Post-encode "Sleep" appears non-functional (or forces Hibernate) on Modern Standby (S0) systems

[JNavas2]

DELETED

[JNavas2]

REVISED:

This is an observation regarding VidCoder's post-encode "Sleep" action on modern hardware using S0 Modern Standby rather than traditional ACPI S3 Sleep that may help avoid user frustration and problem reports.

Overview

On modern hardware where traditional S3 sleep is unsupported or disabled in firmware, initiating VidCoder's post-encode "Sleep" action appears to either do nothing or force the machine into Hibernate (S4), depending on whether system hibernation is enabled.

Trigger Conditions & System Behavior

This behavior appears to stem from how Windows 11 handles legacy Win32 suspension calls (such as SetSuspendState(FALSE, ...)):

• When Hibernation is Disabled (default): "Sleep" appears to do nothing at all. The post-encode countdown completes, but the application/system simply remains active and idling indefinitely.
• When Hibernation is Enabled (powercfg /h on): Windows appears to override the sleep request and redirect the call to force a full Hibernate (S4) cycle instead of entering Modern Standby.

Because Microsoft does not allow legacy suspension APIs to initiate an S0 Modern Standby state, there is no apparent workaround for desktop apps calling standard sleep functions on S0-only hardware.

Possibilities to Consider

1. Detection: It might be worth checking if VidCoder can query system power states via GetPwrCapabilities (checking for AoAc == TRUE without SystemS3) to identify when a machine relies strictly on Modern Standby.
2. UI Info: If detectable, a UI note or tooltip near the post-encode power options could inform users that selecting "Sleep" on S0-only setups will either do nothing or trigger hibernation (if enabled).

I'm passing this along in case others report unexpected post-encode power behavior on modern laptops or S0 desktop platforms.

Test Environment:

• Lenovo ThinkPad P14s Gen 4 AMD (21K5001JUS)
• BIOS R2FET71W (1.51)
• Windows 11 Version 10.0.26200 Build 26200