Problems with the four-monitor configuration
Problems with the four-monitor configuration
Hi everyone, I'm facing some problems with my four-monitor configuration after swapping one unit. I searched online and asked on Reddit, but haven't received any assistance yet. My current arrangement includes three 3GB 1440p 144Hz monitors and one Samsung G9 1440p 240Hz display. I replaced the older G9 with a new non-smart OLED model from Samsung. Initially, my setup worked fine at full resolution, but after installing the new screen, one monitor stopped showing anything. I adjusted the settings to match the original configuration—60Hz for the three monitors and 120Hz for the new one—but it still didn't display properly. I've tried resetting everything, reinstalling drivers, changing cables on the non-functional monitor, and even using different ports, but nothing seems to resolve the issue. When I connected the new OLED and turned off my PC, everything worked again. It appears the problem is only with the new monitor. Could it be that the OLED type itself is causing the issue? I know the 3080 can handle four monitors, and the faulty one is the only HDMI port, while the others use DisplayPort. The fourth monitor appears to show correctly in Windows and NVIDIA settings, but when trying to adjust in Windows Settings it says it can't be saved, and in the Control Panel it gets unchecked. I'm hoping someone can help me troubleshoot this.
It could indicate your graphics card is beginning to malfunction.
You're working with large numbers—like 3 times 2560 by 1440 equals about 11 million pixels, and 2 times 7,680 by 2,160 equals roughly 33 million pixels. It sounds like you're hitting the maximum capacity of that card. The good news is, even with just one monitor, it's still a tight situation.
I see you've grasped the calculations correctly. I'm updating the setup by swapping the G9 for the OLED G9, both supporting 1440p (5120x1440). This means three monitors at 60Hz and one at 120Hz all function smoothly together.
I assumed you were talking about Neo and somehow mistook it for something else. The specs I mentioned relate to a 1440p display with specific monitor connections. G9 OLED uses DP, and two of the monitors are also DP while one connects via HDMI.
Main concern is that there were no issues once I adjusted the monitor refresh rate on my old G9. I faced the same problem with three 27-inch monitors, but discovered that the GPU has a limit on refresh rates and I had to lower them to 60Hz before the fourth monitor functioned. This same problem persists, though the solution no longer applies; perhaps the difference lies in whether the G9 is standard or OLED. Besides being OLED, it doesn’t appear there are other factors at play. Yes, OLED and 2 GB are connected via DP, while HDMI was used previously without issues. All cables remained unchanged except during testing after the problem started.
You might want to rearrange the cables so monitors connect to different ports. This helps identify if a specific port or monitor is causing issues. Installing a brand new Windows version could help too—Windows sometimes gets confused with monitor IDs and keeps trying to send images to unplugged devices. Also, your system details (besides GPU) weren’t listed. If your CPU has built-in graphics, try using one monitor as the iGPU. You could also add a second, less powerful GPU and connect a monitor to it. Just my thoughts.
I still value your feedback. I experimented with swapping them, but it seems none are affected specifically. Once I disconnected some, the fourth one worked well. It’s an R9 3900x, so no GPU card was damaged. I have another GPU, a 1030, which I can connect but it’s on a different machine used for 3D printing. I’d prefer not to use it if possible. Honestly, I was hoping to resolve this since it functioned before. With everything else failing, I suspect the new OLED monitor might be the problem. That’s the only change from my old setup that worked. EDIT: It appears the HDMI-connected monitor is likely the issue—plugging in other devices makes it turn on, but the HDMI one shuts off, and the new one takes over. It seems the HDMI display has lower priority.
It seems the situation isn’t something you can control, but if your setup isn’t focused on gaming across all devices, you might save money by purchasing an older GPU—like an ATI HD5450. You can usually find them for under $5 at places like Good Will stores or recycling centers. These units work fine with monitors as long as you don’t plan heavy 3D rendering. Good luck!