Shaking cursor with EnableGammaRamp = true

smmalis37 · 01-24-2022, 11:39 PM

I am running Windows 11 version 21H2 (build 22000.438) with DisplayLink version 10.1.2875.0. I have manually gone into my registry and set HKLM\SOFTWARE\DisplayLink\Core\EnableGammaRamp to "true" so that I can have Windows Night Light function correctly. While this does work, it comes with the side effect of my mouse cursor looking absolutely bizarre when it's on a display connected to the DisplayLink adapter. The mouse cursor looks perfectly normal on displays connected to my GPU. Here is a video of the issue I took with my phone: https://www.youtube.com/watch?v=wqItUXxwAMA. Note that my hand is completely off the mouse during that recording. Disabling the registry key fixes this issue, but then I can't use Night Light. Any suggestions?

AlbanRampon · 02-01-2022, 06:04 PM

Hello,

I'm afraid that is the reason why the feature is in beta rather than enabled by default.

Can you please share your monitor make and model?
We are revisiting the feature to see if we can address that issue, but I don't have feasibility yet.

Regards,
Alban

smmalis37 · 02-01-2022, 08:25 PM

The monitor connected to the displaylink adapter is a LG 27QN880-B.

AlbanRampon · 02-01-2022, 08:30 PM

Thanks.
Would you mind trying at 60Hz? It's selectable in advanced monitor settings. I can explain if you don't know where to find that.

smmalis37 · 02-01-2022, 09:17 PM

When connected to the DisplayLink adapter Windows does not give me the option for 75hz, only 60. So I have already tried that.

AlbanRampon · 02-01-2022, 09:49 PM

Would you please be able to upload logs? The third link in my forum signature shows the tool and steps. Only support personnel will be able to access the attachment.
I'd like to see monitor details (timings), and available modes. I found tests we made a couple of years ago and now understand why 60 Hz has the trembling mouse cursor.

01-24-2022, 11:39 PM	#1
smmalis37 Junior Member Join Date: Jan 2022 Posts: 3	Shaking cursor with EnableGammaRamp = true I am running Windows 11 version 21H2 (build 22000.438) with DisplayLink version 10.1.2875.0. I have manually gone into my registry and set HKLM\SOFTWARE\DisplayLink\Core\EnableGammaRamp to "true" so that I can have Windows Night Light function correctly. While this does work, it comes with the side effect of my mouse cursor looking absolutely bizarre when it's on a display connected to the DisplayLink adapter. The mouse cursor looks perfectly normal on displays connected to my GPU. Here is a video of the issue I took with my phone: https://www.youtube.com/watch?v=wqItUXxwAMA. Note that my hand is completely off the mouse during that recording. Disabling the registry key fixes this issue, but then I can't use Night Light. Any suggestions?

02-01-2022, 06:04 PM	#2
AlbanRampon Senior Member Join Date: Sep 2015 Location: Cambridge, UK Posts: 1,678	Hello, I'm afraid that is the reason why the feature is in beta rather than enabled by default. Can you please share your monitor make and model? We are revisiting the feature to see if we can address that issue, but I don't have feasibility yet. Regards, Alban __________________ Alban Rampon Senior product manager, universal docking stations and accessories "DisplayLink is proud to be a Synaptics brand." Where to download the latest DisplayLink drivers How to clean up a corrupted installation How to report issues to DisplayLink for a speedy resolution

02-01-2022, 08:30 PM	#4
AlbanRampon Senior Member Join Date: Sep 2015 Location: Cambridge, UK Posts: 1,678	Thanks. Would you mind trying at 60Hz? It's selectable in advanced monitor settings. I can explain if you don't know where to find that. __________________ Alban Rampon Senior product manager, universal docking stations and accessories "DisplayLink is proud to be a Synaptics brand." Where to download the latest DisplayLink drivers How to clean up a corrupted installation How to report issues to DisplayLink for a speedy resolution

02-01-2022, 09:49 PM	#6
AlbanRampon Senior Member Join Date: Sep 2015 Location: Cambridge, UK Posts: 1,678	Would you please be able to upload logs? The third link in my forum signature shows the tool and steps. Only support personnel will be able to access the attachment. I'd like to see monitor details (timings), and available modes. I found tests we made a couple of years ago and now understand why 60 Hz has the trembling mouse cursor. __________________ Alban Rampon Senior product manager, universal docking stations and accessories "DisplayLink is proud to be a Synaptics brand." Where to download the latest DisplayLink drivers How to clean up a corrupted installation How to report issues to DisplayLink for a speedy resolution

02-01-2022, 08:25 PM	#3
smmalis37 Junior Member Join Date: Jan 2022 Posts: 3	The monitor connected to the displaylink adapter is a LG 27QN880-B.

02-01-2022, 09:17 PM	#5
smmalis37 Junior Member Join Date: Jan 2022 Posts: 3	When connected to the DisplayLink adapter Windows does not give me the option for 75hz, only 60. So I have already tried that.