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Old 10-28-2015, 09:45 PM   #1
tcprdg
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Join Date: Oct 2015
Posts: 1
Default Window latency on ubuntu 14.04

Hi,

I am facing somewhat an issue depicted here for windows in my DELL XPS-13 running Ubnutu 14.04 with Display link driver:

http://support.displaylink.com/knowl...ncy-desktop-pi

Issue:

1. I connect 2 external monitors to the docking station (along with network cable, USB mouse, USB keyboard also connected to the dock, D3100).
2. Plug the D3100 USB cable to the DELL XPS-13
3. All displays (including DELL XPS-13) light up (if not, i have to go and turn on each external monitory, a one time affair). Arrange the monitors/screen placement according to my monitors and laptop positioning.
4. As long as the laptop lid is open & it's acting as (a third) display, all good. The navigation is fluid smooth across all the 3 displays.
5. The moment I close the laptop lid, I am left with 2 external monitor displays as expected, but the mouse movement in this scenario seems to be slow, flickery. It's not fluid smooth anymore.

The monitors I'm using are:

1. HP Z Display Z23i ‑ 23" IPS LED Monitor None ‑ FullHD ‑ Black connected to D3100 dock via DVI-D (with HDCP support) with the HDMI adapter supplied with the dock.
2. HP Compaq LA2205wg 22 inch, connected to D3100 dock via DisplayPort (with HDCP support)


lsusb -d 17e9:
Bus 003 Device 005: ID 17e9:436e DisplayLink
Bus 003 Device 004: ID 17e9:436e DisplayLink

Linux 3.16.0-51-generic #69~14.04.1-Ubuntu SMP Wed Oct 7 15:32:41 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Driver installed: http://www.displaylink.com/downloads/ubuntu.php

Laptop: DELL XPS-13 Model 9343
Docking Station: Dell docking station USB 3.0 (D3100) - http://accessories.us.dell.com/sna/p...f=meekosystems

Appreciate any help in this regards.
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