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While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1822089
and then change the status of the bug to 'Confirmed'.
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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: disco
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https://bugs.launchpad.net/bugs/1822089
Title:
Frequent (silent) USB disconnects with Dell TB16 dock
Status in linux package in Ubuntu:
Incomplete
Bug description:
I see something similar (but different) to bug 1766076 on a Dell 5530:
- Using kernel 5.0.4 from UKUU (because current Ubuntu kernel suffers from
other bugs that make this dock unusable)
- BIOS 1.6.0
- TB16 dock with a single monitor on the display port, providing power, using
native enumeration setting in the BIOS
- Microsoft comfort curve keyboard, webcam, headset connected to dock USB
ports
- Wired ethernet via the dock.
Keyboard stops responding frequently. There is no output in dmesg
when this happens. If I later unplug the keyboard I see a
disconnection message in dmesg and I can reconnect it to the same
port. Sometimes it works for a day after this, other times it works
for <60s.
Other devices disconnect too but the pattern is different. Much more
likely to see the disconnect under heavy load, such as webcam/headset
getting disconnected during a conference call.
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