This bug was fixed in the package linux-firmware - 1.187.4
---------------
linux-firmware (1.187.4) focal; urgency=medium
* Add new iwlwifi firmware to fix AX201 hang (LP: #1900883)
- UBUNTU: SAUCE: Add iwlwifi-QuZ-a0-hr-b0-50.ucode
* Fix broken Realtek 8821C BT after S3 (LP: #1901129)
- rtl_bt: Update RTL8821C BT FW to 0xAA6C_A99E
-- Seth Forshee <seth.fors...@canonical.com> Wed, 28 Oct 2020 16:05:46
-0500
** Changed in: linux-firmware (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1900883
Title:
Add new iwlwifi firmware to solve AX201 hang
Status in HWE Next:
New
Status in linux-firmware package in Ubuntu:
Fix Released
Status in linux-firmware source package in Focal:
Fix Released
Bug description:
[Impact]
Intel AX201 firmware crashes or hardware RX ring buffer hangs after S3.
[Fix]
Use new firmware from linux-firmware.git can solve the issue.
[Test]
WiFi works for each cycle of 1000 S3 cycles.
[Regression Potential]
Both Focal 5.4 and OEM 5.6 kernel use this firmware, so it might regress
current 5.4 users. I did a smoke test with this firmware on Focal 5.4,
and I didn't see any regression.
Instead of cherry-pick the commit, only add the firmware needed for
AX201 to minimize the regression risk.
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