This bug was fixed in the package linux-oem-5.14 - 5.14.0-1007.7
---------------
linux-oem-5.14 (5.14.0-1007.7) focal; urgency=medium
* focal/linux-oem-5.14: 5.14.0-1007.7 -proposed tracker (LP: #1949349)
* Intel I225-IT ethernet controller: igc: probe of 0000:02:00.0 failed with
error -1 (LP: #1945576)
- igc: Remove _I_PHY_ID checking
- igc: Remove phy->type checking
* Fix Screen freeze after resume from suspend with iGPU [1002:6987]
(LP: #1949050)
- drm/amdgpu: reenable BACO support for 699F:C7 polaris12 SKU
- drm/amdgpu: add missing cleanups for Polaris12 UVD/VCE on suspend
- drm/amdgpu: Fix crash on device remove/driver unload
* Fail to detect audio output from external monitor (LP: #1948767)
- ALSA: hda: intel: Allow repeatedly probing on codec configuration errors
* Fix System hangs on black screen when reboot (LP: #1949321)
- SAUCE: drm/i915: Don't request GMBUS to generate irqs when called while
irqs
are off
- SAUCE: drm/i915/hdmi: Turn DP++ TMDS output buffers back on in
encoder->shutdown()
-- Timo Aaltonen <timo.aalto...@canonical.com> Mon, 01 Nov 2021
12:38:15 +0200
** Changed in: linux-oem-5.14 (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1942994
Title:
[SRU][OEM-5.13/OEM-5.14/U] Fix mt7921e wifi timeout error after resume
Status in HWE Next:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux-oem-5.13 package in Ubuntu:
New
Status in linux-oem-5.14 package in Ubuntu:
New
Status in linux-oem-5.13 source package in Focal:
Fix Released
Status in linux-oem-5.14 source package in Focal:
Fix Released
Bug description:
SRU justification:
[Impact]
Mediatek 7921 wifi card is lost when stress S3.
[Fix]
Check the valid events from firmware, make it resume back.
The patch is in maintainer's tree, but not merged to Linus's tree.
Due to the schedule, send SRU as SAUCE patch.
[Test]
Verified on hardware, wifi works fine after stress S3.
Tested on 3 platforms include the one platform that can reproduce the issue,
all good.
[Where problems could occur]
Mediatek 7921 wifi may be broken.
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