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/1904225
Title:
Use ACPI S5 for reboot
Status in HWE Next:
New
Status in OEM Priority Project:
New
Status in linux package in Ubuntu:
Confirmed
Status in linux-oem-5.6 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Fix Committed
Status in linux-oem-5.6 source package in Focal:
Fix Released
Status in linux source package in Groovy:
Fix Committed
Status in linux-oem-5.6 source package in Groovy:
Invalid
Bug description:
[Impact]
On some HP laptops, BIOS hotkeys don't work right after reboot, becuase
OS doesn't call _PTS to indicate ACPI it's rebooting.
[Fix]
Follow Windows and use S5 for reboot.
[Test case]
Reboot and see if hotkeys like F10/F11 can trigger BIOS functions.
Hotkeys work great with the patch applied.
[Where problems could occur]
If there are platforms don't expect S5 for reboot then there could be
unexpected result.
However Windows uses S5 so that's rather unlikely.
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