[mythtv-users] New installation, choppy video (not DMA) help request

Steven Adeff adeffs.mythtv at gmail.com
Wed May 17 10:38:04 EDT 2006


On 5/16/06, Douglas Wagner <douglasw0 at gmail.com> wrote:
> On 5/16/06, Dan <danspam at envy.themanium.net> wrote:
> > On Mon, May 15, 2006 at 12:06:16PM -0400, Steven Adeff wrote:
> > >
> > > few folks that use ATI cards for HD playback that will be of more help
> > > here. In the end, if all else fails. Spend the $30 on an FX5200...
> >
> > So I had a 6800 lying around, and after spending most of the afternoon
> > trying to get a custom kernel and to load without agpgart all day,
> > (I am pretty rusty on building custom kernels and fighting with/figuring
> > out the debugging output of driver modules) decided to give it a shot.
> > I installed it and it seems to be working, but I _still_ get the exact
> > same behavior on HDTV streams.  Very high (higher than others on thist
> > list have reported) CPU usage on the X process, and choppy video.
> > This system works smooth as silk under windows, so it's hard to grasp
> > that it just isn't powerful enough for HD content.
> >
> > I can go back to fighting with agpgart, but others on this last have
> > reported negligible improvement with that path in the past.
> >
> > Thanks for all the help folks.  I appreciate all of the suggestions.
> What version of the NVidia card drivers are you using.  There's been reports
> that the most recent (8756 I think) drivers eat CPU for lunch.

I've only noticed high CPU use with 8756 when Bob is enabled. Without
Bob it looks to be the same as 7676 for me, except that 8756 properly
outputs 1080i.


-- 
Steve
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