Running computer without DWM --> videplayers artifacts

[travolter]

Hi guys!

I use computer (win10-1607) without DWM because I love the smoothness of mouse movements.

In general all 2D apps are running OK .. but when I watch a movie.. I see jitter effects, no sync etc... so I have to reenable DWM to watch movies properly.

I think that the problem comes because videoplayers should rely on DWM in certain way. Probably the vsync feature of DWM... and I dont know if videoplayers can be configured in certain way to be used without DWM and maintain smoothness. I use MPV or POTPLAYER cause can be configured heavily .. but I dont find a proper setting to do that.

[RealNC]

Hi guys!

I use computer (win10-1607) without DWM because I love the smoothness of mouse movements.

In general all 2D apps are running OK .. but when I watch a movie.. I see jitter effects, no sync etc... so I have to reenable DWM to watch movies properly.

I think that the problem comes because videoplayers should rely on DWM in certain way. Probably the vsync feature of DWM... and I dont know if videoplayers can be configured in certain way to be used without DWM and maintain smoothness. I use MPV or POTPLAYER cause can be configured heavily .. but I dont find a proper setting to do that.

MPV uses d3d11-flip by default, which assumes DWM takes care of frame presentation. Do disable it, use:

d3d11-flip=no

In your mpv.conf file. If you also want exclusive fullscreen (when you switch MPV to fullscreen mode), then also add:

d3d11-exclusive-fs=yes

Full documentation:

https://mpv.io/manual/stable/

[travolter]

MPV uses d3d11-flip by default, which assumes DWM takes care of frame presentation. Do disable it, use:

d3d11-flip=no

In your mpv.conf file. If you also want exclusive fullscreen (when you switch MPV to fullscreen mode), then also add:

d3d11-exclusive-fs=yes

None of these settings works.

I was testing with all video poutputs (vo=) and hardware decoders (hwdec=) available and I cannt find a solution.
I start to think that MPV needs DWM to do v-sync, or maybe hardware decoders does not performs properly without DWM.

[RealNC]

None of these settings works.

I was testing with all video poutputs (vo=) and hardware decoders (hwdec=) available and I cannt find a solution.
I start to think that MPV needs DWM to do v-sync, or maybe hardware decoders does not performs properly without DWM.

Have you tried the "-copy" versions of hwdec and "video-sync=display-resample"?

Code: Select all

vo=gpu
profile=high-quality
hwdec=auto-copy-safe
video-sync=display-resample

[travolter]

None of these settings solve the problem in MPV
I also tested with mplayer (mplayerhq = the old MPV).. and again same problems


But I found something.

Potplayer work using following video renderers:
- Overlay mixer (video at original size and cannt be resized)
- VMR7 windowed (video at original size and cannt be resized)

The rest of video renders produce again troubles in the image.... for example VMR7 renderless/direct3D9 direct3D11/openGL produce samme problems as MPV

Any clue?

I would like to use MPV but I dont know if there is a way to force overlay mixer. That would be perfect