Fix: bidirectional Quiet<->LowPower fallback in platform_profile setters

[f4mrfaux]

Summary

On hardware where the kernel ACPI platform_profile sysfs exposes only one of Quiet / LowPower for the same semantic profile (different ASUS DMI quirks expose different names — e.g. GA503QR exposes quiet balanced performance, never low-power), setting the absent variant fails with:

org.freedesktop.DBus.Error.NotSupported:
RogPlatform: platform_profile: (low-power) not supported

even when the equivalent IS in choices. The existing fallback in set_platform_profile_on_battery / set_platform_profile_on_ac only handled Quiet -> LowPower, and the bare set_platform_profile D-Bus property had no fallback at all.

This PR makes the alias bidirectional everywhere it matters:

• set_platform_profile (asusd/src/ctrl_platform.rs:469) — substitutes Quiet <-> LowPower when the requested variant isn't in platform_profile_choices but its semantic equivalent is.
• set_platform_profile_on_battery (~line 523) and set_platform_profile_on_ac (~line 562) — extended from one-direction to bidirectional, so the canonical name (the one the kernel exposes) is what gets persisted to /etc/asusd/asusd.ron.
• select_power_profile_for_source (~line 260) — extended to normalize both directions at apply-time, fixing stale-config rehydration after reboot or AC/BAT transitions.

Background — relation to #648

The CLI-string-parsing portion of GitLab issue #648 was fixed by GitLab MR !226 (commit 9366b0e) which made low-power / lowpower / LowPower / low_power all parse to PlatformProfile::LowPower. That fix is necessary but not sufficient: the parsed enum then reaches set_platform_profile, which checks choices.contains(&policy) and rejects on hardware exposing only the kernel-renamed sibling name. This PR closes that follow-up gap.

EPP / behavior preservation

EPP outcomes are unchanged. Both Quiet and LowPower already map to the same source in:

• get_config_epp_for_throttle (asusd/src/ctrl_platform.rs:254-255) — both → profile_quiet_epp
• impl From<PlatformProfile> for CPUEPP (rog-platform/src/cpu.rs:209-210) — both → CPUEPP::Power

So substitution does not affect what EPP gets written; only what name is stored in config and which sysfs string the kernel sees.

Test plan — executed locally on patched daemon

Tested live on GA503QR (linux-g14 7.0.5, /sys/firmware/acpi/platform_profile_choices = quiet balanced performance) via a swap-in-place patched daemon (systemctl stop asusd; systemd-run /target/release/asusd):

#	Command	Pre-patch	Post-patch	Result
1	asusctl profile set LowPower	NotSupported (low-power)	kernel=quiet, active=Quiet	✅ FIX
2	asusctl profile set Quiet	works	works	✅ no regression
3	asusctl profile set Balanced	works	works	✅ no regression
4	asusctl profile set Performance	works	works	✅ no regression
5	asusctl profile set NotARealProfile	CLI parser rejects	CLI parser rejects	✅ no regression
6	asusctl profile set LowPower -b	broken / wrong config	config persists Quiet (canonical), applied	✅ FIX
7	asusctl profile set LowPower -a	broken / wrong config	config persists Quiet (canonical), applied	✅ FIX

Config persistence verified — /etc/asusd/asusd.ron after set LowPower -b -a:

platform_profile_on_battery: Quiet,
platform_profile_on_ac: Quiet,

(both stored as Quiet, the available canonical name, not LowPower).

cargo check -p asusd and cargo build --release -p asusd both clean on ogc/main tip.

What we did NOT validate locally

This hardware exposes quiet balanced performance only — never low-power. So the reverse direction of the bidirectional fallback (a user passing Quiet on a hypothetical low-power-only machine) was reasoned-through (matches the existing one-direction precedent) but not hardware-tested. The patch is a strict no-op when the requested profile IS in choices, so on dual-choice or LowPower-only hardware the behavior should be unchanged from before this PR.

Reviewer notes

• Pre-existing behavior left untouched: set_platform_profile writes config (line 480 in main) before validating against choices. The alias substitution doesn't widen that pre-existing window — the substitution only triggers when the validation would otherwise reject. Worth a separate cleanup PR if desired.
• No tests exist under #[cfg(test)] for set_platform_profile or the alias paths (verified via rg). Happy to add unit tests in a follow-up if maintainers prefer.

