The question of a limited connection might be restricted to Windows 11 Pro users.
The question of a limited connection might be restricted to Windows 11 Pro users.
I built this computer using an ASUS Z790 chipset, 64 GB of RAM, a 12GB MSI Gaming Trio card for gaming, and an ASUS 4K monitor connected via a cable. Every day or so, Windows 11 Pro keeps showing me a message saying that the video connection might be limited. The link I found is just general help with things like restarting power or checking settings. So I called up MSI and was told to send the card back for a refund. After getting my money back, I bought another graphics card named Zotac Gaming 4070 and used an HDMI cable that locks in place on both ends. Guess what? The notifications are still happening. I've been talking with ASUS about this being a problem with the monitor instead of me or the computer. So I tried to make the monitor go faster, specifically to the 160Hz rapid refresh rate, and that seems to have stopped the notifications from coming as often, but they are still there. Does anyone know why I keep getting these Windows messages? On top of that, my diagnostics don't show any video problems or glitches; the screen looks perfect all the time. I'm also wondering if this has anything to do with NVIDIA Control Panel settings. One option is Enable G-SYNC with 2 choices: either it works for full screen mode or it works for windowed and full screen modes. So I'm wondering if changing the setting between full screen and windowed mode might be causing the notification that says the DP connection is limited?
Do you use a 4k screen with a DisplayPort connection? If you're on DP 1.4, it supports up to 4K and 120Hz only if the monitor uses DSC (Dynamic Scaling). That means any extra power or settings are wasted. Maybe your monitor is doing something weird with DSC, especially since you're pushing the refresh rate to 160hz. This keeps the screen on way too often. Are you using HDR? It could change things too. Basically, for this video card and monitor combo, I should be using HDMI instead of DisplayPort.
I'll be straight up: your idea works much better than anything ASUS has given me before. They act like I'm a fly. I keep sending suggestions and they just say "keep it coming" or want me to take a screenshot of the screen notifications. ASUS told me to turn my monitor into 160hz overclocked mode. When it came out, the display ran at 143hz (which is normal for you). The Windows notifications showed up while I was set to that lower rate. HDMI actually runs at 144hz, which matches what the screen's native resolution should be. But the DP port can also do 144hz. So maybe I should just try a different HDMI cable? That won't tell me why this is happening. I've tried turning HDR off and on with no change.
If you want to hook that thing up with DP, I'd suggest testing it on 4K/120hz just to see if anything changes (it doesn't even need DSC for this and definitely no HDR on). HDMI 2.1 (that fancy stuff they call real HDMI 2.1) is going to let you run it natively without any compression at any refresh rate it can handle when using 4K resolution.