Problem
Power-saving settings put a USB capture device or camera into sleep mode while the broadcast is live.
Solution
Root Cause / Diagnostic:
Operating system power management profiles include aggressive power-saving protocols like USB Selective Suspend and PCIe Link State Power Management. When a capture device receives steady, unvarying data without active mouse or keyboard input on that port, the OS may misclassify the device as idle. Windows suspends power to the USB root hub, instantly severing the video input pipeline mid-broadcast.
Actionable Fix:
1. Set the Windows Power Plan to 'High Performance' or 'Ultimate Performance' in the Windows Control Panel.
2. Navigate to Advanced Power Settings > USB Settings > USB Selective Suspend Setting and change it to 'Disabled'.
3. Open Device Manager, inspect properties for all USB Root Hubs and Generic USB Hubs, and uncheck 'Allow the computer to turn off this device to save power'.
Pro Tip:
Use dedicated utility scripts or software like Caffeine to prevent operating system idle timers from triggering sleep states during long broadcast sessions.
Operating system power management profiles include aggressive power-saving protocols like USB Selective Suspend and PCIe Link State Power Management. When a capture device receives steady, unvarying data without active mouse or keyboard input on that port, the OS may misclassify the device as idle. Windows suspends power to the USB root hub, instantly severing the video input pipeline mid-broadcast.
Actionable Fix:
1. Set the Windows Power Plan to 'High Performance' or 'Ultimate Performance' in the Windows Control Panel.
2. Navigate to Advanced Power Settings > USB Settings > USB Selective Suspend Setting and change it to 'Disabled'.
3. Open Device Manager, inspect properties for all USB Root Hubs and Generic USB Hubs, and uncheck 'Allow the computer to turn off this device to save power'.
Pro Tip:
Use dedicated utility scripts or software like Caffeine to prevent operating system idle timers from triggering sleep states during long broadcast sessions.