[mythtv-users] My HDTV woes
danielk at cuymedia.net
Mon Apr 3 17:50:53 UTC 2006
On Mon, 2006-04-03 at 11:02 -0500, leland sindt wrote:
> > Also if you have an nVidia or ATI card lower the pci
> > latency timer to 60 with setpci (see also lspci). My command:
> > setpci -v -s 01:00.0 latency_timer=60
> Can you provide some justification/evidence for changing the latency
> timer for your nVidia card? What have you seen to show that it does not
> need the full 'ff' value?
You don't need the full bandwidth for the graphics when running
mythtv, and allowing the video card to monopolize the PCI bus
prevents other high bandwidth devices like your HDTV card from
using the bus. You may not need to do this, but it can help,
especially if you have multiple HDTV cards.
I've found that this makes for a more responsive system, even
when you are playing a graphics intensive game. Though absolute
fill rates suffer a few percentage points.
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