[mythtv-users] HD Is Choppy. More RAM?

Ackster ackster at gmail.com
Tue Feb 13 22:02:21 UTC 2007

Jarod Wilson wrote:
> Ackster wrote:
>> I use a 6600GT w/ a Athlon64 3400+ and I get occasional chop @ 1920x1080 
>> with Nvidia crappy driver, so you certainly will.  It traced it back to 
>> the sync settings of the driver.  Watch your 'top' when you get choppy 
>> playback, you should see it spiking to 100% and back down to mid point 
>> and back up again when the chop occurs again.   If it does, fire up 
>> nvidia-settings applet and toggle off a v-sync or something (I forget 
>> honestly) and test your CPU load again. One of those settings makes a 
>> dramatic difference on the load.  Search this forum, I posted about the 
>> setting before.
> Wait, are you still getting chop w/those hardware specs? If so, 
> something is screwy in your setup. I've got an Athlon 64 3500+ w/a 
> GeForce 6200TC card, and cpu usage never goes over 35% playing back 
> 1080i content, never over 30% for 720p, and definitely no chop.
Only if I don't use the nvidia setting change (ie, using the defaults 
cause choppiness depending on the program).  With the setting change, I 
use no more than 35% cpu.  Without it, I use a minimum of 45%, and 
spikes up to 100%.  nvidia-drivers-1.0.9746 .  I haven't done any 
further testing since switching to my new LCD 1080p, short of changing 
my Xorg settings to full res.  Today I just installed an xorg update, 
we'll see how well the two jive together.  I think Boston Legal was 
notorious for causing chop, so I'll do some testing on it when the next 
episode has aired.


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