Sync_control_vsync_provider Cc 141 Calculated Bogus Refresh Interval
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Reviewed by Calculator Editorial Team
The sync_control_vsync_provider CC 141 calculated bogus refresh interval refers to an anomaly in display synchronization where the system calculates an incorrect refresh interval, potentially causing visual artifacts or performance issues. This article explains the phenomenon, provides a calculation tool, and discusses its implications for display technology.
What is sync_control_vsync_provider CC 141?
The sync_control_vsync_provider is a component in display synchronization systems that manages vertical synchronization (vsync) signals. The CC 141 designation refers to a specific configuration or error code in this provider. When the system calculates a "bogus" refresh interval, it means the timing values used for display updates are incorrect, leading to potential visual tearing or inconsistent frame rates.
This issue typically occurs when there's a mismatch between the display's native refresh rate and the application's rendering rate, or when the sync_control_vsync_provider fails to properly negotiate the timing parameters.
Common Causes
- Display driver issues or outdated firmware
- Incompatible application rendering settings
- Hardware limitations or power management settings
- Operating system-level synchronization problems
Calculating the Bogus Refresh Interval
The bogus refresh interval can be estimated using the following formula:
Bogus Refresh Interval (ms) = (1 / (Desired FPS - Actual FPS)) × 1000
This calculation helps identify how much the refresh timing is deviating from the expected values. A higher interval indicates a more significant discrepancy that may require intervention.
Example Calculation
If an application targets 60 frames per second (FPS) but is actually rendering at 58 FPS:
Bogus Refresh Interval = (1 / (60 - 58)) × 1000 = 10000 ms
This suggests a significant timing discrepancy that could be causing visual artifacts.
Impact on Display Performance
The calculated bogus refresh interval can have several consequences:
- Visual tearing: Inconsistent frame updates causing horizontal or vertical lines to appear on screen
- Input lag: Increased delay between user input and visual response
- Energy consumption: Inefficient display updates may increase power usage
- Application instability: Some applications may crash or behave unpredictably
To resolve these issues, consider updating display drivers, adjusting application rendering settings, or checking for hardware compatibility issues.
Frequently Asked Questions
What does a high bogus refresh interval indicate?
A high bogus refresh interval indicates a significant timing discrepancy between the desired and actual frame rates, which can lead to visual artifacts and performance issues.
How can I check if my system has this issue?
Use the calculator above to estimate your system's bogus refresh interval. If the value is consistently high, you may have a synchronization problem.
Is this issue common across all displays?
No, this issue is more common with certain display configurations or when using specific applications. It's often hardware or driver-specific.
Can I fix this without replacing my display?
Yes, updating display drivers, adjusting application settings, or changing power management options may resolve the issue.