Computer Screen Lock seems to pause the rendering process (Vegas 15)

merlin-beedell wrote on 5/17/2018, 5:06 AM

I have set my laptop computer to not sleep if the power is on.

I then render a long movie - 1 1/2 hours, it suggests. I go away for some time (e.g. go to bed!) but when I come back and get past the screen lock (imposed by Group Policy) I find that the movie has 'paused' rendering. It now says it will take 15 hours. I am not able to twiddle the mouse every 5 minutes just so that the rendering process can complete.

Next: I need to disconnect my computer from the USB disk where the source movie files are, so I "Cancel" the render. It does not seem to stop after some time (10+ minutes) - so I have to terminate the application. Why?

Some of this may well be due to Windows 10 Pro (latest) but I suspect that Vegas could also do something to improve this. Like making the render engine run as a windows service (a daemon task) that is not affected by screen lock - or could set an o/s option to prevent the sleep mode during the rendering (if one exists).
Or perhaps just to show some message indicating OS settings that would help.

Comments

cris wrote on 5/17/2018, 9:23 AM

There's something quite simple you can do - there's some little software script which makes the computer believe you're moving the mouse all the time. It makes very small, pixel-length movement so it's not detectable, but it will prevent the screen saver to trigger. Google is your friend.

Of course it's likely to be against the spirit of the group policy, but so long you activate only before a render, you should be alright.

merlin-beedell wrote on 5/18/2018, 7:14 AM

Hmm. I think something else is playing up. The movie was created using Vegas 14 where it rendered fine. I have recently updated to V15, and needed to tweak this movie (it is a 100mins movie) by removing one static image. Now it renders to 7% and although the 'time remaining' and 'elapsed' clocks fall and rise as appropriate [since I have disabled all Windows power saving options]. So after 1hr 40min, the remaining time shows 0min, even though the progress bar still shows 7% - but it does not 'complete'. So I have to 'cancel' the render and effectively terminate the task from task-manager.

The rendered output is watchable - but the movie is indeed just 7% of the expected amount (i.e. 7 mins out of 100mins). And no sound output file. I am using the "Render for DVD with Menus" option.

The movie previews ok within Vegas 15. Somewhat frustrating. And makes me rather concerned about V15.

EricLNZ wrote on 5/18/2018, 7:11 PM

Are you using Vegas Pro or Vegas Movie Studio?

merlin-beedell wrote on 5/19/2018, 2:24 AM

I am using Movie Studio 15.

merlin-beedell wrote on 5/24/2018, 5:18 PM

Ok - it seems that the "Maximum number of rendering threads" (under Options > Preferences > Video) was the killer. It was set to 16, but now I lowered it to 6 - and bingo, the entire video rendered without missing a beat.

Massively happy about this success. Though less pleased that this option should cause such an effect without VMS15 warning or doing anything other than crashing.