Samsung Odyssey G9 OLED - black screens, connection losses, and more

[ElfVierzehn]

Hello,

I have the G9 OLED for two days and have really lousy problems:

- when I start a game in fullscreen mode with the native resolution of 5120x1440, the monitor sometimes shuts down. There's no way to restore the image until I'm somehow able to either blindly quit the game or restart the PC - sometimes only the reset button helps.

- When starting certain apps or fullscreen applications, I hear a sound like a device is connecting and disconnecting. I also hear this randomly - it stopped, when I disconnected the USB cable from the monitor and ramains happening when I start full screen applications and exit them.

- I randomly have black screens every now and then without doing anything specific. And quite extreme: If I watch a video via any media player, enter fullscreen and move the mouse, the screen goes black for 3 seconds and then returns. If I move the mouse again, the screen goes black again. This goes on and on.

- I am using an RTX 4090 with this monitor. When I set it to 240 Hz, the GPU memory clock rate is not downclocked when the PC is idle. That means the GPU memory clock (not GPU clock) is always running at max clock, which is not ideal for power consumption and temperatures.

I use a Display Port 1.4 cable with 32.4 Gbit/s, but also have an HDMI 2.1 cable with 48 gbit/s. This happens with both cables. As soon as I lower the monitor Hz to 120, the memory MHz goes back to the correct idle value, as it should. Is this a normal behavior?

- when I turn off VRR on the monitor, it is no longer possible to set the native resolution.

The monitor is running on the latest firmware version 1023.

These are honestly such massive problems that I am almost determined to return this monitor to Samsung as soon as possible.

Any input from more experienced Samsung users who have been able to remedy these issues?

Thanks so much!

[Tallarn]

Thanks for posting this! Hopefully all goes well on monday and, as you say, it's not a piece of hardware that needs replacing. Looking forward to being updated

[Badgerslayer7]

So you have an upgraded firmware. How come you couldn't just install it yourself? Does it have a version number on it. I have had just one black screen in a month since turning off gsync. Is everyone using hdmi? Or DP? I'm plugged into hdmi .

[Tallarn]

 I'm using DP. it's not practical for me to use HDMI because i use too many screens for the bandwidth on a 3090 card and it just keeps disconnecting

I'd try it if i knew that it black screen every day. but it doesn't. However even with G-sync off it has done it multiple times within the space of a week or so.

[Badgerslayer7]

Oh no that's rubbish. This black screen issue gas caused me so many head aches. After trying 3 different cables I thought I had an issue with my gpu. I have a 3090 like yourself. I'm still not certain this is a firmware issue or whether my monitor is just faulty. The fact that samsung has not officially acknowledged the problem makes it even worse.

[Tallarn]

well i tend to look at it this way. it wasn't doing this before i updated the firmware and so far it only seems to do it once per day..on a day it does it. if it was happening multiple times a day consistently i would have sent it back. the really annoying thing is that I had a G9 Neo before that eneded up with a dead pixel so i sent that back...got a G9 oled...screen optimisation kept  popping up so i sent that back as well. I've had nothing but issues with this current crop of samsung monitor tech.

it's a real shame because i've got a 32" 4k samsung monitor above it which i've had for years now and works perfectly *touch wood* samsung LED tv's which were and still are great and also NVME drives which were...great heck I switched to a different company's drives for PCIE 4.0 because at the time they were the fastest and I *won't* be looking to buy them again..I'm hoping to replace them with Samsung's 990 pro's and if the price shifts down a bit (yes i know they have a cashback offer on) I'll be getting them!

So you can tell I'm generally really happy with Samsung's products. I don't want to purchase something by another company because spec wise they aren't good.

I'm trusting that they'll get it fixed.

Hopefully it will be answered sometime soon after the tech has a look at Kriminal's screen

[JurgenDM82]

Some follow-up.

I've managed to downgrade the firmware of my monitor to the old version 1002.2 and I wanted to share with you how to do this :

1. Download the old firmware that worked flawless for you, in my case it was version 1002.2.

2. Format an usb stick to FAT32 (the stick must be empty).

3. Extract the file (example : M-C9349GGAA-1002.2[8CAE].img) and place it in the root of the usb stick

4. Rename the file by changing the version number to 0000.0 (DON'T touch the other parts) => example M-C9349GGAA-1002.2[8CAE].img becomes M-C9349GGAA-0000.0[8CAE].img

5. Connect the freshly created stick to your monitor and go into the OSD > Support > Software Update.

6. The monitor should now find the old firmware and you just have to confirm the upgrade (or downgrade in this case).

7. Monitor will load the older firmware and will reboot. You now have the older firmware back.

Good luck 🙂

[Kriminal]

I purchased the monitor in January and my monitor has always had the 1310 firmware, updated on first day.
The problem occurs if I use it at 240Hz while everything works correctly if I put it at 120Hz (HDMI and Gsync on).

The Samsung technician sent me a firmware and asked me to wait for him to install it remotely.

I don't know the firmware version because he couldn't install it, he tried via a service options panel that I had never seen.
Since it didn't work, I didn't try to install it myself using the standard procedure.

If you want to try 

*link removed due to concerns over contents*

[Badgerslayer7]

Them files are not big enough to be firmware. I think the last one was about 1GB

[Badgerslayer7]

Does it give you the option to upgrade to the new version after going back. Worried if I did it and a new version came out I wouldn't be able to upgrade.

[Tallarn]

Haven't checked those files myself yet(I'll await an official upload to the samsung website) but i'm not sure you can easily dismiss on the basis that they aren't over 1GB as the current firmware upddate for the G93SC is only 3.6 MB zipped and the image file is only 2.2 MB