Bug 2427927

Summary:	Intel-Undervolt does not reapply undervolt or any other settings upon wake from suspend-then-hibernate
Product:	[Fedora] Fedora	Reporter:	leonardcastine75
Component:	intel-undervolt	Assignee:	Artem <ego.cordatus>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	43	CC:	ego.cordatus
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
URL:	https://github.com/kitsunyan/intel-undervolt/pull/41
Whiteboard:
Fixed In Version:	intel-undervolt-1.7-23.fc43 intel-undervolt-1.7-23.fc42	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-01-27 05:37:12 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description leonardcastine75 2026-01-08 14:19:43 UTC

When using Intel-undervolt to apply an undervolt to my laptop, the undervolt is removed upon suspend and waking when using suspend-then-hibernate. This happened every time unless the Intel-undervolt.service file is edited as suggested in the linked pull request. This can be verified by runnning ‘sudo intel-undervolt read’ before and after suspending-then-hibernating and waking. Before the under volt is applied, and after the setting is reset. 

Reproducible: Always

Steps to Reproduce:
1.Enable hibernate
2.Enable suspend-then-hibernate
3. Apply undervolt using Intel-undervolt.
4. Check undervolt is applied using ‘sudo intel-undervolt read’
4. Enter suspend then hibernate
5. Wake
6. Check undervolt is gone ‘sudo intel-undervolt read’
Actual Results:
Undervolt is reset after wake from suspend-then-hibernate

Expected Results:
Undervolt should be reapplied upon every wake from suspend-them-hibernate

Comment 1 Fedora Update System 2026-01-19 16:52:50 UTC

FEDORA-2026-2d2b61984b (intel-undervolt-1.7-23.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-2d2b61984b

Comment 2 Fedora Update System 2026-01-19 17:06:34 UTC

FEDORA-2026-471a39de3f (intel-undervolt-1.7-23.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-471a39de3f

Comment 3 Fedora Update System 2026-01-20 01:58:59 UTC

FEDORA-2026-2d2b61984b has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-2d2b61984b`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-2d2b61984b

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Fedora Update System 2026-01-20 02:36:25 UTC

FEDORA-2026-471a39de3f has been pushed to the Fedora 42 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-471a39de3f`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-471a39de3f

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-01-27 05:37:12 UTC

FEDORA-2026-2d2b61984b (intel-undervolt-1.7-23.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 6 Fedora Update System 2026-01-27 06:43:02 UTC

FEDORA-2026-471a39de3f (intel-undervolt-1.7-23.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.