Public bug reported:

os system: ubuntu 20.04.2 LTS

when I press the keyboard, I saw new log from ssh terminal.

/var/log/kern.log

Feb 23 17:31:56 shaozj-HPDesk kernel: [23628.303887] [drm:lspcon_wait_mode 
[i915]] *ERROR* LSPCON mode hasn't settled
Feb 23 17:31:56 shaozj-HPDesk kernel: [23628.307888] i915 0000:00:02.0: [drm] 
*ERROR* Link Training Unsuccessful
Feb 23 17:32:48 shaozj-HPDesk kernel: [23679.346636] [drm:lspcon_wait_mode 
[i915]] *ERROR* LSPCON mode hasn't settled
Feb 23 17:32:48 shaozj-HPDesk kernel: [23679.350790] i915 0000:00:02.0: [drm] 
*ERROR* Link Training Unsuccessful

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1916573

Title:
  display can not wake up from sleeping.

Status in linux package in Ubuntu:
  New

Bug description:
  os system: ubuntu 20.04.2 LTS

  when I press the keyboard, I saw new log from ssh terminal.

  /var/log/kern.log

  Feb 23 17:31:56 shaozj-HPDesk kernel: [23628.303887] [drm:lspcon_wait_mode 
[i915]] *ERROR* LSPCON mode hasn't settled
  Feb 23 17:31:56 shaozj-HPDesk kernel: [23628.307888] i915 0000:00:02.0: [drm] 
*ERROR* Link Training Unsuccessful
  Feb 23 17:32:48 shaozj-HPDesk kernel: [23679.346636] [drm:lspcon_wait_mode 
[i915]] *ERROR* LSPCON mode hasn't settled
  Feb 23 17:32:48 shaozj-HPDesk kernel: [23679.350790] i915 0000:00:02.0: [drm] 
*ERROR* Link Training Unsuccessful

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