[mythtv-users] Vertical sync problems with PVR-150

Shawn Willden shawn-myth at willden.org
Fri Jan 19 18:40:31 UTC 2007

On Friday 19 January 2007 11:08, David Bower wrote:
> I noticed the same problem, I have 2 PVR-150's thou.. but it seems to be
> worst when the CPU utilization in TOP is around 60% or higher.
> Generally When I am "recording" one show and watching another.
> I have a Nivida 6800 Ultra Video card that at the time was on the 8776
> drivers.

In my case, it doesn't seem related to CPU usage at all. Whether I'm at 100% 
because I'm playing one show (on the same machine), recording another and 
transcoding a third, or if there's nothing but live TV being shown on a 
separate frontend, the sync issue is the same.

> What worked wonders for me was to install the latest nvidia Drivers 9746
> and the problem went away.

I'll try upgrading the nvidia drivers, but it's hard to see how they could 
have an impact, given that I see the problem even when watching on a separate 
frontend -- even a frontend with an ATI card.



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