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IDProjectCategoryView StatusLast Update
0000721madVRbugpublic2023-12-04 18:50
ReporterNDUS Assigned To 
Status newResolutionopen 
PlatformPCOSWindows 11OS Version23H2
Summary0000721: On 540hz monitors (but not 240hz) MadVR stutters for several seconds after opening a video
DescriptionI'm sure it's not a priority, but just thought I'd say for information's purposes that MadVR has a bug on ultra-high-framerate monitors.
It worked well on my ol' 240hz display except for the occasional hang when I would drag it to a different refresh rate display. But MadVR doesn't like the new 540hz panel.

On 540hz, playing a video:
first 1sec of playback: normal playback
2sec-6sec: stuttering playback, MadVR statistics show "display" Hz incorrectly fluctuating from 100~180Hz
7sec-infinity: normal playback

Latest Win11 update, RTX 4090, latest MadVR beta (but also happens on the stable release), happens on any given LAV decoder setting
Happens on MPC-HC or MPC-BE with MadVR enabled
Doesn't happen with MPC video renderer enabled
Also happens when all monitors besides the 540hz one are off, so it's not a mixed refresh rate problem
TagsNo tags attached.
madVR VersionmadVR v0.92.17 or latest beta
Media Player (with version info)MPC-HC latest or MPC-BE latest
Splitter (with version info)LAV Splitter
Decoder (with version info)LAV Video Decoder
DecodingDXVA2 Copyback
Deinterlacingauto mode
DXVA2 Scaling Activeno
Aero / Desktop CompositionOn
Problem occurs with modeall modes
GPU ManufacturerNVidia
GPU ModelRTX 4090
GPU Driver Version546.17



2023-12-04 11:19

administrator   ~0003075

It's possible that madVR's VSync logic is confused by the extremely high frame rate. Unfortunately it will be hard for me to fix this without having a monitor myself that can go as high. And I currently don't really have plans to buy such a monitor (because I have no real use for it).


2023-12-04 14:04

reporter   ~0003076

happens at 240 too.


2023-12-04 18:34

reporter   ~0003077

Ah - after looking at MadVR stats it does indeed happen at 240hz as Huhn says, just not as deeply (240hz > 200hz instead of 540hz > 100hz) so it's harder to see


2023-12-04 18:50

administrator   ~0003078

The highest my monitors can do here is 120.

Issue History

Date Modified Username Field Change
2023-12-01 21:59 NDUS New Issue
2023-12-04 11:19 madshi Note Added: 0003075
2023-12-04 14:04 huhn Note Added: 0003076
2023-12-04 18:34 NDUS Note Added: 0003077
2023-12-04 18:50 madshi Note Added: 0003078