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fix: apply target refresh rate to newly-enabled displays in staged mode #31

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fix: apply target refresh rate to newly-enabled displays in staged mode #31

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16 changes: 16 additions & 0 deletions src/Core/ProfileManager.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -863,6 +863,22 @@ private bool ApplyStagedConfiguration(List<DisplayConfigHelper.DisplayConfigInfo
return false;
}

// Explicitly apply resolution and refresh rate for monitors that were just activated in this phase.
// ApplyDisplayTopology only flips the active/inactive flags - it does not select a target mode,
// so a newly-enabled monitor can come up at whatever default mode Windows picks (often 60Hz).
var newlyEnabledConfigs = targetConfigs
.Where(tc => tc.IsEnabled && !phase1Configs.Any(p => p.TargetId == tc.TargetId && p.SourceId == tc.SourceId))
.ToList();

foreach (var config in newlyEnabledConfigs)
{
logger.Debug($"Phase 2: Changing mode for newly-enabled {config.DeviceName} to {config.Width}x{config.Height}@{config.RefreshRate}Hz");
if (!DisplayHelper.ChangeResolution(config.DeviceName, config.Width, config.Height, (int)config.RefreshRate))
{
logger.Warn($"Phase 2: Failed to change resolution for newly-enabled display {config.DeviceName}.");
}
}

// Apply final positions for all monitors
if (!DisplayConfigHelper.ApplyDisplayPosition(targetConfigs))
{
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