I would try a different cable first, see how that goes if you haven't already.

引用自 wing0zero：

I would try a different cable first, see how that goes if you haven't already.

Already did.

The current cables I have are from a German electronics company, they're both an Ultra-High-Speed HDMI 2.1 cable.

Both are connected to my 4090.

ddu your display drivers and install them fresh this most definitely can be a nvidia driver as more people are unlucky with dealing with those bugs

if the gaming drivers does not fix it try the studio drivers you can still game on those drivers just that they usually are more stability releases and fall a bit behind of the game ready drivers

引用自 Midnight Aurais：

ddu your display drivers and install them fresh this most definitely can be a nvidia driver as more people are unlucky with dealing with those bugs

if the gaming drivers does not fix it try the studio drivers you can still game on those drivers just that they usually are more stability releases and fall a bit behind of the game ready drivers

Already did that too, it was one of the first things ChatGPT told me to do.

Why aren't you using DP when using Monirors???

引用自 Bad 💀 Motha：

Why aren't you using DP when using Monirors???

Because I have two 4K144hz monitors... and I read that HDMI 2.1 is better suited for such high resolutions.

- then your stuck with checking the event log during one of those disconnects
- it can be a damaged port on either the videocard or monitor
- it can be a leaking capacitor in the monitor usually a indication of that would be for the display to take more time starting up

but it can also just be like i said driver related and if you ddu'd and it did not fix it then you are just stuck with it till nvidia fixes the issue

what you could try is swap the ports in the videocard of your monitors to rule out the port of the videocard causing it which again if not damaged can still be driver related XD

if it still is the same monitor then wel run it for a while only using that monitor disconnecting the other if it then still does it there may be a problem with the monitor

nvidia has currently more issues with dual setups then amd but should be resolved if you only use one display hench why if the problem is still there it likely comes down to the monitor
- bad cable you already replaced
- bad port on the monitor side
- firmware crash causing the display to reset check if the display has a update on the manufacturer's site
- leaking capacitor
- heck it can even be a faulty timer in the display but that usually ends up causing flickering lines and black bars

Are both screens 4K?

I see few potential problems.

- monitor/tv problem
- drivers problem
- GPU limitation and not enough bandwidth from the GPU side to max out 2x HDMI 2.1 at the same time. Only Asus does 2x HDMI port.

It can be tested by lowering the bandwidth requirements = lower resolution, lower refresh rate or changing to 4:2:0 chroma subsampling on both screens.

But it can be a cable issue as well. Samsung for example is very picky and anything longer than 1m can cause signal loss when the same cable can do 4K144Hz on another screen without issues.

引用自 PaulKrawitz：

引用自 Bad 💀 Motha：

Why aren't you using DP when using Monirors???

Because I have two 4K144hz monitors... and I read that HDMI 2.1 is better suited for such high resolutions.

ah yeah i do not know the model of your 4090 but it checks out highest hdmi version is 2.1 and highest displayport is 1.4 meaning hdmi 2.1 has higher bandwidth

引用自 Midnight Aurais：

- then your stuck with checking the event log during one of those disconnects
- it can be a damaged port on either the videocard or monitor
- it can be a leaking capacitor in the monitor usually a indication of that would be for the display to take more time starting up

but it can also just be like i said driver related and if you ddu'd and it did not fix it then you are just stuck with it till nvidia fixes the issue

what you could try is swap the ports in the videocard of your monitors to rule out the port of the videocard causing it which again if not damaged can still be driver related XD

if it still is the same monitor then wel run it for a while only using that monitor disconnecting the other if it then still does it there may be a problem with the monitor

nvidia has currently more issues with dual setups then amd but should be resolved if you only use one display hench why if the problem is still there it likely comes down to the monitor
- bad cable you already replaced
- bad port on the monitor side
- firmware crash causing the display to reset check if the display has a update on the manufacturer's site
- leaking capacitor
- heck it can even be a faulty timer in the display but that usually ends up causing flickering lines and black bars

Should all not be a problem as the entire setup, including all peripherals, are only 10 months old.

I switched from laptop to desktop 10 months ago.

As for the event log, it's not showing anything regarding these monitor "blackouts".

引用自 C1REX：

Are both screens 4K?

I see few potential problems.

- monitor/tv problem
- drivers problem
- GPU limitation and not enough bandwidth from the GPU side to max out 2x HDMI 2.1 at the same time. Only Asus does 2x HDMI port.

It can be tested by lowering the bandwidth requirements = lower resolution, lower refresh rate or changing to 4:2:0 chroma subsampling on both screens.

But it can be a cable issue as well. Samsung for example is very picky and anything longer than 1m can cause signal loss when the same cable can do 4K144Hz on another screen without issues.

I have the Asus Strix 4090 OC... I believe the 4090 should be able to handle one 4K monitor running the Steam client and the other 4K monitor running the game.

引用自 Midnight Aurais：

引用自 PaulKrawitz：

Because I have two 4K144hz monitors... and I read that HDMI 2.1 is better suited for such high resolutions.

ah yeah i do not know the model of your 4090 but it checks out highest hdmi version is 2.1 and highest displayport is 1.4 meaning hdmi 2.1 has higher bandwidth

My specifications, including my GPU, are available for viewing within the Canva link on my profile.

you are aware products can have defects right and 10 months is plenty for say a aoc monitor to start having a failing timer heck mine started failing in 4 months

so rule it out don't shove it away its the same with purchasing ram it can either fail in a week or it works for years

otherwise if you don't want to figure out the cause then you just have to accept its the driver problem and maybe nvidia fixes it over time or your monitor just craps out one day

nobody can help you if you aren't willing to diagnose then you really just have to go to a repair store which likely will either tell you the same or do the same steps in the diagnosing of the issue

引用自 PaulKrawitz：

引用自 Bad 💀 Motha：

Why aren't you using DP when using Monirors???

Because I have two 4K144hz monitors... and I read that HDMI 2.1 is better suited for such high resolutions.

dp is always better than hdmi
if you have the choice use dp

引用自 _I_：

dp is always better than hdmi
if you have the choice use dp

Make sure to get one that's built to last like UGREEN. Amazon basic ones I had have a tendency to brake easily when bent through gaps in my desk.