Graphics and mouse pointer LAG still unresolved!
 

This subject have been up a number of times in the forum but is still unresolved.

The lenovo usb 3.0 dock hardly worked for me on my brand new lenovo yoga 13 with win 8 and after upgrading to win 8.1 it's even worse. During short times it seems to work but seemingly randomly it starts lagging. Since even the mouse pointer lags, it's actually worse than working through a bad remote desktop connection.

I've patched everything. I've tried lenovo drivers and displaylink drivers. I've updated the intel 4000 graphics. Nothing helps.

After reading through the forum I haven't been able to come to a conclusion but there are a couple of things that needs to be focused on.

1. When ethernet in the dock is used, you get lag. Internet access goes on basically all the time in the background in windows so therefore the random nature of the lagging. When downloading something bigger, everything basically freezes. A number of people have reported this but is hasn't been addressed. This should be a really strong hint about what is going on!

2. The lag totally disappears when using the laptop screen at the same time as the dock (extended desktop) instead of closing the lid and only using the dock connected screen. I don't remember if anyone have noticed this. This should really explain the problem!

3. When some graphics on the screen is changed, for example when a new window is being drawn or elements change in some way, the mouse pointer stutters. It's very common for things to change color with mouseover, for example most buttons in Windows or elements on web pages. But this really only happens over SOME elements. Most elements on web pages experience this problem and especially on web forms, but NOT buttons (html tag <button>). In Windows most elements works fine including the taskbar. This used to be the other way around. This should also really be a hint about what is going on... ESPECIALLY because this problem disappears completely when I open the lid on the laptop. Is some graphics drawn with the GPU and some not? Does it have anything to do with how the graphic buffer is handled by windows? Probably...

I'll be glad to film all this with my cell phone and upload so you can see all these symptoms and more. Though I expect to get paid when things are resolved since I'm clearly doing your job.

That's interesting and shows that something is happening on this platform in replace mode.

Can you post the logs for the system as described here:

http://kb.displaylink.com/269

Also, if you play a video, does the video go jerky at the same time as the mouse pointer, or is it just the mouse pointer that is jerky?

Wim

Where do I post the log file? And I guess you don't need the "display link logging" since no actual error/crash occurs?

Youtube jerks at the exact same time as the mouse pointer does. When something is drawn on the screen (well except for the youtube video itself) the video jerks and the mouse pointer lags. All I'm doing is dragging the mouse pointer back and forth over the toolbar buttons on top of this message box (they turn blue).

Researched some more... if I drag the mouse around where there is nothing changing (nothing under the mouse pointer) the video and the pointer actually also jerks, but less. BUT if I drag the mouse around OUTSIDE the IE/youtube window everything is totally fine. It has to have something to do with how windows draws different elements, windows, animations with GPU/3D-planes...? Aero is enabled but windows aren't transparent since it's win 8 but I guess it's still drawing windows as "textures"? (Not my expertise this)

You can post the log file here or PM it to me. I'm interested in the machine details and the resolutions and desktop layout of your displays.

Wim

I sent it to you yesterday in PM. Any news?

Any news?

The behaviour is totally different if using extended screen och only laptop screen or only secondary screen. And actually different when only one screen is being used but laptop lid open och closed. Just look into it.

I've had a look at the logs and don't see any obvious problem. Are you saying this only happens on mirror mode and usually happens when you move over links on a web page?

I assume if it is happening in mirror mode, the jerky mouse is only seen on the DL screen and not both screens?

Wim

The problem exists only when using "second screen only" - with the lid closed! This is really strange because the laptop screen is turned off anyway. The difference is that when you close the lid, windows makes the "second screen" into the "pc screen".

Works perfectly - no lag:
When screen is extended or mirrored.

And it's not links on web pages, it's most graphics that is being drawn. Scrolling a window, elements on web pages changing color etc. BUT strangely enough some graphic changes does NOT create lag. For example the taskbar buttons, ribbon menu buttons or taskswitch thumbnails. It's like it's affected by graphics that is drawn "the old way".

