[SOLVED] LM19 mouse flickering and lagging with docking station

[leicai]

Dear all,
I recently installed LM19 and extended a second monitor with docking station UD3900.
I recorded a video and uploaded to Youtube and you can see the mouse flickers and lags:https://www.youtube.com/watch?v=bpr-bHnjUEw&t=5s.
The similar problem can be found in the link:https://askubuntu.com/questions/947375/ ... 92#1027692.
If I don't use the docking station and use the HDMI output interface. It works well. But I need two external monitors.
The following is the output of inxi -Fxz:

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System:    Host: msi Kernel: 4.15.0-34-generic x86_64 bits: 64 compiler: gcc v: 7.3.0 Desktop: Cinnamon 3.8.9 
           Distro: Linux Mint 19 Tara base: Ubuntu 18.04 bionic 
Machine:   Type: Laptop System: Micro-Star product: GE62 6QD v: REV:1.0 serial: <filter> 
           Mobo: Micro-Star model: MS-16J5 v: REV:0.A serial: <filter> UEFI: American Megatrends 
           v: E16J5IMS.107 date: 10/16/2015 
Battery:   ID-1: BAT1 charge: 43.3 Wh condition: 44.3/53.4 Wh (83%) model: MSI BIF0_9 status: Unknown 
CPU:       Topology: Quad Core model: Intel Core i7-6700HQ bits: 64 type: MT MCP arch: Skylake-S rev: 3 
           L2 cache: 6144 KiB 
           flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 41472 
           Speed: 800 MHz min/max: 800/3500 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 4: 800 5: 800 6: 800 
           7: 800 8: 800 
Graphics:  Device-1: Intel HD Graphics 530 driver: i915 v: kernel bus ID: 00:02.0 
           Device-2: NVIDIA GM107M [GeForce GTX 960M] driver: nvidia v: 390.48 bus ID: 01:00.0 
           Display: x11 server: X.Org 1.19.6 driver: modesetting,nvidia unloaded: fbdev,nouveau,vesa 
           resolution: 1280x1024~60Hz, 1920x1080~60Hz 
           OpenGL: renderer: GeForce GTX 960M/PCIe/SSE2 v: 4.6.0 NVIDIA 390.48 direct render: Yes 
Audio:     Device-1: Intel Sunrise Point-H HD Audio driver: snd_hda_intel v: kernel bus ID: 00:1f.3 
           Device-2: DisplayLink type: USB driver: cdc_ncm,snd-usb-audio,usbfs bus ID: 2-3.1:3 
           Sound Server: ALSA v: k4.15.0-34-generic 
Network:   Device-1: Intel Wireless 3165 driver: iwlwifi v: kernel port: e000 bus ID: 02:00.0 
           IF: wlp2s0 state: down mac: <filter> 
           Device-2: Qualcomm Atheros Killer E2400 Gigabit Ethernet driver: alx v: kernel port: d000 
           bus ID: 03:00.0 
           IF: enp3s0 state: down mac: <filter> 
           IF-ID-1: enp0s20f0u4 state: unknown speed: N/A duplex: N/A mac: <filter> 
           IF-ID-2: enx8cae4cea7ba8 state: down mac: <filter> 
Drives:    Local Storage: total: 1.02 TiB used: 113.22 GiB (10.9%) 
           ID-1: /dev/sda vendor: Samsung model: SSD 850 EVO M.2 120GB size: 111.79 GiB 
           ID-2: /dev/sdb vendor: HGST (Hitachi) model: HTS721010A9E630 size: 931.51 GiB 
Partition: ID-1: / size: 100.83 GiB used: 10.75 GiB (10.7%) fs: ext4 dev: /dev/sda4 
           ID-2: /boot size: 921.7 MiB used: 149.2 MiB (16.2%) fs: ext4 dev: /dev/sda1 
           ID-3: /home size: 907.60 GiB used: 102.29 GiB (11.3%) fs: ext4 dev: /dev/sdb2 
           ID-4: /tmp size: 7.27 GiB used: 33.9 MiB (0.5%) fs: ext4 dev: /dev/sda3 
           ID-5: swap-1 size: 9.31 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sdb1 
Sensors:   System Temperatures: cpu: 68.5 C mobo: 27.8 C gpu: nvidia temp: 49 C 
           Fan Speeds (RPM): N/A 
Info:      Processes: 266 Uptime: 3h 05m Memory: 7.70 GiB used: 2.45 GiB (31.8%) Init: systemd runlevel: 5 
           Compilers: gcc: 7.3.0 Shell: bash v: 4.4.19 inxi: 3.0.26 

[Hoser Rob]

Have you seen the Linux section on the Plugable home page?

https://plugable.com/platforms/linux/

Unfortunately I don't see your device listed there.

[leicai]

Hello,

this is the link:https://plugable.com/products/ud-3900/

[leicai]

DId anyone meet this problem also?

[leicai]

Dear all,
The problem is solved by the new update of DisplayLink manager.
The new update for Ubuntu 18.04 was released:https://www.displaylink.com/downloads/ubuntu.

FIrst run this in terminal to uninstall older displaylink manager:

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sudo displaylink-installer uninstall

Second, install the new version(go to your directory of "displaylink-driver-4.4.24.run"):

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sduo ./displaylink-driver-4.4.24.run

restart your computer.

Do be upset when you find the flickering still exists, use the following code:

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sudo service lightdm restart

as I mentioned in this link:https://askubuntu.com/questions/947375/ ... 92#1027692

Thanks so much for the engineers of the new updates.
Do not hesitate to discuss with me if you have any problems.