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[Felisa-Chen <1804905@xxxxxxxxxxxxxxxxxx>]

** Changed in: glance
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1804905

Title:
  Linux, Ubuntu, 18.04, X36CI, NB13, After lid close/open, external
  screen show black screen about 10s.

Status in Glance:
  Invalid

Bug description:
  Description: 
  Connect monitor to SUT, local LCD and external monitor display as Join Displays normaly, close/open lid external monitor show black screen about 10s, then display OS desktop.

  
  Expected Behavior: 
  External monitor show OS desktop immediately after close/open lid.

  Severity:
  Sev-2
  P3
  C3
  L1

  Test environment:
  1. Project: Northbay 13
  2. BIOS: 0.4.1
  4. OS: CI Ubuntu 18.04
  5. Dock info: DOCK-126 REV-X00  Dell Salomon WD19TB Thunderbolt3 Dock DP/N 0XHKGV  Salomon_TBT3  FW:00.00.12

  Notes:
  1. VP on Northbay 
  2. VP on Salomon single-c/TBT cable Dock
  3. VP on BME Dock(REV-A05 Dock-114  FW:0.1.17)
  4. VP on IE Dock(REV-A03 FW:1.0.4)
  5. VP on Type-C/HDMI/DP/VGA
  6. VP on Join Displays/Mirror/Single Display mode
  7. VNP on Windows OS

  Cross Platform:
  NA

  Test case: 
  [CSV-TC-5222][WIS-TC-4399] Linux_NB_Salomon-Wired-Dock-The "DisplayPort Over USB-C" Connector/Port Video Test with "USB-C to HDMI" Adapter/Dongle,step 16.

  Steps to Reproduce:
    
  1. Clean Install Ubuntu OS 18.04
  2. Boot to OS and connect salomon dock to SUT;
  3. Connect an external monitor to SUT, local LCD and external monitor display as Join Displays normaly, close lid, find external monitor show black screen about 10s.-->Problem(refer to video)
  4. Open lid, find SUT and external monitor show black screen about 10s.-->Problem

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