Public bug reported:
[Impact]
When Dell WD19 dock connects multiple USB3 storage devices, the USB Hub
used internally may stop working after suspend.
[Fix]
Disable LPM on the Realtek USB Hub, and let xHCI controller make sure
the link state transition is completed.
[Test]
After applying the patches, the Dell WD19 works reliably after thousand
times for suspend/resume cycle.
[Regression Potential]
Low. This replaces the currently "msleep" way with more robust
mechanism. I also test other systems and nothing breaks.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem-osp1 (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: Won't Fix
** Affects: linux-oem-osp1 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Eoan)
Importance: Undecided
Status: New
** Affects: linux-oem-osp1 (Ubuntu Eoan)
Importance: Undecided
Status: Won't Fix
** Affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Affects: linux-oem-osp1 (Ubuntu Focal)
Importance: Undecided
Status: Won't Fix
** Also affects: linux-oem-osp1 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-oem-osp1 (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux-oem-osp1 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Eoan)
Importance: Undecided
Status: New
** Also affects: linux-oem-osp1 (Ubuntu Eoan)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Bionic)
Status: New => Won't Fix
** Changed in: linux-oem-osp1 (Ubuntu Eoan)
Status: New => Won't Fix
** Changed in: linux-oem-osp1 (Ubuntu Focal)
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/1868217
Title:
Make Dell WD19 dock more reliable after suspend
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