tearing with mpc-hc and vmr9 renderless

[codemaster]

In MPC-HC, if I switch to VMR9 (renderless), there is video tearing, but subtitles are displayed (by the internal DirectVobSub filter integrated into MPC-HC).

If I switch to VMR9 (windowed), there is absolutely no video tearing, but subtitles cannot be displayed (except if I install the external DirectVobSub filter).

I would have preferred to use the internal DirectVobSub filter that is integrated into MPC-HC, but without video tearing. What could be the reason for video tearing when VMR9 (renderless) is selected ?

Could it be the graphics processor ? I use Nvidia Geforce 6150 SE, with the nvidia driver version 306.81 installed. Or could it be the version of the operating system ? I use Windows XP Professional SP3, and MPC-HC version 1.6.6.6957 (3975d54).

[Island_Dweller]

Try this:

Open mpc-hc options > click subtitles > under texture settings disable both "allow animation when buffering" and "Round up to power of two".

Then restart mpc-hc and play a video with subs, to check if it fixes things.

[jagabo]

Try the alternate vsync option.

[codemaster]

I've just discovered that there is video tearing with VMR9 (windowed), but very little of it.

Only VMR7 (windowed) plus the external DirectVobSub filter, is absolutely tearing-free. It is very stable, just like it says in it's tooltip in MPC-HC.

VMR7 (renderless) causes frame drops. It's like video pauses for 500ms or 1 sec, while audio still plays back without any pause.

[codemaster]

@ jagabo: already tried "Alternative VSync" (and after I enabled it, I restarted mpc-hc) and it seems to minimize tearing, but it doesn't eliminate it completely.

[TechSmurfy]

Did you find a solution to your problem? I have an almost identical situation going on, video tearing when choosing renderless options (VMR7/9) in either MPC-HC or GOMplayer. It gets a bit better with alternate vsync in MPC, but no such option in GOM. I just set up this desktop (nVidia GTX760, XP-32/Win7-64). And I haven't even tested how video is displayed on games yet. I played around with all players settings and nvidia vsync settings but to no avail. I will settle for VMR7 windowed for the time being since its the smoothest.

Funny thing is there is no tearing in my ten-year old desktop (w/ nVidia FX5600, XP-32) connected to the same monitor with VMR9 renderless option at GOM, only some frame drops with VMR7 renderless. Worth noting that I got an earlier-than-june-2010 DX9.0c version on that machine.

What could be causing this? The nvidia drivers or some conflict with the latest 9.0c directx files?