This bug was fixed in the package linux-firmware - 1.183
---------------
linux-firmware (1.183) eoan; urgency=medium
* update firmware for sound sof driver to fix the hang issue on several
Dell machines (LP: #1847250)
- SAUCE: update firmware for sound sof driver to fix hang issues
-- Seth Forshee <seth.fors...@canonical.com> Tue, 08 Oct 2019 13:54:11
-0500
** Changed in: linux-firmware (Ubuntu Eoan)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1847250
Title:
update firmware for sound sof driver to fix the hang issue on several
Dell machines
Status in HWE Next:
New
Status in linux-firmware package in Ubuntu:
Fix Released
Status in linux-firmware source package in Bionic:
Fix Committed
Status in linux-firmware source package in Disco:
Fix Committed
Status in linux-firmware source package in Eoan:
Fix Released
Bug description:
We expect this firmware update could be released with 19.10
[Impact]
We have a couple of Dell machines, after installing the system, it
will hang randomly, and this issue was reported by factory, they met
this issue a couple of times. Then we tried to reproduce this issue,
finally reproduced it.
[Fix]
Intel debugged this issue as well, and they provided 4 kernel patches
and a new firmware, we tested them, they really can fix the issue.
And the patches were sent the SRU already, now it is time to update
firmware.
[Test Case]
Install the system repeatedly and there is no hang issue anymore.
[Regression Risk]
Low, Intel told us there is no ABI change for the firmware, so
it is safe to run this firmware both with the old driver (not applied
those 4 patches) and the new driver (applied those 4 patches).
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