Neo G8 4K 240Hz losing connection randomly for 1-2 sec

[Byogore]

Have a problem that kind of makes no sense to me. I swapped from an RTX 4090 Suprim to 5090 FE and now the monitor randomly turns off for 1-2 sec and recovers. Tried 3 different cables (Silkland DP 2.0 and IVANKY) also the default cable. All of these cables worked fine before. I am using the latest firmware.

The monitor wasn't even used at all after I sold the 4090. I just plugged it in after a month. When using GSYNC, this blackscreen never happens. When you turn off GSYNC (aka adaptive-sync on the monitor's settings), you lose connection to the monitor for 1-2 sec whenever it feels like it. Could be 1 minute, 15 minute or 30 minutes. This happens on desktop and in games. Monitor goes black and in the top left you can see the Display Port icon, as if I manually reconnected. Stock 5090 settings. You don't need to use GSYNC in NVIDIA Panel, you just need to have Adaptive-Sync enabled on the monitor (in case you don't want to use GSYNC but want to fix the issue)

I never had these black issues before with adaptive-sync off. Windows is fresh, DDU drivers multiple times, tried the last 4 drivers and it still happens on 572.83. I also tried the 1080p 240Hz BENQ that I have here and it didn't cause any blackscreens (didn't test it much tho) but I am guessing this is a driver issue with DSC and for some reason "Adative-Sync" set to enabled on the monitor the issue go away.

So what do I do now? RMA the monitor or is the GPU broken? It's hard to tell what's happening here. The GPU works fine under any stability test (3DMark etc) with max OC, heavy undervolt and also stock. Tried all ports (except HDMI since I don't have an HDMI cable atm but will soon)

Waiting on a SILKLAND 2.1 DP cable to try that. Edit: didn't do anything (not that I was expecting it to, wanted the cable anyway)

What a frustrating issue. Specs below

CPU: 9800X3D

GPU: RTX 5090 Founders Edition

Motherboard: X870E Nova (3.15 BIOS) and using PCIe x16 5.0 (tried 4.0, still the same thing)

PSU: NZXT C 1500W

Windows 11 latest build.

Edit:

576.02 - no fix.

576.26 Hotfix Driver - no fix.

[scboss]

Any updates? Having same issue with a 5080 FE and this monitor. Never had any issues with 3080

[Byogore]

Nothing yet. Waiting for new drivers. Tried HDMI but it doesn't run 240Hz, so the test would be useless at 120Hz. Does your issue also disappear like mine when enabling GSYNC (even if you don't use it within Windows) - just need to turn on Adaptive Sync on the monitor. You can disable GSYNC in NVCP.

[scboss]

I may have found a solution. Ive been playing 1 hr without it happening. Go into nividia control/manage 3d settings and turn power management mode to prefer max performance. Ill keep you posted if it comes back.

Only way it was staying stable for me before was 120hz

[Byogore]

Thanks for posting that. Unfortunately, I already had that option enabled globally. I've tried with default and also with max performance.

[scboss]

Happened after about three hrs of gaming still not the answer. Looks like drivers are the cause! Any updates please post!

[Aekapop]

I have the exact same problem after i change to 5070ti. waiting for solution

[Members_HrWyKyj]

Any luck with the silkland 2.1? I just ordered one too. 

[Members_HrWyKyj]

Any luck?

[Byogore]

No change with Silkland 2.1. Wasn't expecting it to do anything anyway, but bought it to give it a try just in case. Could use the cable for a future DP 2.1 monitor. So far I have not found a way to fix this bug. Only enabling GSYNC removes the bug.

[Eid-85]

I have RTX4070 connected to this monitor I'm facing same issue like what you have and also I have other monitor 1440P and 4k TV connected to my pc and this monitor causing my pc to freeze and is making my windows freezes for 1 or 2 sec when open display sitting. I'm sure your pc is fine; this is the first time I see that a monitor causing a lot of trouble like this one. what a waste of money.