Laptop - 6 monitor set up, cant get 60hz to keep

[jiab]

Hello, strange issue, would love some advice.

I have 6 monitors, 5 are attached to a Display Link usb hub using the 4k hdmi adapters. The main monitor is connected via hdmi to the laptop.

I have 3 on top, 3 below

The 3 on top are:
Left(1920x108060hz), Middle(2560x144060hz), Right(1920x108060hz)

The 3 below were:
Left(1920x108060hz), Middle(2560x144060hz), Right(1920x108060hz)

It is the left bottom that I replaced with a 4k monitor that I am trying to run in 2560x144060hz. It comes up in 30hz, but when I change it to 60hz, it immediately becomes in display properties monitor management the right most monitor. At this point it is in 60hz and everything works fine, but the moment I move it back to its correct position in the interface and hit apply, it reverts to 30hz. I change it to 60hz and it then is moved to the right bottom in the interface. If I change it to 1920x108060hz, it stays in the bottom left and has no issues.

Any idea what is going on here? It makes no sense to me that simply putting this in a higher resolution forces it to be my right most monitor in the interface. I have tried a different adapter and a different 4k monitor in 2560x144060hz, same issue.

Thanks for any assistance.

jiab

PS Is there a fix yet for nVidia control panel not working correctly when displaylink adapters are running? I was going to try to use their multi monitor controls but it doesnt exist unless I unplug all displaylink monitors from the computer.

[AlbanRampon]

Hello,

Thank you for describing your issue. This is helpful but unfortunately not enough for me to give you a definitive answer.

Would you please be able to tell us what is connected to what (brand and model) and how (adapter used if any)?
I believe this is higher than the maximum pixel rate possible by the product but I like to be sure before I write something...

Kind regards,
Alban

[jiab]

Thanks so much for the reply and assistance.

I have this hub - Plugable 7-Port USB 3.0 SuperSpeed Hub
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

I have 5 of these adapters - Plugable USB 3.0 to HDMI 4K UHD
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

All 5 adapters are connected to the hub. All other monitors working fine at 60hz and maintain position in windows 10 display properties when manipulated.

Thank you!

[AlbanRampon]

Hello,

I see 6 monitors, 5 adapters and 1 graphics card.
Are you driving the other 2.5Kp60 directly from the graphics card?

Would you please be able to supply the machine logs as described in the last link in my forum signature? I don't see how that adapter is made to support 2.5Kp60 over HDMI.
The logs will also give me a list of modes supported by the monitor along with which timing is sent.

Kind regards,
Alban

[jiab]

Center monitor is HDMI directly to the laptop.

The other 5 monitors are all going through the 4k HDMI plugable adapter, to the usb hub, which is connected to my usb 3.0 port on laptop.

All monitors are working in 2560x1440p resolution at the moment at 60hz, accept for the lower left monitor in question, which will work at 2560x1440 at 60hz as well, but only if I keep it as my right most lower monitor in the display settings graphical interface.

I can also run all of these monitors in full 4k resolution at 30hz, so the adapters and the laptop are definitely capable of supporting 1440p resolutions across the board.

HDMI 2.0 cables support 4k at 60hz, whether the 4k plugable adapters support that I do not know, but they definitely support 4k@30hz and 1440p at 60hz as all my other monitors using the same adapters run fine.

I am on phone right now, but when I get back I will submit the logs if you still need them after reading the above.

thank you!

[AlbanRampon]

Thank you. I see where I went wrong!
Your displays are not connected to our chip directly, but through a converter so the 2.5Kp60 limit doesn't apply as this is DisplayPort not HDMI.
I'll call the monitor you're trying to set at 2.5Kp60 as the "jumping monitor". WDP is the Windows Display Panel, where the settings and layout is changed.

For the logs, could you please capture the following:
- Run the customer support tool and enable advanced logging
- Setup the layout with the jumping monitor at 2.5Kp30.
- Save the correct layout by applying the settings.
- Now change the jumping monitor at 2.5Kp60. If I understood correctly, the monitor will move, but that's fine: I want to see the new layout committed.
- Save the correct layout by applying the settings.
- Reopen the WDP and don't change any resolution but move the monitor to where you want it.
- Save the correct layout by applying the settings. At this point, it should have moved changed to 2.5Kp30.
- Run the customer support tool again and disable advanced logging.
- Gather logs and attach to your reply.

The logs will tell me at each step what the computer is supposed to do.

Many thanks...
Alban

[jiab]

I believe I am connected directly. I am not using display port at all, my laptop does not have a display port. All 6 monitors are using HDMI 2.0 cables connected directly to the plugable 4k adapters, which are connected to the plugable usb hub, which is connected to my laptop.

Thanks again, will get those logs to you when I get home.

[AlbanRampon]

Originally Posted by jiab

I believe I am connected directly. I am not using display port at all, my laptop does not have a display port. All 6 monitors are using HDMI 2.0 cables connected directly to the plugable 4k adapters, which are connected to the plugable usb hub, which is connected to my laptop.

Thanks again, will get those logs to you when I get home.

No, I get that... But DisplayLink does not make any end product, we make chips.
Then from these chips people build whichever system they wish with them.
I read "HDMI" and "2.5Kp60" and I immediately thought: this chip doesn't do that. The adapter does do that, because the adapter is more than our chip, that's where I went too quick.

[jiab]

log file has been emailed

[jiab]

Good morning, were those log files I sent over to you complete? If not I can run them again,