** Changed in: linux-oem-5.6 (Ubuntu Focal)
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1895606

Title:
  Thunderbolt3 daisy chain sometimes doesn't work

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  In Progress
Status in linux-oem-5.6 package in Ubuntu:
  Invalid
Status in linux-oem-osp1 package in Ubuntu:
  Invalid
Status in linux-oem-osp1 source package in Bionic:
  In Progress
Status in linux source package in Focal:
  Triaged
Status in linux-oem-5.6 source package in Focal:
  Fix Committed
Status in linux source package in Groovy:
  In Progress

Bug description:
  [Impact]
  Plug-in thunderbolt external monitor, and then plug-in thunderbolt external 
Hard drive on the external monitor, it sometimes can't detect the TBT storage.

  [Fix]
  Retry tb_drom_read_n() when failed fixes this issue.

  [Test]
  Verified on Dell platform with ASUS PA27AC Thunderbolt 3, and HP P800 TBT 
storage.

  [Regression Potential]
  Low, it only add 100ms delay and retry once.

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