now we got the commit caused the issue:
For software side, it is related with below commit. If below commit is
reverted, there is no hang(or flicker) anymore. Below canonical commit
deleted “port > 4” case, but this piece of code exists in latest drm-
next. We don’t know why they deleted it.
We tried Ubuntu-5.19.0-18.18 + reverting below commit, no hang, no
flicker with J0 hardware. With Ubuntu-5.19.0-18.18, issue could be
reproduced.
commit 051e5735c9e29d303fb972ab3fd2082847747a78
Author: Andrea Righi andrea.ri...@canonical.com
Date: Tue Sep 20 09:24:53 2022 +0200
Revert "drm/i915/opregion: check port number bounds for SWSCI display power
state"
This reverts duplicate commit fea313f1cd2b5f2e319e281d7a309f5e6eefaba7
that was incorrectly applied via stable update (commit was already
present upstream).
Signed-off-by: Andrea Righi andrea.ri...@canonical.com
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https://bugs.launchpad.net/bugs/1990212
Title:
ADL-P-IOTG graphics cause Ubuntu 22.10 hang
Status in intel:
New
Status in linux package in Ubuntu:
Incomplete
Bug description:
[Bug Description]
ADL-P platform from IOTG will have hang issue. when blacklist i915, the
system will back to well.
but with official 5.19 kernel which support ADL-P (IOTG), we don't find this
issue.
Canonical please check what addition patches has been included your
i915 driver that cause system hang.
[HW/SW Information]
Target Kernel: 5.19
Target Release: 22.10
Alder Lake -P from Intel IOTG
[Business Justification]
Function enabling
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