[mythtv-users] Move from Nvidia 220 to what card?

Greg Grotsky spikeygg.mythbox at gmail.com
Sat Nov 8 18:40:49 UTC 2014


On Tue, Oct 30, 2012 at 9:57 AM, Andre <mythtv-list at dinkum.org.uk> wrote:

> Yes, I have both a GT220 and an overclocked GT430 and although generally
> the 430 gives slightly improved image quality it does add a little stutter
> here and there, I understand that the non overclocked ones are a lot worse.
> The GT220 is smooth for 1080i50 & 1080i60 with Advanced 2x all of the time.
>
> I found that both cards had some stutter if the audio buffers were not
> increased.
> From my rc.local
> echo 3072 > /proc/asound/card0/pcm7p/sub0/prealloc
>
> This came from some postings by JYA and looking through the frontend logs,
> other cards may have a slightly different path but it appears in the logs
> if this is a problem.
>


Would you guys share what "timing method" is being chosen by mythfrontend
to playback videos? I have a GT 430 and I've only ever been able to get it
to use the USleep or RTC methods. I am wondering if the GT 220 or one of
these fancy new cards like the GT 730
<http://www.newegg.com/Product/Product.aspx?Item=N82E16814500353>, GT 720
<http://www.newegg.com/Product/Product.aspx?Item=N82E16814500352>, or GT 630
<http://www.newegg.com/Product/Product.aspx?Item=N82E16814500346> would
work in DRM mode.

Here are examples of my logs showing the two methods:

2014-10-26 19:08:35.135915 E  VSYNC: DRMVideoSync: VBlank ioctl did not
work, unimplemented in this driver?
2014-10-26 19:08:35.135954 E  VSYNC: RTCVideoSync: Could not set RTC
frequency:
                        eno: Permission denied (13)
2014-10-26 19:08:35.136377 I  Player(0): Video timing method: USleep with
busy wait
2014-10-26 19:08:35.136392 I  Player(0): Display Refresh Rate: 59.999 Video
Frame Rate: 25.000
2014-10-26 19:08:35.136401 I  Player(0): SetFrameInterval ps:1 scan:1

or

2014-10-28 07:05:16.991023 I  VDPAU: Created 2 output surfaces.
2014-10-28 07:05:16.991062 I  VDPAU: Created VDPAU render device 1920x1080
2014-10-28 07:05:17.007008 N  Player(0): Forcing decode extra audio option
on (Video method requires it).
2014-10-28 07:05:17.096562 I  Player(0): Video timing method: RTC

Anyway, I'm thinking about upgrading my 430 to one of these newer cards to
see if it'll play some of my video library better but I can't really try it
before I buy it.
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