This bug was fixed in the package linux-oem-5.6 - 5.6.0-1036.39
---------------
linux-oem-5.6 (5.6.0-1036.39) focal; urgency=medium
* focal/linux-oem-5.6: 5.6.0-1036.39 -proposed tracker (LP: #1906396)
* Prevent thermal shutdown during boot process (LP: #1906168)
- SAUCE: thermal: core: Add indication for userspace usage
- SAUCE: thermal: int340x: Indicate userspace usage
- SAUCE: thermal: intel: intel_pch_thermal: Indicate userspace usage
* alsa/hda: The sound output is abnormal when the balance is on center after
switch from the audio speaker to headset on a Dell AIO (LP: #1905808)
- ALSA: hda/realtek - Fixed Dell AIO wrong sound tone
* [SRU][OEM-5.6] UBUNTU: SAUCE: Fix brightness control on BOE 2270 panel
(LP: #1904991)
- SAUCE: drm/i915: Force DPCD backlight mode for BOE 2270 panel
* Use ACPI S5 for reboot (LP: #1904225)
- PM: ACPI: reboot: Use S5 for reboot
-- Timo Aaltonen <timo.aalto...@canonical.com> Wed, 02 Dec 2020
09:55:46 +0200
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1906168
Title:
Prevent thermal shutdown during boot process
Status in HWE Next:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux-oem-5.10 package in Ubuntu:
Invalid
Status in linux-oem-5.6 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Won't Fix
Status in linux-oem-5.10 source package in Focal:
New
Status in linux-oem-5.6 source package in Focal:
Fix Released
Status in linux source package in Groovy:
New
Status in linux source package in Hirsute:
Incomplete
Bug description:
[Impact]
Surprising thermal shutdown at boot on Intel based mobile workstations.
[Fix]
Since these thermal devcies are not in ACPI ThermalZone, OS shouldn't
shutdown the system.
These critial temperatures are for usespace to handle, so let kernel
know it shouldn't handle it.
SRU for stable kernels will be sent after the fix is in upstream.
[Test]
Use reboot stress as a reproducer. 5% chance to see a surprising
shutdown at boot.
With the fix applied, the thermal shutdown is no longer reproducible.
[Where problems could occur]
For ACPI based platforms, we still have "acpitz" to protect systems from
overheating. If these acpitz sensors don't work, then the system could
face real overheating issue.
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