** Changed in: linux-oem-osp1 (Ubuntu Bionic)
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1868217
Title:
Make Dell WD19 dock more reliable after suspend
Status in HWE Next:
New
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-osp1 package in Ubuntu:
New
Status in linux source package in Bionic:
Won't Fix
Status in linux-oem-osp1 source package in Bionic:
Fix Committed
Status in linux source package in Eoan:
Fix Released
Status in linux-oem-osp1 source package in Eoan:
Won't Fix
Status in linux source package in Focal:
Fix Released
Status in linux-oem-osp1 source package in Focal:
Won't Fix
Bug description:
[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.
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