Graphics and mouse pointer LAG still unresolved!

AlanWooler · 11-08-2013, 05:51 PM

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

Wim · 11-11-2013, 11:09 AM

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

Pazuzu · 11-12-2013, 08:51 AM

1680 x 1050 dvi-dvi

plop28 · 11-12-2013, 10:01 AM

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

Pazuzu · 11-13-2013, 02:44 PM

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?

rsenio · 11-13-2013, 03:11 PM

Quote:

Originally Posted by Pazuzu

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.

Pazuzu · 11-13-2013, 03:57 PM

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.

plop28 · 11-14-2013, 08:16 AM

Quote:

Originally Posted by Pazuzu

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?

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 ? .....

Wim · 11-20-2013, 02:48 PM

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

11-08-2013, 05:51 PM	#1
AlanWooler Junior Member Join Date: Nov 2013 Posts: 1	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

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11-11-2013, 11:09 AM	#2
Wim Senior Member Join Date: Feb 2009 Posts: 1,561	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

11-12-2013, 08:51 AM	#3
Pazuzu Junior Member Join Date: Oct 2013 Posts: 13	1680 x 1050 dvi-dvi

11-12-2013, 10:01 AM	#4
plop28 Junior Member Join Date: Oct 2013 Posts: 11	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

11-13-2013, 02:44 PM	#5
Pazuzu Junior Member Join Date: Oct 2013 Posts: 13	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?

11-13-2013, 03:57 PM	#7
Pazuzu Junior Member Join Date: Oct 2013 Posts: 13	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.

11-20-2013, 02:48 PM	#9
Wim Senior Member Join Date: Feb 2009 Posts: 1,561	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