ath11k WIFI not working in proposed kernel 5.11.0-19-generic
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Hirsute |
Fix Released
|
Undecided
|
You-Sheng Yang |
Bug Description
[SRU Justification]
[Impact]
Bug 1928857 pulls stable patches from v5.11.20, which contains commit
dc764382762e {"bus: mhi: core: Process execution environment changes
serially") that cause a regression on ath11k cards and fails device
init:
mhi mhi0: MHI did not enter SBL
[Fix]
Upsteram commit 4884362f6977 ("bus: mhi: core: Download AMSS image
from appropriate function"), also landed to v5.12.6 but not v5.11
stable tree, has fixed this.
[Test Case]
Tested on Dell XPS 13 9310. No longer has this regression and both
WiFi/Bluetooth works fine as before.
[Where problems could occur]
The actual firmware downloading process is moved into a state machine
callback that has identical semantics with before. Additions or removals
to this in the future may change the timing of fw being dowloaded.
[Other Info]
While the commit causing this regress is backported to 5.11 onward and
fixed in v5.12 and 5.13, leaving Hirsute is the only victim.
========== original bug report ==========
See these references for more information:
- https:/
- https:/
Can you please prevent this already fixed bug from being introduced any further into Ubuntu.
Thanks.
tags: | added: hwe-networking-wifi ihv-qualcomm |
Changed in linux (Ubuntu Hirsute): | |
status: | In Progress → Fix Committed |
tags: | added: verification-needed-hirsute |
This is reproducible with 5.11.0-19-generic from hirsute-proposed, but not reproducible with 5.13 for impish. Also oem kernels (5.10-oem-1029, 5.13-oem) are not affected.