🤖 Generated with Claude Code

[NeroReflex]

Thanks you. This looks like correct but I wonder why have you noticed it? Took the nvme of a laptop and reused in another laptop?

Anyway could you reorganize that code into function(s) and add a few test? Those are becoming too long for my taste.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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• rog-control-center/src/ui/setup_fans.rs

📜 Recent review details

🔇 Additional comments (1)

rog-control-center/src/ui/setup_fans.rs (1)

156-156: LGTM!

Also applies to: 178-178, 197-197

---

📝 Walkthrough

Summary by CodeRabbit

• New Features

  • Profile selection now automatically resolves aliases to the closest supported platform profile.
  • Quiet and Low Power profiles can substitute for one another when only one is available.
  • AC and battery profile settings consistently save the resolved supported profile.

• Bug Fixes

  • Improved fan setup loading and default resets when the preferred Quiet profile is unavailable.
  • Added clearer handling and logging when a requested profile is rewritten.

Walkthrough

The change adds shared Quiet and LowPower alias resolution. The daemon uses it for configured, direct, AC, and battery profile selection. Fan-curve loading and reset operations use the same resolution logic.

Changes

Platform profile alias resolution

Layer / File(s)	Summary
Alias resolution contract and tests rog-platform/src/platform.rs	PlatformProfile::resolve_alias substitutes unavailable Quiet and LowPower profiles when the alternate is available. Tests cover substitutions, unchanged profiles, and unavailable aliases.
Daemon profile selection and persistence asusd/src/ctrl_platform.rs	Profile requests and configured AC or battery profiles resolve aliases before validation, persistence, and application.
Fan-curve profile selection rog-control-center/src/ui/setup_fans.rs	Initial fan-curve loading, reset operations, and refreshed data use the resolved profile against available platform profiles.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: ⚪ Minimal · up to 2e8ac

The PR normalizes the equivalent Quiet and LowPower profile names across direct setting, power-source configuration, and rehydration, while preserving existing EPP behavior. No actionable merge-blocking risk remains beyond normal checks and review.

Sequence Diagram(s)

sequenceDiagram
  participant User
  participant FanUI
  participant PlatformProfile
  participant asusd
  User->>FanUI: load or reset fan curve
  FanUI->>PlatformProfile: resolve_alias(profile, choices)
  PlatformProfile-->>FanUI: resolved profile
  FanUI->>asusd: apply fan-curve profile

Loading

Possibly related PRs

• OpenGamingCollective/asusctl#280: Both changes update platform-profile alias handling in asusd/src/ctrl_platform.rs and rog-platform/src/platform.rs.

Suggested labels: asusd, rog-control-center, rog-profiles, rog-platform, fix

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely identifies the bidirectional Quiet-to-LowPower fallback change in platform profile setters.
Description check	✅ Passed	The description gives a detailed summary, testing results, environment, limitations, and issue context, although it does not follow the template headings exactly.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[coderabbitai]

Actionable comments posted: 1

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Inline comments:
In `@rog-control-center/src/ui/setup_fans.rs`:
- Line 178: Update the reset path’s readback request to resolve
PlatformProfile::Quiet against choices, matching the existing target resolution
before calling set_curves_to_defaults; preserve the UI refresh flow and use the
resolved profile for the request on LowPower-only platforms.

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: 139ab83c-beee-47d8-98b2-816d3d494f68

📥 Commits

Reviewing files that changed from the base of the PR and between 2dca621 and 05576dc.

📒 Files selected for processing (3)

• asusd/src/ctrl_platform.rs
• rog-control-center/src/ui/setup_fans.rs
• rog-platform/src/platform.rs

📜 Review details

🔇 Additional comments (3)

rog-platform/src/platform.rs (1)

170-189: LGTM!

Also applies to: 325-394

asusd/src/ctrl_platform.rs (1)

284-298: LGTM!

Also applies to: 534-534, 580-583, 615-618

rog-control-center/src/ui/setup_fans.rs (1)

156-156: LGTM!