You have been subscribed to a public bug:
On HP Z640 Workstations running ubuntu 16.04 with any official ubuntu
kernel newer than 4.4.0-21-generic USB devices do not work.
They appear to be listed correctly via lsusb and connects and
disconnects are logged but keyboards, mice, storage devices, ethernet
adapters do not work at all when they are connected directly via any USB
ports on the machines or through USB hubs.
All ubuntu packages are up to date. The BIOS version is the latest
(2.29).
The ubuntu 4.4.0-21.37 kernel works correctly as do older kernels from
ubuntu 16.04. Vanilla kernel.org kernels that I've tried such as 4.4.30
and 4.4.38 work correctly.
Ubuntu kernels greater than 4.4.0-21.37, from 4.4.0-22.38 all the way to
4.4.0-59.80 and 4.8.0-34.36 are affected by this issue.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
--
HP Z640 USB port stopped working since 4.4.0-22.38
https://bugs.launchpad.net/bugs/1661170
You received this bug notification because you are a member of Ubuntu Bugs,
which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