The problem is also affected by network traffic. When something uses the ethernet everything lags. When downloading something everything basically comes to a stand still.

Basically it doesn't work when windows is using only one screen and that screen is the usb 3.0 dock.

Hi all

Same Problem here.

I have a Surface Pro with Windows 8.1 on it, and i have a HP 3005 PR docking station for work.

I use the latest DisplayLink Software (7.4M2)

On my docking station i have two screens connected, one with a cable HDMI/DVI and the other with a DisplayPort/DVI.

At work i don't use the surface screen.

Mouse Lag are noticeable particularly with my browser (Chrome) and less with windows in general.

Is it only the mouse pointer or actually graphics in general? I think the mouse pointer is just experiencing the same effect.

Can you confirm that it behaves differently if the laptop screen is used in conjunction with the dock-connected screen[s] (win+P is good to play around with).

Can you confirm that when ethernet through the dock is being used the lag gets worse?

hey,

I don't know what is causing the mouse cursor lag, but as you i think it is related with graphics part in general.


Lag appears also sometimes when i move a window on the screen (quickly)
Sometimes, when i connect the dock to my laptop, only one screen turn on. I just have to unplug and plug it again.

My experience:
Surface screen alone = no lag
Surface screen + single external screen = lag
two external screens = lag


Using or not the RJ45 on the dock doesn't change anything for me.

I've got the same issue
 

Hi all.
I have a Dell Vostro 3560 (i7 8 threads with 16Gig RAM and a 256Gig SSD). I have an external 22"monitor connected through the VGA port, a 13" Toshiba USB (Display Link) monitor plugged in and a Toshiba U3.0 USB Port replicator that has another 22" monitor plugged into that. I was running Windows 8 and everything worked perfectly.
Yesterday I wiped my system and re-built it with Windows 8.1 and downloaded the latest DisplayLink driver for 8.1 and all the monitor work, but both the USB monitor and the monitor in the Port replicator both get major lag on them when moving the mouse, typing in anything or when moving anything like programs around in them. I have tried to play a video in them, but just lags so much. The actual laptop screen and the VGA cabled one work perfectly as they should, it is only the 2 that use the Display Link technology that have the lag. My collogue runs the same setup as me, but he has kept on Windows 8 and is still running perfectly and we are afraid to put him on the new driver in case that is part of the issue. The old driver that works on Windows 8 doesn't work on 8.1 sadly so I can't try that.

Would love to get a response, but from what I read so would many others in here.

Cheers
Alan :confused:

Hi Guys

I want to get to the bottom of this, and think it must be system specific. Can you tell me what resolution your DisplayLink screen is that shows lag?

Also - is it possible to record a video to show me what I should be looking for? I'd like to confirm you are all seeing lag for the same reasons.

Thanks

Wim

1680 x 1050 dvi-dvi

hi,

2x 1600*1200 here.
DisplayPort/DVI
HDMI/DVI

I have make a short vidéo to illustrate my problem.

https://mega.co.nz/#!Oc5g2CLa!Qgh3wi...eaimIyo4tyt78M

You can see the mouse lag when a vidéo is played.

Is that the same for you ?

Thank's

Your video doesn't actually show any of the problems mensioned. It just shows that things lag with full screen video which is probably by design since bandwidth is limited on USB 3.0.

I will also make a video when I get the time...

Is it the same on both screens? Is the laptop screen active? What if you close it?

By design??? LMAO. Do you have nay idea what the bandwidth of usb 3 is?? Far from "limited"

Funny stuff.

Unproductive comment.

Have you tried watching a video from a terminal server? The bandwidth is more than enough... does it work... no. Same here. It's about protocols, it's about processing power, it's about drivers, it's about latencies, it's about the GPU, it's about compression, and it's about how graphics memory is converted into a picture that is sent over USB.

