaging is about as basic as it gets.

[OverC1ockeD]

On 11/19/2023 at 7:35 AM, BetteBalterZen said:

No sorry, don't know any specific good cables manufacturers. 

Tried three different high quality  hdmi cables. No luck. I have come across this error here and matched it in event viewer to the time the displays kicks off and back on:

 

https://learn.microsoft.com/en-us/answers/questions/439273/error-event-id-10016-distributedcom

 

Founda guide online and followed it to the letter to no avail. Error persists.

[OverC1ockeD]

Update. Issue persists. Not the cable I don’t think. 

[OverC1ockeD]

On 11/9/2023 at 6:20 AM, BetteBalterZen said:

Assuming your TV has firmware updates available, and you're using latest GPU drivers, I suspect the HDMI 2.1 cable may be defect somehow or too long. I also own a LG CX and mines works fine, and I'm running latest Windows 11 updates, Nvidia drivers and TV firmware, and are using a 3 meter long HDMI 2.1 cables.

Update. Three different cables later and it’s still having the same issue. Unsure of what to do at this point. I did notice when it does happen there is an error report in event viewer. I’ll have to find it to post to see if it makes sense to anyone. Could be the underlying cause.