linuxmint / linuxmint/cinnamon

Screen luminosity resets to max when waking up from suspend

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BUG
Dominant language
JavaScript
Stars
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Distribution

Mint 22.1

Package version

6.4.8

Graphics hardware in use

Nvidia RTX 3050 Laptop / AMD Radeon Graphics (iGPU) (only the latter is used)

Frequency

Always

Bug description

My laptop (Lenovo Ideapad 5 Pro 16ACH6) is set to suspend after 5 minutes. I'm used to have the screen luminosity to a low setting. However, when I wake up my laptop from suspend, the luminosity resets to the max setting.
This bug appeared only after the 22.1 big update. 22.0 worked as expected.

Steps to reproduce
  1. Set the laptop luminosity to any setting (ideally a low one to notice the issue)
  2. In the Power Management app, set the "Suspend when inactive for..." setting to anything but "Never" (for both A.C. and battery power)
  3. Let the laptop suspend
  4. Wake the laptop from suspend
Expected behavior

The screen luminosity stays at the setting set before the suspension.

Additional information

No response

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No file, test, or entry point is named. Start by reproducing the suspend and wake sequence on Mint 22.1 with package version 6.4.8, then trace the screen-luminosity handling around wake; done means the pre-suspend luminosity is retained.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, linux
Domain
desktop, operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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