Now you know what I meant with "by design". Next time, ask.

I was commenting on your comment "It just shows that things lag with full screen video which is probably by design since bandwidth is limited on USB 3.0."

It is not "by design", nor is the bandwidth "limited". So you are correct....it is about drivers in this case. 99% of the issues here are Windows 8 users, do the same on a Win7 box and there wont be this lag issue. It has nothing to do with USB 3 and bandwidth.

"and it's about how graphics memory is converted into a picture that is sent over USB" - those are functions of the drivers, correct?

"it's about processing power, it's about drivers, it's about latencies, it's about the GPU, it's about compression" Anyone that has a machine that came with USB 3 should have the bus speed and power to run USB 3. I was only stating your initial comment makes no sense.

Yes it's the same on both screens

So ! the mouse lag in my video is the same with my browser on some page ... USB3 bandwith too ? .....

Thanks for the video. The cursor is a bit slower here, as we're having to update all the pixels on the screen during full screen video. USB bandwidth is not the bottleneck. It's due to the screen updates we get with video and some applications.

It's understood and what you are seeing is expected at the moment. But we do want to improve this, as the mouse does not need to be a bit slower in these situations.

Wim

glad to read that wim

Thank's

My video:
https://www.youtube.com/watch?v=bQNno57eYYg

First shows that it works fine on laptop screen and mirrored and extended modes.
Then shows how it works fine with only secondary screen running but only when laptop is still open.
Then shows how the error behaves. Everything lags heavily. Windows, menus, mouse pointer, video. The computer becomes useless and no work can be done. But strangely enough some graphics is not affected by any lag...

Thanks for the video. This is interesting and the fact that it only occurs when you close the laptop lid leads me to believe it is not directly related to our driver software.

It looks like when the lid is closed, the laptop is downclocking the CPU, or changing something system to save battery power. The performance you are seeing looks like the performance I would expect on a really low end PC system.

Are there any power settings on the laptop that changes the behaviour when the lid closes?

Wim

Energy settings can be set differently whether on battery power or plugged in. The lid ACPI doesn't have anything to do with performance.

But just to try it out I set the CPU performance to the lowest when plugged in, and yes some hardly noticeable lag could be detected if I looked closely... but nothing in the vicinity off this behavior.

Underlining a link or changing the color of a little button on a website shouldn't make everything lag. And the keyboard buffer lags. And NIC traffic kills everything.

At the same time some graphic changes doesn't create any lag, as I show in the video. And for example internet explorer works better (because it uses the GPU more?!) These are all just hints, but something really strange and buggy is going on. Maybe you should get a lenovo yoga 13" and try it out? I can try to find another laptop with USB 3 in the office and test the dock with it.

Our driver has no change of behaviour when the lid is closed, so it is definitely something changing the in system to provide less CPU or system resources.

I've done a google about this and found this thread, which states that the yoga will throttle the CPU when in tablet mode. I wonder if closing the lid is triggering tablet mode.

This post suggests how to turn it off:

Can you try this and see if it solves the issue?

Wim

It seems to have fixed the problem by just disabling Intel "Dynamic Platform & Thermal Framework".

It's still strange that it seems to work for most people. And what does DPTF actually do? And why doesn't lenovo support their own product correctly?

There's a new driver for it that came two days ago:
http://support.lenovo.com/en_US/down...DocID=DS031992
But it doesn't install. I've emailed Lenovo about it.

Same Issue, no fix
 

I have the same mouse issues as described by people above on my Sony Vaio Laptop Win 8.1, however none of the fixes work and mine does not get better when it is any mode, extend duplicate nothing seems to matter, I'm using a Toshiba Dynadock latest version with latest firmware. latest HD4000 driver and latest displaylink driver!

Same issue
 

It's July 2014 and it doesn't work still like it should.
All drivers updated to latest...

Are there any solution found??