This bug was fixed in the package linux-firmware - 1.178.6
---------------
linux-firmware (1.178.6) disco; urgency=medium
* Add RTL8822cu bluetooth support (LP: #1849598)
- rtl_bt: Update RTL8822C BT FW to V0x098A_94A4
- rtl_bt: Update configuration file for BT part of RTL8822CU
* System will auto resume from sleep on receiving LE ADV after paired
with BT LE devices(LP: #1849779)
- linux-firmware: Update firmware file for Intel Bluetooth 9260
* Intel Bluetooth AX201 HarrisonPeak (HrP) firmware causes system hang
in deep suspend (LP: #1850738)
- linux-firmware: Update firmware file for Intel Bluetooth AX201
* Revert the firmware update for sound/sof (LP: #1850739)
- Revert "UBUNTU: SAUCE: update firmware for sound sof driver to fix hang
issues"
* Add support for Realtek 8723DE wireless adapter (LP: #1780590)
- rtw88: RTL8723D: add firmware file v48
linux-firmware (1.178.5) disco; urgency=medium
* Intel Bluetooth AX201, aka HarrisonPeak (HrP), not supported
(LP: #1842893)
- linux-firmware: Add firmware file for Intel Bluetooth AX201
- linux-firmware: Update firmware file for Intel Bluetooth AX201
* 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
linux-firmware (1.178.4) disco; urgency=medium
* Intel Wireless-AC 9462/9560 not supported on ICL (LP: #1835879)
- linux-firmware: Update firmware file for Intel Bluetooth AX201
* Bluetooth fails with "Bluetooth: hci0: request failed to create LE
connection: status 0x0c" message with Kernel 4.20 and up [9df0:0034]
(LP: #1836467)
- linux-firmware: Update firmware file for Intel Bluetooth 9560
- linux-firmware: Update firmware file for Intel Bluetooth 9560
* [Intel CyclonePeak] Pairing new BT mouse fails sometimes Edit
(LP: #1836983)
- linux-firmware: Update firmware file for Intel Bluetooth 22161
-- Seth Forshee <seth.fors...@canonical.com> Tue, 05 Nov 2019 15:56:27
-0600
--
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Packages, which is subscribed to linux-firmware in Ubuntu.
https://bugs.launchpad.net/bugs/1850739
Title:
Revert the firmware update for sound/sof
Status in linux-firmware package in Ubuntu:
Confirmed
Status in linux-firmware source package in Bionic:
Fix Released
Status in linux-firmware source package in Disco:
Fix Released
Status in linux-firmware source package in Eoan:
Fix Released
Bug description:
SRU Justification
Impact: An update to the sound sof firmware does not set the PV bit
for cometlake, and thus will not load. This is a regression on
cometlake platforms.
Fix: Revert the update.
Test Case: Check that the firmware will load on affected platforms.
Regression Potential: This fixes a regression on cometlake paltforms,
but will regress the platforms fixed by the patch being reverted.
---
I submitted a firmware update for sound/sof, the tracking bug number
is: https://bugs.launchpad.net/bugs/1847250
Recently we found this update introduced one problem for cometlake
platforms, cometlake need to check PV bit when loading the firmware,
but this update doesn't set the PV bit for cometlake, as a result, on
cometlake platforms, it always fails to load the firmware.
So we should revert this update
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