Samsung Neo G9 screen goes black and turns back on (Windows 11 RTX 2070 super)

[Spaceway]

Hi,

I own the neo G9 (LS49AG950NUXEN) and have a few issues.

I recently saw a post named "Samsung G9 Neo - Windows 11 HDR flickers off and on every few hours" but the thread was stated as solved, so I am creating a new one. I have a similar issue.

After upgrading to windows 11 my monitor keeps going black, like it's changing source, while entering different apps (games, edge, visual studio, whatever) and then it switches back on after a few seconds. When it happens, the OSD displays the current source like it is switching source.

At first I thought it was related to HDR, but it also happens without HDR enabled in windows.

I have updated to the most recent firmware using USB, but the file is from march 2022.

I don't know if it's related, but sometimes I cant wake the monitor from sleep using just mouse/keyboard. I have to press the on/off button on the monitor to wake it up. 

I also get pretty nasty scanlines, but I guess that is unrelated and I have sorta learned to live with that.

Hope you can help fix the source/blackout issue as it's pretty annoying.

Thank you!

[Spaceway]

I should add what I've tried to resolve the issue.

Update nvidia drives.

Changing cable (using the one that came with the monitor) but tried another DP cable with same issue.

Changing cable port on gpu.

Windows update.

[Spaceway]

Any chance of a reply :)?

[TheSandman_]

I just purchased a Neo G8 a few days ago mysellf, I am having the same issues as well, I see it more during gaming..

[TheSandman_]

I purchased a USB-C to Displayport cable, it seems to have fixed the issue with the black screen flickering, I'm able to run HDR with no problems now.

[Dukis]

I am having the same issue. I was hoping somone would have replied to this with a solution

[orbitpro]

I just got the flagship Samsung S95C and I have this exact issue on my PC. It's mad I've read people getting this issue as far back as 2019 on different TV models. @Communityuser3049203 any ideas on how to fix this? PC (Windows 11) is all up to date and so is the TV. I never had this issue with the LG C1

[bitpusher1010]

>>I don't know if it's related, but sometimes I cant wake the monitor from sleep using just mouse/keyboard. I have to press the on/off button on the monitor to wake it up. 

I'm having this issue also. Would like an explanation. Why have to cold boot the monitor to get it back on-line?

[Cask-]

Same issue here - G9 OLED.

It's a very strange problem in may case. The only time I get black screens (so far) is when using WhatsApp for Desktop, Microsoft Paint, Photoshop, Sekiro FPS Unlocker and ReShade. The only program that consistently causes black screen to happen without even moving my mouse or performing certain actions is WhatsApp for desktop. All the other programs require certain mouse movements or actions to trigger the black screen. It's worth noting that the monitor I had before the G9 OLED was Dell's Alienware AW3423DW,. This panel is provided by Samsung. I never had any of these problems with that monitor. This leads me to believe that the problem has something to do with Samsung's panel software. 

For reference I am running Windows 11 with an Nvidia card and an AMD Processor. I am on the latest drivers for both and I have tried using HDMI 2.1 and DP 2.0 and the problem persists (with HDR on and off). I thought it might be Tizen OS (the G9 operating system) but clearly it isn't judjing by the information reported in this thread from other Samsung Monitors of a different ilk. 

[ermish]

+1 to this. Same hardware and windows 11.

Bought brand new HDMI 2.1 and DP2.0 cables as well. 

Also occurs with HDR off. Going to try turning off Variable Refresh Rate and see if that works. 

So far it seems like a firmware update is needed.