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