YTUNE
Latency Calibration
Latency & OS Guide • OLED / Fast IPS 240Hz - 540Hz Monitors | DisplayPort 1.4 / 2.1

DisplayPort DSC vs Native: Eliminate Black Screens & Alt-Tab Latency

Deep dive into Display Stream Compression (DSC). Learn when DSC adds visual pipeline overhead, why alt-tabbing causes long black screens, and how to calibrate custom timings.

$50 Flat Rate | 1-on-1 AnyDesk | 100% Refund Guarantee
// VERIFIED TELEMETRY BENCHMARK
Captured with CapFrameX & LatencyMon
Average FPS
455 FPS
Baseline: 330 FPS +38%
0.1% Lows (Stutters)
305 FPS
Baseline: 145 FPS +110%
Button-to-Pixel Delay
1.8 ms
Baseline: 5.8 ms -69%
Max DPC Latency
21 us
Baseline: 560 us -96%
Root Cause Bottleneck nvlddmkm.sys / VESA DSC 1.2a / CRU Timings

DSC Encoder/Decoder Handshake Delay & Black Screen Alt-Tab Stalls

High-refresh monitors (1440p 360Hz, 4K 240Hz) require DSC to compress video data over DisplayPort 1.4. The compression handshake causes 3-5 second black screens when alt-tabbing.

While DSC visual latency is mathematically minimal (<1 scanline), the GPU display engine must constantly negotiate DSC decompression blocks. When switching resolutions or alt-tabbing, the monitor must re-sync DSC headers, causing multi-second black screens and disabling custom DSR/DLDSR resolutions. We configure custom resolution timings (CRU), tune color depths (8-bit vs 10-bit), and optimize GPU scaling.

// WHAT WE TUNE DURING THE LIVE SESSION
Display Timing Fast Alt-Tab

Custom Resolution Utility (CRU) Timings

Eliminating black screen alt-tab delays by optimizing display front porch and sync polarity.

Color Pipeline Native RGB

Color Depth & Subsampling Bandwidth Calibration

Configuring 8-bit RGB full dynamic range to operate within native cable bandwidth when possible.

Driver Layer No Clock Drop

GPU Display Engine Power State Lock

Preventing display engine clocks from dropping during game state changes.

Kernel Timing 0.500ms

0.500ms Timer Resolution Lock

Locking scheduler frequency to eliminate simulation tick drift.

// 1-ON-1 REMOTE ANYDESK CALIBRATION

Ready for Flat Glass-Smooth Frametimes?

Every system is calibrated live via AnyDesk by Yassine. We strip DPC latency, eliminate micro-stutters, and dial in memory sub-timings. If your system does not feel measurably faster with lower input delay, you receive an immediate 100% refund.

$50 Flat • 100% Money-Back Guarantee
// FREQUENTLY ASKED QUESTIONS
// RELATED OPTIMIZATION GUIDES
Latency & OS Guide

Dual Monitor DWM Calibration

Eliminate dual monitor refresh rate mismatch stutters (240Hz + 60Hz). Professional 1-on-1 AnyDesk PC optimization by YTUNE for flat $50 with money-back guarantee.
Latency & Stutter

Windows DPC Subsystem

Permanently fix DPC latency spikes in nvlddmkm.sys, ndis.sys, and Wdf01000.sys. 1-on-1 hand-tuned system calibration verified under LatencyMon for $50.
Competitive Game

Counter-Strike 2 (CS2)

Boost CS2 FPS and fix sub-tick delay with professional 1-on-1 PC optimization. Hand-calibrated Source 2 engine, memory timings, and GPU pipeline for $50 via AnyDesk.